software terbaru Window Power Tools

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Window Power Tools 2012.7.15 Full Version merupakan software yang berfungsi sebagai utiliti untuk mengoptimalkan kinerja PC kita, Banyak tools yang tersedia pada Window Power Tools 2012.7.15 Full Version. Berikut tools yang terdapat dalam Window Power Tools 2012.7.15 Full Version yaitu System Optimizer, PC Cleaner, Internet Cleaner, Memory Booster, Security Toolkit and File Encryptor yang bisa digunakan untuk Windows XP/Vista/Windows 7. Bagi sobat yang ingin mencoba silahkan download.

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Window Power Tools 2012.7.15 Full Version 4 MB

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Window Power Tools 2012.7.15 Full Version (4 MB)

HEXFET® Power MOSFET

type='html'>IRF Z44N


Description

Advanced HEXFET® Power MOSFETs from International Rectifier utilize advanced processing techniques to achieve extremely low on-resistance per silicon area. This benefit, combined with the fast switching speed and ruggedized device design that HEXFET power MOSFETs are well known for, provides the designer with an extremely efficient and reliable device for use in a wide variety of applications. The TO-220 package is universally preferred for all commercial-industrial applications at power dissipation levels to approximately 50 watts. The low thermal resistance and low package cost of the TO-220 contribute to its wide acceptance throughout the industry.

Absolute Maximum Ratings

Notes:

• Repetitive rating; pulse width limited by max. junction temperature.
• Starting TJ = 25°C, L = 0.48mH RG = 25W, IAS = 25A.
• ISD £ 25A, di/dt £ 230A/μs, VDD £ V(BR)DSS, TJ £ 175°C.
• Pulse width £ 400μs; duty cycle £ 2%.
• This is a typical value at device destruction and represents operation outside rated limits.
• This is a calculated value limited to TJ = 175°C .

IRF Z44N


Description

Fifth Generation HEXFET® power MOSFETs from International Rectifier utilize advanced processing techniques to achieve the lowest possible on-resistance per silicon area. This benefit, combined with the fast switching speed and ruggedized device design that HEXFET power MOSFETs are well known for, provides the designer with an extremely efficient device for use in a wide variety of applications. The TO-220 package is universally preferred for all commercial-industrial applications at power dissipation levels to approximately 50 watts. The low thermal resistance and low package cost of the TO-220 contribute to its wide acceptance throughout the industry.

Absolute Maximum Ratings

Notes:

• Repetitive rating; pulse width limited by max. junction temperature.
• VDD = 25V, starting TJ = 25°C, L = 1.0mH RG = 25W, IAS = 10A.
• ISD £ 10A, di/dt £ 280A/μs, VDD £ V(BR)DSS, TJ £ 175°C
• Pulse width £ 300μs; duty cycle £ 2%.

IRF Z48N

Description

Advanced HEXFET® Power MOSFETs from International Rectifier utilize advanced processing techniques to achieve extremely low on-resistance per silicon area. This benefit, combined with the fast switching speed and ruggedized device design that HEXFET power MOSFETs are well known for, provides the designer with an extremely efficient and reliable device for use in a wide variety of applications. The TO-220 package is universally preferred for all commercial-industrial applications at power dissipation levels to approximately 50 watts. The low thermal resistance and low package cost of the TO-220 contribute to its wide acceptance throughout the industry.

Absolute Maximum Ratings

NOTES:

• Repetitive rating; pulse width limited bymax. junction temperature.
• Starting TJ = 25°C, L = 0.37mH RG = 25W, IAS = 32A.
• ISD £ 32A, di/dt £ 220A/μs, VDD £ V(BR)DSS, TJ £ 175°C
• Pulse width £ 400μs; duty cycle £ 2%.
• This is the destructive value not limited to the thermal limit.
• This is the thermal limited value.
  

Power supplay (Adapter)

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12 volt dual voltage of adapter

• Transformator 18v-CT (min)
• Capasitor 35v
• Bridge Rectifier 2 Ampere /100 v
• c4, c5 Ceramic

12 VOLT 20 Ampere of adapter



Using a single 7812 IC voltage regulator and multiple outboard pass transistors, this power supply can deliver output load currents of up to 20 amps.

Skema 200 watt Power Amplifier STK4050 II

type='html'>Features STK4050 II

• Compact package for thin-type audio sets
• Member of pin-compatible series with outputs of 20 to
• 200W
• Easy heatsink design to disperse heat generated in thintype
• stereo sets
• Constant-current circuit to reduce supply switch-on and
• switch-off shock noise
• External supply switch-on and switch-off shock noise
• muting, load short-circuit protection, thermal shutdown
• and other circuits can be tailored-designed

Application Circuit Power Amplifier STK4050 II

Skema Specified Transformer Supply for 200 watt Power Amplifier STK4050 II

Note:

• To use the results of the max capacitor 10000Uf/80 Vot, with a pure tranformator 5 / 42 volt
• provide a good cooling plate, the ic STK4050 II

Tips that sub Woofer Voice | bass sound more felt

according to experience, you have to do a little experiment for you to get the best bass sound, stalwart, gigantic. To get the best bass sound between the subwoofer and the room you, then you should get a 'pass that point. the following manner:

• Place the subwoofer on your location on our seat. (sub Woofer do not be put on the table / cupboard you high more than 1 / 2 meter)
• Turn the sub Woofer and you do not forget to disconnect the speaker Amplifier.
• Play a song you like, which have gained a good frequency bass
• Then try running memutari room, see the characters that appear bass.
• You will hear some of the bass sound quality improvements in some corner of the room. This happens due to the interaction between low-frequency space and you. Nah corners you can select as a "node" or the point pas you need to immediately place your subwoofer in a corner of it.

Daftar Transistor Power Audio Daya besar

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• SANKEN TRANSISTOR MT200 -160V -4A 150W BCE Transistor, Type: SI-P, Voltage: 160 V, Current: 15 A, Power: 150 W, Frequency: 50 MHz
• On Semiconductor NJL3281D (NPN) /NJL1302D (PNP) BIPOLAR POWER TRANSISTORS 15 AMP, 260 VOLT, 200 WATT The ThermalTrak family of devices has been designed to eliminate thermal equilibrium lag time and bias trimming in audio amplifier applications. They can also be used in other applications as transistor die protection devices.

List Transistor for high audio power amplifier

Tabel1.1

Model	Manu	Description	Vco(V)	Ic(A)	PD(W)	hFE.	fT(MHZ	shape.	Complementary
2SA1215	Sanken	PNP	160	15	150	50	50	MT200	2SC2921
2SA1216	Sanken	PNP	180	17	200	30	40	MT200	2SC2922
2SA1295	Sanken	PNP	230	17	200	50	35	MT200	2SC3264
2SA1493	Sanken	PNP	200	15	150	50	20	MT200	2SC3857
2SA1494	Sanken	PNP	200	17	200	50	20	MT200	2SC3858
2SA1943	Toshiba	PNP	230	15	150	60	30	2-21f1A	2SC5200
2SB817	Sanyo	PNP	140	12	100	60 - 200	15	TO-3PB	2SD1047
2SC2922	Sanken	NPN	180	17	200		50	MT200	2SA1216
2SC3857	Sanken	NPN	200	15	150		20	MT200	2SA1493
2SC5200	Toshiba	NPN	230	15	150		30	2-21f1A	2SA1943
2SD1047	Sanyo	NPN	140	12	100	60 - 200	15	TO-3PB	2SB817
MJ15003	Onsemi	NPN	140	20	250	25-150	2	TO-3	MJ15004
MJ15004	Onsemi	PNP	140	20	250	25-150	2	TO-3	MJ15003
MJ15024	Onsemi	NPN	250	16	250	15-60	4	TO-3	MJ15025
MJ15025	Onsemi	PNP	250	16	250	15-60	4	TO-3	TIP36C
TIP35C	ST	NPN	100	25	125	25-50	3	TO-218	TIP35C
TIP36C	ST	PNP	100	25	125	25-50	3	TO-218	Juned
TIP142	ST	NPN-Darlington	100	10	125	1000min		TO-218	Juned
TIP147	ST	PNP-Darlington	100	10	125	1000min		TO-218	Juned

Skema LM3886 68 Watt Audio Power Amplifier

type='html'>Skema Rangkaian LM3886 68 Watt Audio Power Amplifier

The LM3886 is a high-performance audio power amplifier capable of delivering 68W of continuous average power to a 4 load and 38W into 8 with 0.1% THD+N from 20Hz-20kHz.

The performance of the LM3886, utilizing its Self Peak Instantaneous Temperature (°Ke) (SPiKe™) protection circuitry, puts it in a class above discrete and hybrid amplifiers by providing an inherently, dynamically protected Safe Operating Area (SOA). SPiKe protection means that these parts are completely safeguarded at the output against overvoltage, undervoltage, overloads, including shorts to the supplies, thermal runaway, and instantaneous temperature peaks.

The LM3886 maintains an excellent signal-to-noise ratio of greater than 92dB with a typical low noise floor of 2.0µV. It exhibits extremely low THD+N values of 0.03% at the rated output into the rated load over the audio spectrum, and provides excellent linearity with an IMD (SMPTE) typical rating of 0.004%.

Gambar Skema LM3886 68 Watt Audio Power Amplifier

Notice:

• 68W cont. avg. output power into 4 at VCC = ±28V
• 38W cont. avg. output power into 8 at VCC = ±28V
• 50W cont. avg. output power into 8 at VCC = ±35V
• 135W instantaneous peak output power capability
• Signal-to-Noise Ratio >= 92dB
• An input mute function
• Output protection from a short to ground or to the supplies via internal current limiting circuitry
• Output over-voltage protection against transients from inductive loads
• Supply under-voltage protection, not allowing internal biasing to occur when |VEE| + |VCC| <= 12V, thus eliminating turn-on and turn-off transients
• 11-lead TO-220 package
• Wide supply range 20V - 94V

Skema 2N3055 Power Amplifier

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Amplifier power is a series of electronics that is used to strengthen the power (or energy in general). In the field of audio, amplifier will amplify the sound signal (which has been expressed in the form of electric current) on the input it into electric current is stronger at the output. The amount of strengthening is often known by the term gain. Value of the gain is expressed as a function of frequency is called the transfer function.

So the gain is the result of the power output (Pout) and power at the input to its function in the form of frequency. The size of the gain, (G) is usually the Decibel (dB).

2N3055 Power Amplifier

Skema 2N3055 Power Amplifier. The optimal supply voltage is around 30V, but this amp work from 24 to 32V. The maximal input voltage is around 0.8 - 1V. As you can see, in this design the components have a big tolerance, so you can build it almost of the components, which you find at home. The and transistors can be any NPN type power transistor, but do not use Darlington types. The output power is around 150 Watt.

Amplifier schematic:

Skema Rangkaian 2N3055 Power Amplifier

capacitor C1 regulates the low frequencies (bass), as the capacitance grows, the low frequncies are getting louder.

capacitor C2 regulates the higher frequencies (treble), as the capacitance grows, the higher frequencies are getting quiter.

this is a class B amplifier, this means, that a current must flow through the end transistors, even if there is no signal on the input. This current can be regulated with the 500Ω trimmer resistor. As this current incrases, the sound of the amplifier gets better, but the end transistors are more heating. But if this current decrases, the transistors are not heating so much, but the sound gets worse.

Rangkaian TDA 2616 Hi-fi Power Amplifier

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This circuit is a 2X12 watt Hi-Fi Power amplifier circuit using IC TDA 2616 from Phillips. This circuit very Simple and robust circuit using very less components makes the circuit ideal for a portable power amplifier. The circuit delivers 12 W power on 8 Ohm speaker for each channel at +/- 12 V dual supply.

Skema Rangkaian TDA 2616 Hi-fi Power Amplifier

Note:

• Capacitors except C10 & C9 are ceramic.
• Capacitors Electrolic must be rated 50V.
• Use a well regulated and filtered +/- 12 V dual power supply that is able to provide at least 2 A continuous current.

IC TDA2616 is a stereo power amplifier IC comes in a 9-lead single-in-line (SIL9) plastic power package (SOT131). This IC is specially designed for mains fed amplifier circuits, such as stereo radio,tape and television .The IC has good gain balance of both channels and Hi-fi in accordance with IEC 268 and DIN 45500 standards.

IC TDA 2616 DESCRIPTION

The TDA2616 is a hi-fi stereo amplifier designed for mains fed applications, such as stereo radio and TV. The circuit is optimally designed for symmetrical power supplies, but is also well-suited to asymmetrical power supply systems. An output power of 2 ´ 12 W (THD = 0.5%) can be
delivered into an 8 Wload with a symmetrical power supply of ±16 V. The gain is internally fixed at 30 dB, thus offering a low gain spread and a very good gain balance between the two amplifiers (0.2 dB). A special feature is the input mute circuit. This circuit disconnects the non-inverting inputs when the supply voltage drops below ±6 V, while the amplifier still retains its DC operating adjustment. The circuit features suppression of unwanted signals at the inputs, during switch-on and switch-off. The mute circuit can also be activated via pin 2. When a current of 300 mA is present at pin 2, the circuit is in the mute condition. The device is provided with two thermal protection circuits. One circuit measures the average temperature of the crystal and the other measures the momentary temperature of the power transistors. These control circuits attack at temperatures in excess of +150 °C, so a crystal operating temperature of max. +150 °C can be used without extra distortion.

Power Amplifier Sanken 1000 watt

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This is a circuit of 1000watt power amplifier. This time I don't have a picture to the circuit board, but because the amplifier circuit is quite simple, you can design it yourself PCB easily or you can order it at the store PCB audio kit in the center of electronic singosaren oriental, solo.

Skema Rangkaian Sanken 1000 watt

The assemble cables for DC power supply and output transistors must be large, use size 1.5-3mm for large current passed. The supply used transformer with 20A/45Ct and at least 4x10000uf/80 volt capasitor. this circuit is able to supply power 10000watt therefore the power transistor will be very hot, give good cooling fan on the power transisitor

Transitor alternative to replacement of the 2SA1494 is 2SA1216 From SANKEN. The transistor has a 200-350 watt power dissipation of each pair so that for long-term operation of more durable. Keep in mind, usually sold a pair of power transistors with its complement, so you can not buy 2SC2922 alone without 2SA1216 or 2SA1494 without 2SC3858. The price range for transitor tsb is 30-40 thousand Rupiah / pair.

Rangkaian Power Amplifier BTL

type='html'>Power Amplifier BTL

Audio amplifiers operate either in a BTL (bridged) or single-ended ("normal") configuration. In the single-ended setup, the output lead goes to the "hot" or "+" side of the load (speaker or speaker box since we are talking audio) and the "-" or "negative" side of the load is tied to a common ground shared with the amplifier. In the BTL configuration, one amp is connected to the "+" side of the speaker (load) and a second amp is connected to the "-" side of the load. For this to work, the output signal from the second amplifier must be a "mirror image" (identical in every respect, but 180 degrees out of phase) of the output from the first amp. The BTL configuration is most often seen in low-voltage, battery-powered applications (like cell phones or "walkman" type personal tape or cd players etc) or in automotive applications over about 10 watts per channel.

In the BTL configuration, each amp drives half the load impedance. With the signals being out of phase, the voltage swing across the load appears to be doubled, and with each amp driving half the impedance the current is doubled. In theory the bridged pair will produce 4 times the power into the load that either amp acting alone could provide. In reality it seldom works that well.

This is an power amplifier circuit of a BTL system, which comprises a first op-amp chip which outputs an output signal having a same phase as an input signal input to a signal input terminal, a second operational amplifier which outputs an output signal having an opposite phase to the input signal, a voltage divider which generates a midpoint voltage of the input signal, a first resistor connected between an output terminal and a negative phase input terminal of the first operational amplifier, second and third resistors connected in series between the negative phase input terminals of the first and second operational amplifiers, a fourth resistor connected between an output terminal and the negative phase input terminal of the second operational amplifier, and an impedance converter connected between a midpoint voltage node of the voltage divider and a series-connection node of the second and third resistors. (end of abstract)

Gambar Rangkaian Power Amplifier BTL

List Componet:

R1, R2,R3, R4, R6..................... 10kOhm.
R3............................................. 20kOhm.
C1, C2, C3, C4........................... 10µF.
Catu daya (VCC) ±12 V.
.

Audio Limiter Sederhana Untuk Power Amplifir

type='html'>Rangkaian Audio Limiter Sederhana Untuk Power Amplifir

This is a simple peak limiter - performance is quite respectable, and it can be used with conventional amps using bipolar transistors, MOSFETs, valves, etc, as well as BTL (Bridge Tied Load) amplifiers in car audio systems or for hi-fi. It will work with any amplifier from about 10W up to the highest power you are likely to encounter.

The gain control element is a Light Dependent Resistor (LDR). Once this point is reached, a very small increase in amplifier output voltage (and power) will cause the LED to provide much more light, reducing the value of the LDR, and thus reducing the input voltage. The effect is to keep the level more or less constant. This will prevent the amp from clipping (although a small amount on transients is unavoidable), and increase the apparent loudness because the signal is compressed.

The complete assembly must be totally shielded from light. I will leave the exact method to the individual constructor, but you might consider heatshrink tubing, a black 35mm film can, or anything else that comes to hand that is light proof. If metal, it must be earthed along with the shield around the light pipe - make sure that the LED leads are well insulated - a short to earth may damage the amp, and will almost certainly do something unpleasant and / or undesirable.

Skema Rangkaian Audio Limiter Untuk Power Amplifir

picture above shows the circuit of the unit. A 10k resistor was selected for the input, and although this is lower than I would like, many power amps have a relatively low input impedance and too much signal would be lost. The LDR simply shunts the signal to earth when it is illuminated. A single unit should control both channels of the power amp as shown. If only one channel is needed, then delete the components for "Right", including the associated light pipe. Use the input circuit shown in Figure 3 to improve limiting by using a higher input resistance.

IMPORTANT- If your amp is operating in bridge mode, the terminal marked "Com" must go to earth - not one or the other of the speaker leads. For automotive use (or any other single supply bridged amplifier), you must use two completely separate circuits, since the speakers operate with a quiescent voltage of about 7V above the chassis (earth) voltage, and there is no usable common terminal available.



The value of R3 must be selected based on the amplifier power. For a 100W amp, a value of 1.8k is about right, but it is likely that a little experimentation will be needed. As a rough guide, the table below will be helpful, and it is probable that the value from the table will be OK. The idea is to limit the current through the LED to a sensible maximum.

The polarity of the connection to the power amp output does not matter since a bridge rectifier is used. Very little current is drawn from the power amp output, and the whole circuit is self limiting, so it is not critical. When complete, advance the volume until you figure that this is a loud as you want the amp to be, and adjust the trimpot until the external LED just flashes. Use a multi-turn trimpot, as the setting is quite touchy. It could be made much less so, but at the expense of circuit flexibility.

Now, if you try to drive the amp harder, the external LED shows that the circuit is working, by flashing brighter, but the volume should remain quite stable. This can be checked with an oscilloscope (ideally), but otherwise just set it by ear. As more signal is driven into the amp, it may sound louder, but this is only because the input signal is being compressed.

Amplifier power in Table 1 for an 8 Ohm load. All diodes are 1N4004 or similar. The voltage rating on the caps should be 63V, and R2-L and R2-R should be rated at at least 1W. VR1 should be a multi-turn trimpot. High brightness LEDs will improve sensitivity and are recommended (but not essential).

Thanks to sound.westhost.com

Rangkaian 500Watt Power Amplifier

type='html'>500Watt Power Amplifier

There are some important updates to this project, as shown below. Recent testing has shown that with the new ON Semi transistors it is possible to obtain a lot more power than previously. The original design was very conservative, and was initially intended to use 2SA1492 and 2SC3856 transistors (rated at 130W) - with 200W (or 230W) devices, some of the original comments and warnings have been amended to suit.

Skema Rangkaian 500Watt Power Amplifier

Note:

• This amplifier is not trivial, despite its small size and apparent simplicity. The total DC is over 110V (or as much as 140V DC!), and can kill you.
• The power dissipated is such that great care is needed with transistor mounting.
• The single board P68 is capable of full power duty into 4 Ohm loads, but only at the lower supply voltage.
• For operation at the higher supply voltage, you must use the dual board version.
• There is NO SHORT CIRCUIT PROTECTION. The amp is designed to be used within a subwoofer or other speaker enclosure, so this has not been included. A short on the output will destroy the amplifier.

Please note that the specification for this amp has been upgraded, and it is now recommended for continuous high power into 4 Ohms, but You will need to go to extremes with the heatsink (fan cooling is highly recommended). It was originally intended for "light" intermittent duty, suitable for an equalised subwoofer system (for example using the ELF principle - see the Project Page for the info on this circuit). Where continuous high power is required, another 4 output transistors are recommended, wired in the same way as Q9, Q10, Q11 and Q12, and using 0.33 ohm emitter resistors.

Continuous power into 8 ohms is typically over 150W (250W for ±70V supplies), and it can be used without additional transistors at full power into an 8 ohm load all day, every day. The additional transistors are only needed if you want to do the same thing into 4 ohms at maximum supply voltage! Do not even think about using supplies over ±70V, and don't bother asking me if it is ok - it isn.

Power Amplifier Berbasis IC LM12

type='html'>Rangkaian Power Amplifier Berbasis IC LM12

This is 80Watt power amplifier OCL circuit using devices pillar is the integrated circuit LM12. This interesting routes many good bass and treble alive. If a friend is the CD therefore has a beautiful voice and Pre Tone Control is good that some will take something very magical. Importantly should choose Power supply source, which has been fairly high voltage class 38Vdc GND 38V-3A is the current low level. To decorate the fines resulting from the size finely R4 2 ohm/4W Idle current about 30mA, or with the whole center just before. Almost forgotten friends should choose the material is good, good, especially IC LM12 and Transistor everyone.

Skema Rangkaian Power Amplifier LM12

Layout IC LM12

The LM12 is a power op amp capable of driving ±25V at ±10A while operating from ±30V supplies. The monolithic IC can deliver 80W of sine wave power into a 4Ω load with 0.01% distortion. Power bandwidth is 60 kHz. Further, a peak dissipation capability of 800W allows it to handle reactive loads such as transducers, actuators or small motors without derating. Important features include:

• input protection
• controlled turn on
• thermal limiting
• overvoltage shutdown
• output-current limiting
• dynamic safe-area protection

The IC delivers ±10A output current at any output voltage yet is completely protected against overloads, including shorts to the supplies. The dynamic safe-area protection is provided by instantaneous peak-temperature limiting within the power transistor array.

The turn-on characteristics are controlled by keeping the output open-circuited until the total supply voltage reaches 14V. The output is also opened as the case temperature exceeds 150°C or as the supply voltage approaches the BVCEO of the output transistors. The IC withstands overvoltages to 80V.

+12Volt|-12Volt Dual Regulator Power Supplay

type='html'>This is of a dual regulated that provides +12V and -12V from the AC mains. A regulator like this is a very essential tool on the work bench of an electronic hobbyist.

Transformer T1 steps down the AC mains voltage and diodes D1, D2, D3 and D4 does the job of rectification. Capacitors C1 and C2 does of filtering.C3, C4, C7and C8 are decoupling capacitors. IC 7812 and 7912 are used for the purpose of voltage regulation in which the former is a positive 12V regulator and later is a negative 12V regulator. The output of 7812 will be +12V and that of 7912 will be -12V.

Skema rangkaian Dual Regulator Power Supplay

IC regulator 78xx

IC regulator 79xx

Note:

• Use Transformer 15-0-15 V, 1A secondary step-down transformer.
• Capacitor C1,C2,C5 and C6 must be rated 50V or more.

IC regulator 78xx (7812) Description

The LM78XX series of three terminal regulators is available with several fixed output voltages making them useful in a wide range of applications. One of these is local on card regulation, eliminating the distribution problems associated with single point regulation.

Maximum Ratings

• Input Voltage (VO = 5V, 12V and 15V) : 35V
• Operating Temperature Range (TA) : 0°C to +70°C
• Maximum Junction Temperature : 150°C
• Storage Temperature Range −65°C to +150°C
• Lead Temperature (Soldering, 10 sec.)

IC regulator 79xx (7912) Description

The LM79XX series of three-terminal negative regulators are available with several fixed output voltages, making them useful in a wide range of applications. Each type employs internal current limiting, thermal shutdown and safe operating area protection, making it essentially indestructible.


Maximum Ratings

• Input Voltage (VO = -5V, to 15V) : 35V
• Operating Temperature Range (TA) : 0°C to +70°C
• Maximum Junction Temperature : 150°C
• Storage Temperature Range −65°C to +150°C
• Lead Temperature (Soldering, 10 sec.)

.

Rangkaian STK 4192 Power Amplifier 50 Watt Stereo

type='html'>STK 4192 Power Amplifier Circuit Features

• The STK4102II series (STK4192II) and STK4101V series (high-grade type) are pin-compatible in the output
• range of 6W to 50W and enable easy design. Small-sized package whose pin assignment is the same
• as that of the STK4101II series
• Built-in muting circuit to cut off various kinds of pop noise
• Greatly reduced heat sink due to substrate temperature 125°C guaranteed
• Excellent cost performance

Layout STK 4192 Power Amplifier

Skema Rangkaian STK 4192 Power Amplifier 50 Watt Stereo

Component List

R1___________ 56KΩ 1/4W Resistor
R2___________ 56KΩ 1/4W Resistor
R3___________ 1KΩ 1/4W Resistor
R4___________ 1KΩ 1/4W Resistor
R5___________ 560Ω 1/4W Resistor
R6___________ 560Ω 1/4W Resistor
R7___________ 100Ω 1/4W Resistor
R8___________ 100Ω 1/4W Resistor
R9___________ 56KΩ 1/4W Resistor
R10__________56KΩ 1/4W Resistor
R11__________3.3KΩ 1/4W Resistor
R12__________3.3KΩ 1/4W Resistor
R13__________3.3KΩ 1/2W Resistor
R14__________3.3KΩ 1/2W Resistor
R15__________4.7Ω 1/4W Resistor
R16__________4.7Ω 1/4W Resistor
R17__________1KΩ 1/2W Resistor
R18__________1KΩ 1/4W Resistor

C1___________ 400pF Polyester Capacitor
C2___________ 400pF Polyester Capacitor
C3___________ 2.2µF Polyester Capacitor
C4___________ 2.2µF 50V Electrolytic Capacitor
C5___________ 100µF 50V Electrolytic Capacitor
C6___________ 100µF 50V Electrolytic Capacitor
C7___________ 0.1µF 50V Electrolytic Capacitor
C8___________ 0.1µF 50V Electrolytic Capacitor
C9___________ 10µF 50V Electrolytic Capacitor
C10___________ 10µF 50V Electrolytic Capacitor
C11___________ 47µF 50V Electrolytic Capacitor
C12___________ 47µF 50V Electrolytic Capacitor
C13___________ 100µF 50V Electrolytic Capacitor
C14___________ 10µF 50V Electrolytic Capacitor
IC___________ STK4192II Integrated STK Power Amplifier series

power sapply recommend for the STK 4192

Tips that bass sound more felt

according to experience, you have to do a little experiment for you to get the best bass sound, stalwart, gigantic. To get the best bass sound between the subwoofer and the room you, then you should get a 'pass that point. the following manner:

1. Place the subwoofer on your location on our seat. (sub Woofer do not be put on the table / cupboard you high more than 1 / 2 meter)
2. Turn the sub Woofer and you do not forget to disconnect the speaker Amplifier.
3. Play a song you like, which have gained a good frequency bass
4. Then try running memutari room, see the characters that appear bass.
5. You will hear some of the bass sound quality improvements in some corner of the room. This happens due to the interaction between low-frequency space and you. Nah corners you can select as a "node" or the point pas you need to immediately place your subwoofer in a corner of it.

Rangkaian Power Amplifier MJ15003 -MJ15004

type='html'>Power Amplifier MJ15003 -MJ15004

When I began the design of this amp, my goal was to make a product better suited for the reproduction of complex music and voice. Although I emphasize the high electrical properties, the most important requirement is to create a superior sound, vivid images and superb spatial aural clarity.

Although the average level of listening is usually less than 10 watts, my design concept was to an amplifier with plenty of reserves, but the deviation is for Class A, at the height of the audience of cross-over distortion at a very low level. There is no place in the pathway, enhances the precision of the tonal characteristics of instruments and voices clearly. This Amplifier is virtually zero phase distortion over the audio range resolution is perfect and completely color the sound.

Skema Rangkaian Power Amplifier MJ15003 -MJ15004

Amplifier Specification:

Maximum Output: 240 watts rms into 8 Ohms, 380 watts rms into 4 Ohms
Audio Frequency Linearity: 20 Hz – 20 kHz (+0, -0.2 dB)
Closed Loop Gain: 32 dB
Hum and Noise: -90 dB (input short circuit)
Output Offset Voltage: >13 mV (input short circuit)
Phase Linearity: > 13 0 (10 Hz – 20 kHz)
Harmonic Distortion: > 0.007% at rated power
IM Distortion: > .009% at maximum power
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12 Volt Hifi Power Amplifier

type='html'> Rangkaian 12 Volt Hifi Power Amplifier

This is circuit amplifier contains only an op-amp and four transistors (easily available from your electronics junk box). the op-amp used is uA 741 which produces the required gain.The four transistors are wired as complementary Darlington’s which produces the drive for the speaker.

Skema rangkaian 12 Volt hifi power amplifier

Layout Op-Amp UA741

The voltage drop across the resistors R2 and R3, are used as the input of the Darlington pairs . As the input current to the op-amp depends on the level of the signal op amp is amplifying the voltage drop across the resistors R2 and R3 will be proportional to the input signal.These voltage drops are given to the base of Darlington pairs. The amplification is stabilized as a result of the negative feedback from the junction of collectors of Q2 and Q4. The theory may seem little awkward for you.But its working good.Such a simple but stable circuit as this can produce a reasonable output of 12W on a 4 Ohm speaker.

IC Op-Amp UA741

The UA741 is a high performance monolithic operational amplifier constructed on a single silicon chip. The high gain and wide range of operating voltages provide superior performances in integrator, summing amplifier and general feedback applications. The internal compensation network (6dB/ octave) insures stability in closed loop circuits.

Data max Ic UA741
* Symbol Parameter UA741M UA741I UA741C Unit.
* Supply voltage (VCC) ±22 V.
* Differential Input Voltage (Vid ) ±30 V.
* Input Voltage (Vi ) ±15 V.
* Power Dissipation (Ptot) 500 mW.
* Storage Temperature Range (Tstg) -65 to +150 °C.

Rangkaian USB Power Boster (USB Adaptor )

type='html'>USB Power Boster (USB Adaptor )

USB can be configured for connecting several peripheral devices to a single PC, Since a PC can supply only a limited power to the external devices connected through its USB port, when too many devices are connected simultaneously, there is a possibility of power shortage, Therefore an external power source has to be added to power the external devices. In USB, two different types of connectors are used: type A and type B. The circuit presented here is an addon unit, designed to add more power to a USB supply line (type-A). When power signal from the PC (+5V) is received through socket A, LED1 glows, opto-diac IC1 conducts and TRIAC1 is triggered, resulting in availability of mains supply from the primary of transformer X1.

Skema rangkaian USB power boster (USB adaptor )

Now transformer X1 delivers 12V at its secondary, which is rectified by a bridge rectifier comprising diodes D1 through D4 and filtered by capacitor C2. Regulator 7805 is used to stabilise the rectified DC. Capacitor C3 at the output of the regulator bypasses the ripples present in the rectified DC output. LED1 indicates the status of the USB power booster circuit. Assemble the circuit on a generalpurpose PCB and enclose in a suitable cabinet. Bring out the +5V, ground and data points in the type-A socket. Connect the data cables as assigned in the circuit and the USB power booster is r e a d y t o function.

Rangkaian Power Supplay

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Electronic devices should be powered by direct current supply DC (direct current) which is stable in order to work properly. The battery or batteries is a source of DC power supply is best. But for applications that require greater power supply, the source of the battery is not enough. Sources of power supply is a source of alternating AC (alternating current) from power plants. This requires a power supply device that can change the AC into DC current.

Rangkaian Power Supplay

Now it should not need another effort to make good pwer supplay you do not need to look for op-amps, transistors and other components, because these circuits are packaged into a single fixed voltage regulator IC. Are now widely recognized as a component of 78XX series fixed positive voltage regulator and the 79XX series is a voltage regulator to remain negative. Even these components are usually already equipped with current limiting (current limiter) and also limiting the temperature (thermal shutdown). This component is only three pins, and by adding some components alone can be a series of power supply regulation was good.

Skema rangkaian power supplay

It's just to note that the IC regulator circuit that can work, the input voltage must be greater than the output voltage regulator. Usually the difference voltage Vin to the recommended VM is in the component datasheet. Usage heatshink (Aluminum cooling) is recommended if these components are used to supply large currents. In the datasheet, these components can pass the maximum current reached 1 A.

Rangkaian Power Amplifier Sound System 2000 Watt

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This power amplifier circuit provides up to 2000Watt, it has to be said that this amplifier will blow up any speaker connected to it. I recommend this as a 'thought experiment', rather than actually doing it!. 110V RMS into 8 ohms is 1500 W. How long would you expect the speaker to last? Most will be toast within perhaps 30 seconds or less!

Skema rangkaian power amplifier sound system 2000 watt

The transistor Q5 (the bias servo transistor) is mounted on the heatsink, in excellent thermal contact. This is because, unlike most of my other designs, this amp uses conventional Darlington output configuration. It is necessary to use a Darlington arrangement (or a low power Darlington transistor as shown) for Q5 to ensure that the bias remains at a safe value with temperature. There is probably good cause to model and test this aspect of the design very carefully, because it is so important. The arrangement as shown will reduce quiescent current at elevated temperatures. For example, if total Iq at 24°C is 165mA, this will fall to ~40mA at 70°C. This is probably fine, because there is some delay between the a power 'surge' and the output transistors transferring their heat to the bias servo via the heatsink.

The power supply needed for an amp of this size is massive. Grown welding machines will look at it and cry. For intermittent operation, you need a minimum of a 1000VA transformer (or 1500VA for the 2000W version), and it will have to be custom made because of the voltages used. If you expect to run the amp at continuous high power, then transformers should be 2kVA and 3000VA respectively. Filter capacitors will pose a problem - because you need caps rated for 150V, these will be hard to find. Because high voltage high value caps can be difficult to find, it may be necessary to use two electros in series for each capacitor location. This is the arrangement shown. You must include the resistors in parallel - these equalise the voltage across each capacitor so that they have the same voltage. Remember to verify the ripple current rating! This can be expected to be over 10A, and under-rated capacitors will blow up.

Skema Rangkaian Power Supplay 2000 VA

WARNING

This project describes an amplifier, power supply and tests procedures that are all inherently dangerous. Nothing described in this article should even be considered unless you are fully experienced, know exactly what you are doing, and are willing to take full 100% responsibility for what you do. There are aspects of the design that may require analysis, fault-finding and/or modification

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