Showing posts with label Mainan. Show all posts
Showing posts with label Mainan. Show all posts

Wednesday, August 8, 2012

Rangkaian Radio Remote Control Mobil Mainan

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Rangkaian Remote Control Mobil Mainan

In this system, radio signals emanated not continue to be raised but only when the controller sends the right / left or forward / backward, that is only a radio frequency that discontinuous,so that the credit delivery frequency radio waves.

The amount of credit that is sent to represent the command post, the forward was represented with 8 credits, left represented with 16 credits, 32 credits right and Backward 64 credits. Commands can be sent is a combination of 2 commands, namely the combination of forward / backward and right / left, as an example can be sent forward and the left, in this case the amount of credit that is sent 24, the Answer of the forward and the balance of 8 the left as many as 16 credits.


Making transformer TX and RX:
Transformer T1 in series transmitter and recipient, is the same, and must be made. Transformer was built using plastic koker transformer (spare part radio) so that the step appears to have 5 channels that can be filled with a wire coil, as shown in the picture. Wearing this koker facilitate scrolling wire transformer. If it can not be koker like that, just use the normal. Koker transformer is small and ferit is also small (3 mm) as the first assembly is often used for CB 27 MHz radio.

Transformer wire to wire to use in the unloading of koker, and slowly open the wire coil inside the existing wire koker because it is quite smooth and easy to drop out
  • coil wire from the foot of the number to 5 feet 4 hours direction (CW) of 3-and-roll at level 1 (line at the bottom line above)
  • Scroll through the wire from 1 foot to 2 feet clockwise roll of 4 on the exact level 2.
  • Continue to roll (from step 2) clockwise a quarter roll of 3 to 3 feet in three levels. (You can set exactly a quarter roll, because the path that has kokernya be split into 4).
Making coil L1
Scroll through the copper wire diameter size of 0.3 - 0.5 mm of 10 quarter roll koker in diameter about 4 mm (which will be released later) is also clockwis

Making coil L2
Scroll through the copper wire diameter of 0.1 mm sizes of 50 on the roll without koker plastic ferit diameter about 3.5 - 4 mm (search item from the plastic material used) is also clockwise. The length of the coil along liputi in 5 mm.

Rangkaian Pembangkit Melody|Musik Mainan

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Circuit of musik|melody generator you can make using an IC.The UM66 series are CMOS IC’s designed for using in calling bell, phone and toys. It has a built in ROM programmed for playing music. The device has very low power consumption.Thanks for the CMOS technology.The melody will be available at pin3 of UM66 and here it is amplified by using transistor Q1 dan Q2 to drive the speaker.

 Pembangkit Melody MainanSkema Rangkaian Pembangkit Melody Mainan

UM66 is a pleasing music generator IC which works on a supply voltage of 3V. the required 3V supply is given through a zener regulator. its out put is taken from the pin no1 and is given to a push pull amplifier to drive the low impedance lowd speker. A clss A amplifier before pushpull amplifier can be used to decrese the noise and improve out put. UM66 is a 3 pin IC pakage just looks like a BC 547 transistor.

Notes

  • Power supply must be between 6V - 15V .
  • Melody begins from the first note if power is reseted.
  • Assemble the circuit on a good quality common board.


IC UM66 Description
The U66 series is a CMOS LSI designed melody generator IC for use in telephones and toys application. It has an on-chip ROM programmed for musical performance. Produced by CMOS technology, the device results in very low power consumption. And with built-in RC oscillator, a compact melody module can be constructed with only a few additional components.

 IC UM66

Pin No Designation Description
-1. Out put Melody out put
-2. +Vdd Positive power supply
-3. -Vss Negative Power supply

Features of UM66T series
-62 Note ROM Memory
-Voltage rating: 1.3V to 3.3 V
-Power on reset
-