Analisis Nodal/Simpul/Titik -Analisa Rangkain Elektronika

type='html'>Analisis Nodal/Simpul/Titik Untuk mempermudah Analisa Rangkain Elektronika

Nodal / Simpul /titik Analysis By using this method, we will first obtain the size of the voltage on each of a series in which later can be used to explore the amount of electricity the other.

Stages to implement a Nodal / Simpul / Titik Analysis is this:
1. Determine the amount of twist in the series.
2. Choose a Simpul reference mark and the rest with a certain voltage, such as V1, V2, V3 and so on.
3. Determine the direction of flow on each knot. On a note that is not the directions, the directions are usually chosen exit / leave the simpul. Rename the current I1, i2, I3, and so on.
4. Apply Kirchoff current law at every twist in the simpul, except reference. Consider that all flows that do not know the directions, will leave every simpul.
5. Complete equality of linear simultan

Example
From the following series, specify the size of the voltage is in each simpul it!


Answer:
Determine the number of simpul:


Simpul V1:


Simpul V2:


Expressed in the form of a matrix:

Rangkain Surround Sederhana Berbasis Op-Amp

type='html'>

Rangkain Surround Berbasis Op-Amp

Although there have been similar circuits published over the years, this is a little different in a few areas. I wanted to avoid having any active electronics in the main Left and Right channels, since this eliminates any possibility of sound degradation due to the introduction of the opamps. The input impedance of 50k will not pose a problem for any preamp (including valve types), and the main signal is simply in parallel with the additional circuitry.

No volume control has been included, since you already have one in the preamp. It would just become another component to fiddle with, and since it would be rarely used, would probably become noisy over time.

Skema Rangkain Surround Berbasis Op-Amp

Opamp U1A is connected as a subtracting amplifier. Should the same signal be applied to both inputs, the output is zero. As a result, it will remove all common information from the stereo signal, and reproduce only the difference signal - in exactly the same way as the original Hafler design.

U1B is a simple summing amplifier, and the output contains all the information from both the left and right channels. A possibility that springs to mind is that we could then subtract the difference information from this output, so that only material that is absolutely common to both channels would be reproduced. Would this improve the performance to the extent that the extra circuitry is warranted? I tend to doubt it, but will look into this further.

Rangkain Pemutar CD/MP3 CD Dengan CDROOM

type='html'>Pemutar CD/MP3 CD Dengan CDROOM

Most of the CDROMS available have an Audio-Out Output to either plug in the headphones or connect it to an amplifier. This circuit enables one to use the CDROM as a stand alone Audio CD player without the computer. This circuit is nothing but a power supply which supplies +5v, +12V and Ground to the CDROM drive and hence can be used without the computer. You should buy a D-type power connecter to connect this circuit's outputs to the CDROM.

Skema Rangkain Pemutar CD/MP3 CD Dengan CDROOM

Note:

• The circuit can be assembled on a Vero board
• Heat sinks are recommended for IC regulator 7812,7805
• Used transformator 12-CT-12 2 Ampere

The details of the D connector are shown along with the circuit diagram. Note that the D-connector goes into the CDROM in only one way and hence prevents any damage due to wrong connection. Ensure that the 12V(yellow) wire is connected to the right of the D-connector(as seen from behind ,i.e the connector holes away from you with the curved portion of the connector upwards) As soon as an Audio CD is inserted, the CD begins to play. To move to the next track, press the Skip-Track button on the CDROM front Panel.