## Monday, March 27, 2017

### Circuit Diagram White / LF Noise Generator using 741 IC

Robotronicdiagram. - This is Circuit Diagram White / LF Noise Generator using 741 IC like in Figure 1 below. The main component in this circuit diagram is 741 IC and other components. In here we will show you also the component parts used and the simple description of this circuit diagram and the last we will give you link to read more about this circuit from original source.

Circuit Diagram

Component Part
1. R1 = 470 KΩ
2. R2, R5, R8, R9 = 10 KΩ
3. R3, R6, R10 = 100 KΩ
4. R4 = 4.7 KΩ
5. R7 = 1 MΩ
6. C1 = 0.47 µF
7. C2 = 100 µF/10v
8. C3, C6 = 1 µF/16v
9. C4 = 0.15 µF
10. C5 = 0.015 µF
11. C7 = 0.001 µF
12. C8 = 100 µF/25V
13. IC1, IC2 = 741
14. ZD1 = 12V 400mW
Description

Circuit diagram like in figure 1 above is Circuit Diagram White / LF Noise Generator using 741 IC. According Electronicsproject site describe thatthe output of IC1 is given to a low pass filter which cuts off high frequencies. Point A is connected to amplifier IC2. The feedback network of IC2 includes a 0.15 µF capacitor which reduces the gain at high frequencies.

The 0.001 µF capacitor at the output of IC2 also loads the output at high frequencies and reduce them. Thus the resultant output has a large amount of low frequency (LF) noise.
A small amount of white noise due to the IC itself is produced at the output, but it can be ignored. Point B is an artificial center point created for IC1 and IC2. Point C is connected to the capacitor which reduce the gain of IC2 at high frequencies

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