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Archive for the ‘Oscillator’ Category


More circuits about oscillator, pulse, frequency , and others.


 Digital logarithmic sweep signal generator circuit

Wednesday, October 22nd, 2014

This is a Digital logarithmic sweep signal generator circuit by use the average digital, It is designed to use together with the frequency generator by voltage controller. How it works From the circuit in figure 1 is the 14-bit binary counter circuit, that input is synced with the output of oscillator generator circuit. Then, the […]


 Automatic duty factor controlled circuit

Saturday, October 11th, 2014

We can use the schmitt trigger to generate the simple square wave. The duty factor of output waveform will be determined by the input waveform. But the threshold level is the importance. In Figure 1 will have the output while input waveform as Figure 2 cannot have output. Figure 1 Automatic duty factor controlled circuit […]


 Cheapest signal cleaner circuit

Monday, September 29th, 2014

Here is the simple low noise filter circuit for any FSK signals that weak and have noise. This use few parts so easy and cheap. Fig 1: The schematic of this project As Figure 1 is the schematic diagram. This circuit include the low filter circuit through R1 and C2, the frequency cut off at […]


 Wien bridge oscillator circuit

Wednesday, September 17th, 2014

This wien bridge oscillator circuit which is normal,low distortion and can easily adjust the resonance frequency that depends on the pair of the resistors (R) and capacitors (C). Which we can calculate by the formula. F = 1/2 p RC In this circuit as Figure 1 the oscillator are based by the R that include […]


 The Filter circuit for the Scratch and Rumble Noise

Wednesday, July 23rd, 2014

If a friend gets into trouble about the noise. Try out this circuit before, may like. It is Filter the Scratch and Rumble Noise Circuit. That make a friend feels annoyed very the character of the circuit filters this frequency , use , Resistor , and , Capacitors , or , RC Filter that often […]


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