http://www.simplecircuitdiagram.com Free Simple Circuit Diagram Mon, 06 Feb 2012 04:23:39 +0000 en hourly 1 http://wordpress.org/?v=abc http://www.simplecircuitdiagram.com/2011/02/28/voltage-controlled-oscillator-for-commercial-fm-band/ http://www.simplecircuitdiagram.com/2011/02/28/voltage-controlled-oscillator-for-commercial-fm-band/#comments Mon, 28 Feb 2011 12:44:13 +0000 Rend http://www.simplecircuitdiagram.com/?p=2398 VCO (voltage controlled oscillator) is an electronic signal generator which produce a signal that has variable frequency depends on a voltage level at its control input. Many VCO circuits are based on ramp generator to produce a variable frequency output, … Continue reading →]]> http://www.simplecircuitdiagram.com/2011/02/28/voltage-controlled-oscillator-for-commercial-fm-band/feed/ 0 http://www.simplecircuitdiagram.com/2011/02/07/wien-bridge-sine-wave-oscillator-2/ http://www.simplecircuitdiagram.com/2011/02/07/wien-bridge-sine-wave-oscillator-2/#comments Mon, 07 Feb 2011 02:22:31 +0000 Rend http://www.simplecircuitdiagram.com/?p=2346 This is a Wien-bridge sine-wave oscillator circuit. This circuit uses negative-feedback stabilization to make sure the gain won’t go higher than unity to prevent signal distortion. The D2 and D1 will conduct when Negative peaks in excess of -8.5 V. … Continue reading →]]> http://www.simplecircuitdiagram.com/2011/02/07/wien-bridge-sine-wave-oscillator-2/feed/ 0 http://www.simplecircuitdiagram.com/2010/12/28/100mhz-varicap-oscillator/ http://www.simplecircuitdiagram.com/2010/12/28/100mhz-varicap-oscillator/#comments Tue, 28 Dec 2010 03:56:46 +0000 Rend http://www.simplecircuitdiagram.com/?p=2246 This is a 100MHz Varicap Oscillator circuit. This circuit can provide modulation signals less than 28V and frequency deviation of 28 MHz peak-to-peak. This circuit uses two variable-capacitance diodes which is connected to d-c bias and audio modulating signals in … Continue reading →]]> http://www.simplecircuitdiagram.com/2010/12/28/100mhz-varicap-oscillator/feed/ 0 http://www.simplecircuitdiagram.com/2010/11/12/basic-phase-shift-oscillator-1khz/ http://www.simplecircuitdiagram.com/2010/11/12/basic-phase-shift-oscillator-1khz/#comments Fri, 12 Nov 2010 08:00:12 +0000 Rust http://www.simplecircuitdiagram.com/?p=1779 Phase shift oscillators uses capacitors to shift the phase of a signal coming from the output of an amplifier. If the phase shifting match the frequency, then a positive feedback will be produced a continuous sine waveform. Here is the … Continue reading →]]> http://www.simplecircuitdiagram.com/2010/11/12/basic-phase-shift-oscillator-1khz/feed/ 0 http://www.simplecircuitdiagram.com/2010/11/12/low-distortion-wien-bridge-oscillator/ http://www.simplecircuitdiagram.com/2010/11/12/low-distortion-wien-bridge-oscillator/#comments Fri, 12 Nov 2010 07:44:20 +0000 Rust http://www.simplecircuitdiagram.com/?p=1776 This Wien bridge oscillator uses incandescent lamp to stabilize its amplitude. This amplitude stabilization gives a low distortion output.  Multiple frequency range selector gives flexible and fine adjustment for the frequency. Here is the schematic diagram of the circuit: The … Continue reading →]]> http://www.simplecircuitdiagram.com/2010/11/12/low-distortion-wien-bridge-oscillator/feed/ 0 http://www.simplecircuitdiagram.com/2010/05/10/sine-wave-oscillator/ http://www.simplecircuitdiagram.com/2010/05/10/sine-wave-oscillator/#comments Mon, 10 May 2010 08:37:57 +0000 Rend http://www.simplecircuitdiagram.com/?p=1104 This is a Sine Wave Oscillator circuit. This circuit as known as  amplitude-stabilized sine-wave oscillator. It can gives high purity sine-wave output down to low frequencies with minimum circuit complexity. This circuit has a several advantages such as it does … Continue reading →]]> http://www.simplecircuitdiagram.com/2010/05/10/sine-wave-oscillator/feed/ 0 http://www.simplecircuitdiagram.com/2010/02/11/wien-bridge-sine-wave-oscillator/ http://www.simplecircuitdiagram.com/2010/02/11/wien-bridge-sine-wave-oscillator/#comments Thu, 11 Feb 2010 02:39:11 +0000 Adam http://www.simplecircuitdiagram.com/?p=616 Getting the right amplifier loop gain is the major problem in producing a low distortion constant amplitude sine wave. However, we can solve this problem with Wien bridge sine wave oscillator. Here is the circuit : This circuit uses the … Continue reading →]]> http://www.simplecircuitdiagram.com/2010/02/11/wien-bridge-sine-wave-oscillator/feed/ 0 http://www.simplecircuitdiagram.com/2010/02/01/pure-sine-wave-generator/ http://www.simplecircuitdiagram.com/2010/02/01/pure-sine-wave-generator/#comments Mon, 01 Feb 2010 01:50:59 +0000 Adam http://www.simplecircuitdiagram.com/?p=527 This is a circuit that can generate 1kHz to 25kHz sine waves with a THD better than -80dB. This circuit consist of a 4th-order low-pass filter, a TTL counter and 8-channel analog multiplexer. Here is the circuit : The bipolar … Continue reading →]]> http://www.simplecircuitdiagram.com/2010/02/01/pure-sine-wave-generator/feed/ 0 http://www.simplecircuitdiagram.com/2010/01/14/single-op-amp-variable-sinewave-generator/ http://www.simplecircuitdiagram.com/2010/01/14/single-op-amp-variable-sinewave-generator/#comments Thu, 14 Jan 2010 01:01:31 +0000 Adam http://www.simplecircuitdiagram.com/?p=466 This is a sine wave generator circuit. It generates an adjustable sine wave betwen 15 Hz to 150 kHz. This circuit uses the principle of Wien-bridge oscillator, with multiple capacitor selection. Here is the circuit: To control the frequency, this … Continue reading →]]> http://www.simplecircuitdiagram.com/2010/01/14/single-op-amp-variable-sinewave-generator/feed/ 0