Free Simple Circuit Diagram
One example of the phase shift oscillator is Bubba oscillator. This oscillator gets 45 degree phase shift for each section from quad op-amp package. The result is excellent d(phase)/d(t) to obtain very low frequency drift. The circuit is shown below: 45 degree phase shift is obtained from Each RC section. The alternating section generate a low impedance quadrature output. The […]
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Waveform A is timing diagram that shows A split-phase data signal. It consist of a series of binary digits that occur at a periodic rate. Duration of each bit and the periodic bit rate is constant but the weight of each bit, 0 or 1, is random. To detect and process the incoming signal, we need a clock that is […]
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Hydrophone is a tool like microphone, but this tool is used in the underwater environment. When used to pick up a sound on the air then this tool becomes less sensitive because it’s mechanical-acoustical properties is designed to match the Acoustical impedance of water. Circuit shown in this article is the hydrophones of a low noise amplifier with DC-servo. To […]
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Live-line detector is a circuit that detects the presence of a live mains conductor circuit operation: capacitive coupling between the live conductor and the probe will clock the counter when this unit was around a live conductor. And then the counter causes the LED to flash 5 times per second. It can occur due to the 4017 IC divides the […]
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