Free Simple Circuit Diagram
Balanced signal consist of two lines that have opposite phases, and should be received with differential input receiver. Balanced signal is employed in many telecommunication techniques to improve transmission system’s noise immunity. Balanced signal is usually transmitted in twisted pair cables. With twisted pair, the noise exposure is expected to be equal for both lines in order to cancel each […]
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Infrared transmitter and receiver circuit shown in the schematic diagram below can be used as remote control. The transmitter is basically an oscillator circuit, and the frequency can be adjusted using R1 potentiometer (or trimmer pot). This oscillation makes sure if the signal can be distinguished from other source by the receiver. The receiver is actually a bandpass filter which […]
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This water level sensor (detector) circuit uses a standard NAND logic gate to produce oscillation and to detect the water level. Oscillation is included inside this circuit to provide alternating current (AC) source for probe electrodes, to achieve a corrosion free operation. With AC source, the process of electrolysis is done in both direction, neutralizing the process of ionic transfer […]
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This DC to AC Inverter uses inverter gates for the oscillator part, then use one of the gate to invert the produced square wave signal. With push pull operation, the primary coil of the transformer is driven with alternate direction, with the help of H bridge of power transistors (MOSFET) 2SJ471 and 2SK2956. Using the transformer shown in the schematic […]
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