Free Simple Circuit Diagram
A diode bridge, a step down transformer a linear regulator(U1) and some filtering capacitors can be used to build a Linear power supply. This circuit has some advantages such as this circuit has high output current and can give multiple output voltages easily. However it has some disadvantages like this is high standby losses, expensive circuit, and bulky size of […]
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Capacitive power supply is one variation of uninsulated AC to DC adapter. This circuit consist of resistor, capacitors, diode and zener diode. This circuit will allow the constant voltage to across C1. The input current’s average should be equal to the average value of the output current, to maintain a constant voltage that across C1. Diode D2 is used to […]
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This is a schematic diagram of a micropower voltage-controlled oscillator circuit. This circuit can generate square and triangle wave outputs and only need 50µA from a single 5 V supply. This circuit consist of combination of an inexpensive quad CMOS switch and two OP90s. Here is schematic diagram of the the circuit : The integrator in this circuit is A1. […]
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A schematic diagram of a micropower single-supply instrumentation amplifier circuit is shown below. This circuit only need 15µA of current and can give over 110dB of common rejection. A single amplifier can provide differential to single-ended conversion with excellent common mode-rejection because feedback is to trim pins rather than to the inverting pin. Here is the schematic diagram of the […]
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