Dual Power supply from single battery
Need of dual power supply for certain circuit is necessary, if you…
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Electronic horn circuit
This simple circuit helps to make louder horn for vehicle or alarm,…
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Cooling Fan speed control circuit
As a Electronic engineer we know the importance of proper heat dissipation from the electronic device…
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IC 741 tester circuit
When we use ICs in the circuit some times we cannot get desired…
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LED Voltmeter circuit
LED voltmeter circuit constructed by operation amplifier IC741, here the op-amps are acts as…
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Low Voltage Relay driver
This low voltage relay driver circuit constructed by using IC MAX 4624. This…
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Main Power Interruption Alarm
This main power interruption alarm circuit constructed with few simple components and…
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Main power supply Indicator circuit
This circuit provides the status about the presence of main power supply through visual and audible…
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Over voltage protection switch circuit
This Over voltage protection switch circuit constructed with TL431 adjustable shunt…
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Power saver circuit using PIR sensor
Many times we forgot to turn off some home appliances when it not…
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