A simple automatic bedroom lamp timer circuit has been described here to switch off your bedroom lamp after a fixed predetermined time. The use of the reliable 741 IC makes […]
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3 Accurate Refrigerator Thermostat Circuits – Electronic Solid-State
Interested to make an accurate electronic thermostat for your refrigerator? The 3 unique solid state thermostat designs described in this article will surprise you with their “cool” performances. Design#1: Introduction […]
2 Simple Earth Leakage Circuit Breaker (ELCB) Explained
The discussed Earth leakage circuit breaker diagrams will monitor the leakage current level of the earthing line of your house electrical sockets and will trip the appliances as soon a […]
AC Millivolts Meter Circuit Using IC 741
In this article we study an op amp based millivolt meter circuit designed to measure AC millivolts accurately, let’s learn the details from the following explanation. The circuit shown below […]
Make an Electronic Candle at Home Circuit
The proposed electronic candle circuit does not use wax, paraffin or flame, yet the device perfectly simulates a conventional candle. Basically it incorporates ordinary electronic parts like LED and battery. […]
3 Tested 220V High and Low Voltage Cut OFF Circuits Using IC LM324 and Transistors
An AC mains high/low cut-off device will cut off or disconnect the mains supply from home electrical whenever a high voltage or low voltage situation is detected. In this way […]