When there is a fire breakout in the room the temperature increases. This simple ultra compact and low cost fire alarm circuit will senses the heat and activate the alarm.Transistor BC177 (Q1) is used as the fire sensor here. When the temperature increases the leakage current of this transistor also increases. The circuit is designed [...]
This is a simple circuit diagram to make a flashy light application. You can use it for your bike, Christmas tree, lamp reminder or similar applications. Using CMOS hex inverter IC CD4069UB offering sequential switching outputs that may be used to control 200 LEDs (4 channel – 50 LEDs per channel), driven directly from power [...]
This circuit diagram used to low regulated voltage from the AC line. The zener diode serves as a regulator and also provides a path for negative half cycle current when it conducts in the forward direction. In this circuit diagram, the output voltage is about 5Volts and provide over 30mA with ripple about 300mV. Use [...]
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