Switch volume control by op-amp IC
Switch press added – reduced pressure This circuit IC1 is IC op amp circuit connected to an Integrator circuit. Operation of the circuit. When the press switch S1 will have positive current flow from the power supply Through resistor R1 to charge the capacitor C2. As a result the output …
Timer set for 30 minutes by transistor
This circuit is based on learning of the discharge and charge of the C, which can be used as a timer circuit and can be applied in the off electrical appliances. The application has also put relay instead of LED can be enabled. This circuit is working as video below: …
Simple speaker overload protection circuit
This is simple speaker overload protection circuit. Generally the level of a signal that departs output of sound signal generator the all. The that get fix have standard same score be 1Vrms. But in now audio signal generator the all the that may produce come to exceed limitation standard of …
Boost up voltage for relay by BC558
Using relay general the majority then to use power supply that have DC Voltage with the value volt that specify on relay. For relay work but , if , we have no power supply that want to feed give relay. This circuit helps to give relay can work. From the …
Fan Speed over Ride Switch
If you get into trouble about the heat of notebook. Today I begs for to advise the way enhances the speed of the electric fan with Fan Speed over Ride Switch circuit. Normally the electric fan will begin to turn when 60 c temperatures by have voltage feed 2.0 v. …