A current - voltage conversion circuit

This is a simple 555 timer circuit suitable for oscillating applications. To slow down the strobe effect, replace the 220 µF capacitors with 1000 µF capacitors. For a faster strobe effect, use a 150 µF capacitor. Additionally, R1 can...

Automatic lights using a light sensor, the TWH87SL power switch integrated circuit consists of a first input terminal TWH8751 connected to the positive terminal of the power supply. The output pin state is determined by the strobe terminal, which...

An alternative approach to utilizing operational amplifiers (op-amps) for power supply regulation is presented. This method necessitates an additional winding on the power transformer to provide the op-amps with a bipolar voltage of +/- 8 volts. The negative voltage...

Design a circuit using a power MOSFET to replace the NTC thermistor that many Mag623 users employ to prevent their bulbs from flashing. Although inexpensive and easy to connect, NTCs run quite hot, are affected by ambient temperature, require...

The electromagnetic ring launcher consists of four subcircuits: a clock circuit utilizing U5, a 555 oscillator/timer configured for astable operation; a countdown/display circuit incorporating U3, a 74190 synchronous up/down counter with BCD outputs set for countdown operation; U4, an...

The switch shut-off time delay circuit consists of a timer, optocouplers, a bridge SCR, and an SCR AC switch. When the control button is released, it allows the motor or other AC power to remain active for one hour....