This is daylight sensor switch circuit, for control load turn on when have sunlight. use simple circuit LDR,transistor,relay and can use with 12V supply
The digital clock circuit that electronic amateurs are most interested. And The clock ICs that most popular are LM8361, MM5387,
The Simple long duration timer circuit using OP-AMP, If build the RC timer only that long time delay we need too many resistors and capacitors may be error
This dynamic compressor circuit that The reduction rate of signal up to 20 dB at input between 100 mV to 10 volts. This circuit does not use external power
This power outage alarm circuit can be used to prevent a power failure. Example: Microcomputer systems. This circuit will send logic pulse "1" shortly
Here is a digital to analog converter circuit for control DC motor speed. We control easily a motor to stop and rotate. If need to control it on linear.
This is the high quality 12V-24V PWM Motor controller circuit, at current up to 20A,using TL494-IRF1405 for working with soft start, adjust pulse frequency