1.25 to 27V Adjustable Power Supply circuit using NE555 and LM723
5G14 based 3 to 6V adjustable power circuit
5G14D based 24V 19A power supply circuit
5V 1A AC Adapter circuit
5V input 13 to 35V and 20A output programmable power supply circuit
5V to 12V boost power supply circuit using MAX761
6W 12VDC power supply adapter circuit
12v-230v inverter circuit
12V lead-acid battery charging circuit
18V or 25V to 5V DC power supply circuit with three output