Print: Power Supply Circuit Diagram

An extremely simple and cheap DC power supply with variable voltage (1.2-25 Volts) control. The circuit uses an LM317 integrated voltage regulator Ic.

A handy portable power supply with a variable output voltage of 15VDC. Mounted in a rugged bakelite case.

A very simple variable power supply with a DC output voltage adjustable from 1-3- Volts, with a maximum DC current of 5 Amps. Uses LM338 DC voltage regulator IC.

Circuit diagram for an ultra low-noise driver/supply circuit for white LEDs, using the IC LTC3201. Ensures a stable brightness in white LED driven items.

Compact positive (K124) and negative (K125) adjustable power supply +/-

This is a practical power supply for all your projects. It provides 6 different outputs between 6 and 20VDC @ 500mA.

A very basic power supply that can be adjusted over a range of about 1.5 to 35 volts DC. If you add a heat sink (included), you can run it as hot as 2 Amps output; otherwise about 60 mA @ 12 volts. This is a text book circuit using an LM317, which is a 3

A very basic power supply that can be adjusted over a range of about 1.5 to 35 volts DC. If you add a heat sink (included), you can run it as hot as 2 Amps output; otherwise about 60 mA @ 12 volts. This is a text book circuit using an LM317, which is a 3

Variable-voltage DC power supply circuit. The output DC voltage is adjustable from 0.7-24V, with current limiting range from 50mA up to 2 Amps. Main transistor is the 2N3055.

Provides 3 amps current at 3-30 Volts DC. Reduces ripple voltage to almost non-existant.

PCB plans and circuit diagram (schematic) for what appears to be an extremely nice 100 watt guitar amplifier. Includes preamplifier and power amplifier circuit diagram and PCBs

Build this educational Deluxe Bench DC Power Supply Kit

Build this educational Deluxe Bench DC Power Supply Kit

This is a practical battery eliminator for your projects. This is a basic power supply using two 7805 regulators; input up to 20 VAC from a transformer. There are two outputs; one regulated at 5 VDC, and the other one is variable. Includes plastic case. T

Metal detectors a tons of fun. These metal detector electronic circuits will enable you to go hunting for all kinds of cool stuff, wherever you like!

Using a PIC 16C71, a crystal, 8 resistors & 4 capacitors this kit will independently control up to 4 servo motors. We do not supply the potentiometers or servo motors. (We used a Futaba FP-S148 for out tests.) 5V DC power supply required. Full instruction

Shows the pins and wiring instructions for creating an RS-232 Null Modem for your PC.

Compact negative adjustable power supply

USB Flash PIC programmer