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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.
Photo: Variable Power Supply Kit Variable Power Supply Kit
A handy portable power supply with a variable output voltage of 15VDC. Mounted in a rugged bakelite case.
0 Comments - in DC Power Supplies
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.
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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.
Photo: Positive Adjustable Power Supply Positive Adjustable Power Supply
Compact positive (K124) and negative (K125) adjustable power supply +/-
Photo: Universal Wall Adapter Power Supply Universal Wall Adapter Power Supply
This is a practical power supply for all your projects. It provides 6 different outputs between 6 and 20VDC @ 500mA.
Photo: Variable Power Supply with Transformer Variable Power Supply with Transformer
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
Photo: LM317 Variable Power Supply LM317 Variable Power Supply
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
0 Comments - in DC Power Supplies
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.
Photo: 3 Amp Variable DC Power Supply 3 Amp Variable DC Power Supply
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
Photo: Bench AC/DC Power Supply Kit Bench AC/DC Power Supply Kit
Build this educational Deluxe Bench DC Power Supply Kit
Photo: Bench DC Power Supply Kit Bench DC Power Supply Kit
Build this educational Deluxe Bench DC Power Supply Kit
Photo: Hobby Power Supply Kit using LM7805 Hobby Power Supply Kit using LM7805
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!
Photo: Servo Motor Driver Servo Motor Driver
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.
Photo: Negative Adjustable Power Supply Negative Adjustable Power Supply
Compact negative adjustable power supply
Photo: USB PIC Programmer Kit / Circuit Diagram USB PIC Programmer Kit / Circuit Diagram
USB Flash PIC programmer