If you need +12V and -12V, but all that's available is +12V, then this project is for you. The Inverting DC-DC Converter gives you -V out when you put +V in, and works over a range of voltages without adjustment. It's an easy-to-build voltage mirror that can supply over 100 mA without a significant drop in voltage.
Kit Includes:
1 – Printed Circuit Board (Size 1.25" x 3.75")
1 – 100K, 1/4W, 1% Resistor
1 – 301K, 1/4W, 1% Resistor
4 – 100K, 1/4W, 1% Resistors
4 – 1K, 1/4W, 1% Resistors
2 – 10K, 1/4W, 1% Resistors
1 – 220 µH Inductor
2 – 220 µF, 35V Capacitors
2 – 0.1 µF, 50V, Ceramic Capacitors
1 – 1 nF Film, 5% Capacitor
2 – 2N7000 MOSFET
1 – PNP Transistor
2 – 1 amp, 1N5819 Schottky Diodes
2 – CA3140 IC Op-amps
2 – Terminal Blocks
4 – 4-40 x 1/2 Bolts, Board Supports
4 – 4-40 x 1/2 Nuts, Board Supports
For an in-depth look at our Inverted DC-DC Converter, please see the article Build An Inverting DC-DC Converter.
A Partial Kit is Available: Inverting DC-DC Converter PCB
