A microcontroller based bench DC power supply unit: Small but very advanced

Double sided main board + board for key pad

These are the components and the printed circuit board to build a bench power supply unit similar to the on described in the article: "A digital DC power supply unit"

This kit includes:

Documentation: pinout description of the components, circuit diagram, assembly instructions
Two professionally printed circuit boards (epoxy board): the main board (53x88 mm) and one pcb for the key-pad (27x46 mm). Double sided boards, gold plated.
Mechanical parts: 1 x M3x15 mounting screw and 1 x Insulation-pad for power transistor
Capacitors: 1 x 470μF, 3 x 0.1μF, 1 x 47nF, 1 x 47 nF or 100nF, 1x 10nF or 47nF
1 x 5 pin ISP connector
Diodes: 1 x 1N5400, 1 x 1N4004
Transistors: 1 x BD245B, 1 x BD137, 1 x BC547B, 1 x BC557B
Resistors: 12 x 4K7, 14 x 10K, 1 x 5K6, 3 x 1.5 Ohm 2W, 1 x 820 Ohm, 1 x 100 Ohm, 1 x 680 Ohm, 6 x 470 Ohm, 2 x 1K, 1 x 68K
5 x mini push button
1 x 7805

This kit contains a completely re-designed board and improved circuit (compared to the original 2005/2006 version).

Note: You will also need a tuxgraphics 16x2 display, one atmega8 microcontroller and a transformer with rectifier+capacitor (see chapter "Power sources" for details).

price: 20.00 Euro [convert_currency]

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