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A Digital DC Power Supply (programmable bench power supply unit)

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mailus

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This bench power supply unit is less comlex than most other circuits but has a lot more features:

The display shows the actual measured values for voltage and current.

The display shows the pre-set limites for voltage and current.

Only standard components are used (no special chips).

Only one power source is needed (no separate negative supply voltage for operational amplifiers or control logic)

You can completely control the power supply from your PC. You can read current and voltages and you can set them with simple commands. This is very useful for automated testing.

A small button pad is available to directly enter the desired voltage and max. current.

It is really small but powerful.



the original file was taken from
http://tuxgraphics.org/electronics/200707/bench-power-supply-unit.shtml
 

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