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Electronics => Projects, Designs, and Technical Stuff => Topic started by: gevv on December 25, 2020, 10:20:14 am

Title: 0-30V 0-10A Power Supply Project
Post by: gevv on December 25, 2020, 10:20:14 am
Hi,

A laboratory power supply offers an indispensable set for both the professional

and the amateur. This power supply is short-circuit protected and infinitely variable from 0 to 30V

and from 0 to 10A.

Velleman k7200  POWER SUPPLY TECHNICAL DATA


- Output voltage variable from Ov to 30V.

- Fine tuning over 1 V

- Output current limiting device infinitely variable from 0 to 1 OA.

-LED (l ight emitting diode)-indication of current limitation

- Output current: 8A. continuous/1 OA. peak

- Short-cicuit protected

-Ripple maximum: 0.5mV RMS

(https://i.ibb.co/qjBrQJz/new-k7200-pcb-desing-0-30v-0-10a-power-supply.jpg) (https://ibb.co/h9smzYk)
(https://i.ibb.co/xGh7DN5/0-30-V-0-10-A-VELLEMAN-K7200-POWER-SUPPLY-NEW-PCB-BOARD.png) (https://ibb.co/5vTR6Pc)
(https://i.ibb.co/8xbV9Kp/0-30v-laboratory-power-supply-with-current-control.png) (https://ibb.co/4S2xpmG)

https://youtu.be/6wTsgXGJ5CY (https://youtu.be/6wTsgXGJ5CY)

Velleman k7200  PSU


source:   elforum.info (https://bit.ly/3kQEzAb) (fixed error in pcb drawing and  re-edited pcb)
Title: Re: 0-30V 0-10A Power Supply Project
Post by: coromonadalix on December 25, 2020, 01:36:58 pm
This design had many variants like this one (attached file) this one is a 30vdc 10 amps too.


BUT  if i recall  it doesn't drop all the way to zero volts,  you need to have an -1.2 volts supply added on the voltage potentiometer,  it's inherent to the 723 design