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Home Radio and Electronics Electronics DIY Variable Bench Power Supply MK2

DIY Variable Bench Power Supply MK2

Variable Bench Power Supply MK2

 

An upcoming project based on this Instructable here.

A mock-up of what I would like to see the finished product look like. diy variable bench psu
   

So, it's been a while and I've finally gotten around to getting some work done to this project. I am using same enclosure as the DIY Bench top Power Supply I made up a few years ago.

20170321a 

 So I've used the same case as the DIY Bench Power Supply that I made last year. Mainly because I will be using it to supply power to this new power supply via the rear dual binding post outlet. 

I will make up a short lead to connect the two supplies together.

20170321b
The heatsink for the 60 watt boost converter fits neatly on the back with the PCB mounted on the inside of the case.  20170321c

The front side of the boost converter with the top right hand corner nipped off to access the mounting screw. Aside from this small mod the PCB fits in nicely.

I have the output of the boost converter set to 32.5 volts. This gives me up to 1.8 amps to play with, which is plenty for most applications. If I need more power I can use my GOOD WILL INSTRUMENT CO., LTD. Dual Tracking power supply.

 2017-03-28 12.56.07
Banana plugs in and the power supply cut-outs marked out.  20170321d
The back of the front panel with the power supplies mounted in and connected up ready to go.  2017-03-28 12.56.20

And the finished product.

I didn't mount a power switch as I didn't have enough room for it. And as it's powered from any 12 volt dc power source or the DIY power supply below it when it on the bench which has a power button, I didn't think it was that important.

 2017-03-28 12.58.34
   
   
   
   
   
   
   
   
   
   
   
   
   

 

So, it's been a while and I've finally gotten around to getting some work done to this project. I am using same enclosure as the DIY Bench top Power Supply I made up a few years ago.

 

Last Updated on Tuesday, 28 March 2017 20:22