Author Topic: -10v dc - dc converter repair advice needed  (Read 3025 times)

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Offline fzabkar

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Re: -10v dc - dc converter repair advice needed
« Reply #25 on: February 19, 2019, 03:48:40 am »
I believe the idea is to use a single "PDM1-S12-D5-S" module. According to the datasheet, the module's input and output are electrically isolated, so this modification should be feasible.

Connect the Vin and Ground pins on the input side of the module to 12V and ground on the PCB. Then connect the -5V pin of the module to the -10V rail of the PCB, and the +5V pin of the module to ground on the PCB. This assumes that the -10V components on the PCB draw less than 100mA (the rated current of the module).

https://www.cui.com/product/resource/pdm1-s.pdf
 

Offline microbored

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Re: -10v dc - dc converter repair advice needed
« Reply #26 on: February 19, 2019, 04:07:06 am »
Ahh, I understand now now!!!  Any thoughts why he suggested to use a 12V output with voltage regulator IC instead?  Thanks!
 


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