OEM PSU-2 Power Supply Module

This PSU is based on a common design using variable precision regulator i.c.s and can be configured to provide dual outputs in the range of +/-5V to +/-20V. The standard offerings are +/-12V and +/-15V

Some of the benefits of a 723 based design over those using a simple fixed regulator design using devices such as the 78xx/79xx are:-

  • MUCH lower output noise,
  • Better load regulation, and
  • Better line regulation

Specification

  • Output current: in excess of 800mA per rail
  • Current limiting at around 1.2A
  • The pcb measures 133mm x 88mm

PSU-2 Schematics PSU-2 Build Guide Suggested Transformer Connections

 

! WARNING !
We do NOT recommend readers build their own power supply unit unless they are
fully competent and aware of the dangers of working with mains power.
There are a number of safety issues that MUST be complied with to ensure that no harm
comes to yourself or anyone else coming in to contact with your unit.

Email:  elby_designs@ozemail.com.au
Copyright 2000. All rights reserved.     Revised: March 3, 2015