0-30V 0-3A Variable Bench/Lab PSU

I have started work on a Bench/Lab power supply design.

The following are Required features:

• 0-30V variable output voltage
• 0-3A Current Limited
• Current Limit notification (by LED)
• Output Enable button with notification LED
• Display set and actual output voltage and current.
• Static 5V output
• Static 3.3V output
• Display current flow of 5V and 3.3V circuits.
• USB Charge port
• USB PC connection port
• PC controlled via USB
• Internal Temperature sensor and PWM fan for quite operation.

Optional features

• LAN Connection to connect multiple PSU's together for Parallel or Serial use or Synchronised outputs
• Mode switch & LED for extended user interface controls

Design Requirements

• PSU Should be fully modular to allow for expansion or alternative uses or replacement of required modules with alternatives as required.
• PSU should be as efficient as possible
• PSU should be as cost effective as possible
• PSU should be as small as possible
• PSU should be as quiet as possible

Gineer - Variable Bench PSU #1  

 

Gineer - Variable Bench PSU #2 Raw Power