Application Notes

Unregulated Power Supplies

An unregulated power supply does not contain any form of regulating circuitry. Output load ‘regulation’ is determined by the inherent transformer impedance and circuit resistance. Output line ‘regulation’ is directly proportional to the AC input change. Unregulated power supplies are adequate for non-critical loads such as relays, solenoids, and lamps and are a lower cost alternative to regulated supplies.

Typical applications for an unregulated power supply
General purpose use - including, but not limited to:

• relays
• solenoids
• lamps
• actuators
• anywhere that good regulation and/or low ripple is not required

View our entire line of Unregulated Power Supply Models:

• AC-DC Single Output Unregulated Power Supply Models
• AC-DC Wide Adjust Output Unregulated Power Supply Models

Click here to view a table that compares a
switching power supply vs. a linear power supply vs. an unregulated power supply.