This board is an off-line wide range dual output general-purpose power supply which operates from a 90 to 264 Vac input and delivers up to 24 W through two outputs (5 V and 12 V). The board is configured for secondary regulation with optocoupler feedback.
Other output voltages can easily be attained by changing the transformer and a few components on the board.
Transformers are readily available for the following configurations:
- 5 V / 12 V
- 5 V / 15 V
- 5 V / 24 V
This reference board has an efficiency of 78% at 115 Vac at full load for both outputs. During standby, the board consumes less than 1 W operating in burst mode, thus meeting Blue Angel norms.