This paper introduces two double output off-line non isolated SMPS based on the VIPerX2A-E family. The first SMPS is a Buck converter with two positive outputs and the second one is a Buck-Boost converter with two negative outputs.
This document introduces two double output off-line non-isolated switched-mode power supply (SMPS) designs based on the VIPerX2A-E family. The first design is a Buck converter providing two positive outputs, while the second is a Buck-Boost converter providing two negative outputs. Both designs operate with an extended input voltage range from 80 to 285 Vac and are suitable for small loads up to 6-8 W in industrial and home appliance applications.
| AC input voltage | 80 - 285 Vac |
|---|---|
| Output power (Buck) | ~ 1 W |
| Output power (Buck-Boost) | ~ 7 W |
| Switching frequency | 60 kHz |
| Output voltage (Buck) | +24 V and +5 V |
| Output voltage (Buck-Boost) | -24 V and -5 V |
The power supplies are operated with an extended wide range of the input voltage, from 80 to 285 Vac.
The Buck converter uses the VIPer12A-E device.
The Buck-Boost converter uses the VIPer22A-E device.