This reference design board is an offline wide-range power supply that incorporates the VIPer53-E, and is set up for secondary regulation by driving the PWM controller through an optocoupler. The switching frequency is set at 100 kHz and the total output power is 24 W.
This document describes the STEVAL-ISAQ09V1, a reference design board based on the ViPer53-E controller. It functions as an offline wide-range power supply designed for secondary regulation via an optocoupler driving the PWM controller.
The board is configured with a switching frequency of 100 kHz and delivers a total output power of 24 W. Key features include current mode control, adjustable limitation, high efficiency (75%), and various protection mechanisms such as short-circuit, overload, and thermal shutdown.
| Output Power | 24 W |
|---|---|
| Input Voltage Range | 90 to 264 Vac |
| Switching Frequency | 100 kHz |
| Efficiency | 75% |
The board accepts an input voltage ranging from 90 to 264 Vac.
The total output power is set at 24 W.