STEVAL-VP318L1F SSR Flyback Converter Reference Design
Author: EIS Release Date: Jan 12, 2021
STMicroelectronics' 15 V / 1.2 A SSR flyback converter is based on the VIPer318L HV converter
STMicroelectronics' compact 15 V / 18 W SSR isolated flyback converter evaluation board features universal 85 VAC to 265 VAC input, minimal BOM, high efficiency, low stand-by consumption, tight line and load regulation, and configurable input overvoltage and undervoltage protections. The design is based on the VIPer318L offline high-voltage converter with 800 V avalanche-rugged power MOSFET, PWM current-mode control, fixed 60 kHz switching frequency with jittering, and burst mode for light load management.
Features
- Universal input mains range: 85 VAC to 265 VAC
- Frequency: 50 Hz to 60 Hz
- Output voltage: 15 V
- Output current: 1.2 A
- Stand-by mains consumption: <55 mW at 230 VAC
- Average efficiency: >85%
- Tight line and load regulation over the entire input and output range