STMicroelectronics’ STCH03 offline Pulse-Width Modulation (PWM) controller combines high integration with accurate constant-current output using primary-side regulation enabling economical mobile chargers, power adapters, or auxiliary supplies to meet stringent eco-design limits for average efficiency and standby power. At heavier loads, the STCH03 maximizes efficiency by operating in quasi-resonant mode with zero-voltage switching (ZVS) controlled by detecting transformer […]
stmicroeletronics
Off-line converters incorporate logic-level primary MOSFET for efficient 5-V output
The VIPer11 off-line converter with embedded 800V avalanche-rugged MOSFET from STMicroelectronics enables equipment makers to design tougher auxiliary power supplies and power adapters. Its 26Vdc drain-start voltage allows an ultra-wide line input voltage range and it enhances flexibility in numerous consumer and industrial applications. The logic-level primary MOSFET enables the VIPer11 to operate with a wide supply […]