STEVAL-ISA117V1, Wide Range Isolated Flyback Demonstration Board, single output 12 V/4.2 W based on the VIPer16LN
参考设计 属于: STMicroelectronics
STEVAL-ISA117V1, Wide Range Isolated Flyback Demonstration Board, single output 12 V/4.2 W based on the VIPer16LN. This board implements a 4 W single-output wide range mains power supply set in flyback isolated topology, using the VIPER16LN, an off-line high voltage converter. The features include an 800 V avalanche rugged power section, PWM operation at 60 kHz with frequency jittering for lower EMI, current limiting with adjustable set point, on-board soft-start, a safe auto-restart after a fault condition and a low stand-by power. The device does not require a biasing circuit to operate because the IC can be supplied by an internal current generator, therefore saving the cost of the transformers auxiliary winding