DC1817B is a LT3798 isolated no opto-coupler flyback controller with PFC demonstration board. Demonstration circuit 1817B is an off-line isolated flyback converter featuring the LT®3798. The demo board provides a single constant-voltage output of 24V at 2A. It is optimized to operate over a wide AC input voltage range (90VAC to 265VAC, 47Hz to 63Hz). Output voltage accuracy stays within ±5% over the whole input voltage and load range. It provides a high power factor (<gt/>0.95) enabling the design to be used worldwide. It is also designed to comply with the IEC 61000-3-2 Class D harmonics standard and the EN55015B conducted EMI standard.