Copy of HRI30-50WCCT-CUT-R1 SCH PG01 ascii

flyback , BP3619 is a single-stage flyback APFC controller that uses 
FB
 SCP
 internal control circuit of the chip starts working. When the 
primary-side feedback constant voltage control. It is mainly 
used in applications that require high power factor and 
constant voltage output. BP3619 adopts primary-side 
feedback CV control technology, which does not require 
secondary-side feedback optocouplers, and can achieve 
high-precision constant voltage output with only a few 
peripheral components. It has built-in PF and THD 
compensation, which achieves high PF and low THD 
performance.