DK935 series is an original side feedback flyback AC-DC switching power conversion chip. The 850V high voltage power triode and high voltage constant current start circuit are integrated inside the chip. The chip also contains the original side feedback constant current, constant voltage control and self-power supply circuit, and has the function of output cable compensation. This chip adopts high integration CMOS circuit design, peripheral components are few, which can effectively reduce the cost of the scheme. The DK935 adopts SOP-7 encapsulation.

DK910 is an original side flyback AC-DC switching power control chip with integrated 700V high voltage switching power tube and primary Stage peak current detection circuit, the chip also contains the original side feedback constant current, constant voltage control and self-supply circuit, and has the output cable supplement Compensation function, the chip uses highly integrated CMOS circuit design, peripheral components are very few, transformer design is simple, isolated output circuit A transformer requires only two windings.