the Viper22A ICS with PWM control built on 350mA power LED driver circuit without insulation, without the use of the transformer was achieved. Design of series-connected 1W LED 350mA output current is limited to 3 pcs made to run.... Electronics Projects, Viper22A Power LED driver 350mA 3W "power electronic projects, smps circuits, smps projects, smps schematic, " Date 2019/08/04