A very simple high efficiency Gu10 led light bulbs driver power supply circuit that can be used as a LED driver for GU10 lamp can be designed using this schematic circuit.This high efficiency Gu10 led light bulbs LED driver is designed to drive 12 V at 0.3 A from an input voltage range of 90 VAC to 265 VAC using few external components. This Gu10 led light bulbs driver power supply uses the LNK605DG IC from the Switch-II family by Power Integrations. The LNK605DG provides a sophisticated range of protection features including auto restart for open control loop and output short-circuit conditions. As you can see in the circuit diagram , this LED driver require few external electronic components .The LNK605DG Ic from Switch-II family is an integrated controller plus 700 V power MOSFET intended for use in LED driver or charger applications. Gu10 LED Light Bulbs Driver Circuit Diagram The rectified and filtered input voltage is applied to one end of the primary inding of T1 transformer and...