A high efficiency power controller comprising of a driver circuit to
convert to direct current (DC) voltage from alternating current (AC)
voltage is used for drive solid state lighting (SSL) including light
emitting diode (LED) and organic light emitting diode (OLED). The driver
circuit is comprises of an AC-DC limited current unit, sensor processor,
signal generator, feedback controller and SSL lamp module, which converts
the AC supply voltage to a DC voltage by using a negative feedback
current and voltage limiting circuit for powering SSL. The invented
driver circuit operates at high efficiency with low power consumption.
The current and voltage feedback circuit mode from current, voltage,
light intensity and thermal temperature for SSL possesses reliable DC
power driver without any flash during lighting.