Ac delay angle control for energizing a lamp

Details Ac delay angle control for energizing a lamp Ac delay angle control for energizing a lamp

H - Electricity

05

B

H05B 37/02 (2006.01) H05B 41/14 (2006.01)

Patent

CA 2674965

A control circuit for a lamp. The control circuit is used in conjunction with an alternating current (AC) variable voltage power source to energize the lamp. The control circuit includes a voltage sensing component for sensing the voltage of an voltage input signal from the power source for energizing the lamp. The control circuit includes a controller configured to estimate a delay angle as a linear function of the sensed voltage. The control circuit includes an AC converter for modifying the voltage input signal according to the estimated delay angle to generate an AC voltage output signal having a constant root mean square voltage for energizing the lamp.

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