Patent ID: 8773877
Filing Date: 2014-07-08
Classification: H02M,H05B

Abstract:
1. A power supply circuit for LED light circuit comprising: an input terminal to be connected to a commercial power supply; an input conductor connected to the input terminal; a winding connected to the input conductor; a plurality of output conductors connected to respective partial windings resulting from dividing the winding into a plurality of parts; a plurality of output terminals connected to the respective output conductors, each output terminal being independently connected to a LED light circuit as a load; a rectifier circuit, provided between the output terminals and the output conductors, converts an alternate-current voltage resulting from division in the respective partial windings into a direct-current voltage; and a current limiter circuit, provided at an output end of the rectifier circuit, limits a current flowing into the LED light circuit, wherein the output conductors are connected to the respective partial windings with an end part of the winding left as a margin, an input voltage is stepped down in the winding, and the stepped-down voltage is divided and output, and further wherein end-part windings left as a margin are configured to be connected in parallel.