Power supply operable with wide input range

Details Power supply operable with wide input range Power supply operable with wide input range

H - Electricity

02

M

H02M 1/10 (2006.01) H02M 7/219 (2006.01)

Patent

CA 2280382

An arrangement provides a power supply for low voltage circuits that is connected to receive and store energy from a power electronics switch that is connected to an alternating current supply. The power supply is operative over a wide range of input and regardless of the operating status of the power electronics switch. For each half cycle of the alternating current which the power electronic switch is to be rendered conductive, the arrangement delays for a predetermined time duration the control of the power electronic switch at the zero crossing of the half cycle. During the predetermined time duration, the power supply charges an energy storage device with sufficient energy to supply the low voltage circuit until the next half cycle.

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