H - Electricity – 02 – M
Patent
H - Electricity
02
M
H02M 3/04 (2006.01) H02M 1/10 (2006.01) H02M 3/137 (2006.01) H02M 3/335 (2006.01)
Patent
CA 2339538
The present invention is a switching power supply having efficient light load regulation at high input voltage. The power supply comprises a pulse-width modulator integrated circuit along with two separate voltage buses. A transformer is connected to the first voltage bus via a first primary winding and is connected to the second voltage bus via a second primary winding both primary windings have a predetermined number of turns proportional to voltages supplied by the two voltage buses. The power supply further comprises a pair of switches connected to the two primary windings and driven by the integrated circuit.
Mitel Knowledge Corporation
Mitel Networks Corporation
Sim & Mcburney
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