Power supply

H - Electricity – 02 – M

Patent

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Details

321/27, 321/83

H02M 1/08 (2006.01) H02M 3/335 (2006.01) H02M 3/337 (2006.01) H02M 3/338 (2006.01) H02M 7/217 (2006.01)

Patent

CA 1085917

ABSTRACT A power supply provides a low-level DC voltage to one or more DC load circuits by first rectifying either of the two standard AC voltages and thereafter reducing the rectified AC voltage to the low-level DC voltage. The reduction of the rectified AC voltage to the low-level DC voltage is accomplished by a power transformer which is switched on or off by a pair of switching transistors. The switching transistors are activated by a control transformer operating in combination with a control circuit. The control circuit timely produces various pulse conditions in the control transformer which turns the switching transistors on or off in a prescribed manner.

285628

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