Regulated dual dc power supply

Details Regulated dual dc power supply Regulated dual dc power supply

H - Electricity

02

M

321/81

H02M 7/757 (2006.01) H02M 3/156 (2006.01)

Patent

CA 1139837

REGULATED DUAL DC POWER SUPPLY ABSTRACT OF THE DISCLOSURE A dual section power supply, one section for supplying high voltage dc power and the other section for supplying low voltage dc power, are each connected to a common ac source. The high voltage section employs a phase-controlled rectifier, the control circuit for which employs logic signal development using timer techniques dependent on the amplitude of voltage deviation from the intended regulated output level. Each of two low voltage sections employs a power switch controlled by sampling and pulse steering techniques to effect fixed high frequency, variable duty cycle switching. An inhibit input is supplied from each of the low voltage sections to the high voltage section to prevent a high voltage output to the load in the absence of low voltage development.

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