Rechargeable/portable multi-voltage dc power supply

Details Rechargeable/portable multi-voltage dc power supply Rechargeable/portable multi-voltage dc power supply

H - Electricity

02

J

H02J 7/34 (2006.01) H02J 7/00 (2006.01) H02J 7/02 (2006.01) H02M 3/00 (2006.01)

Patent

CA 2084833

RECHARGEABLE/PORTABLE MULTI-VOLTAGE DC POWER SUPPLY ABSTRACT OF THE DISCLOSURE A rechargeable/portable multi-voltage DC power supply includes an Ni-Cd rechargeable battery set connected to a switching power supply converting circuit, a pulse width modulation circuit, and a filter circuit for providing a regulated output voltage from the filter circuit. A button switch cooperates with a selection circuit and a feedback ratio circuit for selecting a specific output voltage from a plurality of available output voltages. A plurality of light emitting diodes are connected to the selection circuit for indicating the value of the output voltage.

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