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US 5,703,447 AGranted
Battery voltage controller for DC motor
AssigneeFunai Electric Co., Ltd.
InventorYoshio Higuchi
Life of this patent
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Abstract
A driver for driving a loading motor of a single-unit video camera-recorder. In the driver, a DC voltage supplied from a battery is boosted by a DC/DC converter, and the boosted DC voltage is supplied to the loading motor through a switch unit in which the polarity of the boosted DC voltage is switched.
Claims5
A driver for driving a loading motor of a single-unit video camera-recorder, comprising:
- a battery;
- a DC/DC converter for boosting and outputting a DC voltage supplied from said battery;
- a switch unit having a predetermined voltage loss for switching a polarity of the DC voltage received from and boosted by said DC/DC converter;
- and
- a loading motor to which the boosted DC voltage from said DC/DC converter is supplied through said switch unit, said loading motor being provided with a reduction unit for reducing a rotational speed of said loading motor at a predetermined reduction ratio;
- said DC/DC converter boosting said DC voltage by an amount corresponding substantially to said voltage loss.
3 more elements
Dependencies are inferred from the claim text.