Simple load-driving circuit capable of driving plural loads according to given priority order
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United States of America Patent
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-
Jun 7, 2005
Grant Date -
Jul 29, 2004
app pub date -
Jan 16, 2004
filing date -
Jan 21, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A load-driving circuit capable of driving a plurality of loads based on a priority order endowed therewith is provided. The load-driving circuit comprises a first load 3, a first driving switch 1 for driving the first load, a second load 4, a second driving switch 2 for driving the second load, first switching means 5 being turned on when the first driving switch is switched to a position where the first load is driven, second switching means 6 being turned on when the second driving switch is switched to a position where the second load is driven, and third switching means 7 for disconnecting the first load from the grounding terminal when the first switching means 5 and the second switching means 6 are turned on at the same time.
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