Driving control device of brushless motor
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United States of America Patent
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Apr 14, 2015
Grant Date -
Aug 15, 2013
app pub date -
Feb 6, 2013
filing date -
Feb 9, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A driving control device of a brushless motor includes an inverter circuit having: first arm-side switching elements that are connected between respective phases of respective armature coils of the brushless motor and one terminal of a power supply; and second arm-side switching elements that are connected between respective phases of the respective armature coils and the other terminal of the power supply, and a control unit, wherein, in a short-circuit braking according to a short-circuit braking signal, the control unit outputs a signal of turning off all the first arm-side switching element and outputs a signal of controlling the at least one of the second arm-side switching elements to perform a switching operation and turning on the other second arm-side switching elements.
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