MOTOR CONTROL APPARATUS
An inverter circuit is provided for a plurality of coils and includes switching elements forming switching element pairs in correspondence to each phase of the coils. Current detection sensors detect currents flowing low-side FETs, respectively. A control circuit has a failure detection section, whi...
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Main Author | |
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Format | Patent |
Language | English |
Published |
13.10.2011
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Subjects | |
Online Access | Get full text |
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Summary: | An inverter circuit is provided for a plurality of coils and includes switching elements forming switching element pairs in correspondence to each phase of the coils. Current detection sensors detect currents flowing low-side FETs, respectively. A control circuit has a failure detection section, which detects arm short-circuit failure of the element pairs based on current values detected by the current detection sensors at timing when one or the other of all the low-side FETs and all the high-side FETs are turned on and turned off, respectively. |
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Bibliography: | Application Number: US201113080929 |