Power converter
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United States of America Patent
Stats
-
Jun 29, 2021
Grant Date -
Aug 6, 2020
app pub date -
Jan 8, 2020
filing date -
Jan 31, 2019
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A controller and a plurality of driver circuits may be configured to operate selectively either in a normal mode or in a diagnostic mode. In the normal mode, the controller is configured to transmit a drive signal to each driver circuit via a corresponding drive signal line. Each driver circuit is configured to drive corresponding switching element(s) in response to the drive signal and is further configured to output a failure signal when the driver circuit detects a failure related to the corresponding switching element(s). In the diagnostic mode, the controller is configured to sequentially transmit a request signal to the driver circuits via their corresponding drive signal lines, and each driver circuit is configured to output the failure signal in response to the request signal in a case of having detected the failure during operation in the normal mode.
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