Adaptive timing for high frequency inverters
地域：
CA
CA Cupertino
摘要
A method of adaptively controlling dead time between turn off of a first switching device of an inverter and turn on of a second switching device of the inverter that is a counterpart of the first switching device can include: monitoring a plurality of switching events of at least one of the first and second switching devices, storing for each monitored switching event an indication whether a dead time associated therewith permitted optimal switching, and adaptively controlling the dead time responsive to the stored indications. Monitoring a plurality of switching events of at least one of the first and second switching devices can further include sampling an output voltage of the inverter and comparing the sampled output voltage to one of a high reference voltage corresponding to a high inverter rail voltage and a low reference voltage corresponding to a low inverter rail voltage.
說明書
Adaptively controlling the dead time responsive to the stored indications can further include decreasing the dead time responsive to one or more indications that the dead time is too long and/or increasing the dead time responsive to one or more indications that the dead time is too short. One or more indications that the dead time is too long can be a majority of the stored indications, a supermajority of the stored indications, or a selected number of sequential indications that the dead time is too long. One or more indications that the dead time is too short can be a majority of the stored indications, a supermajority of the stored indications, or a selected number of sequential indications that the dead time is too short.
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