Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 9, 2016
Patent Application Number
13425734
Date Filed
March 21, 2012
Patent Citations Received
Patent Primary Examiner
Patent abstract
A control approach of adjusting the input power of a power factor correction (PFC) stage so that the output voltage (DC-link) of the input AC/DC stage to an intermediate DC voltage (DC-Bus voltage) is adjusted based on the amount of power required to charge a high energy battery is disclosed. The present invention controls the input power of the PFC instead of the DC-bus voltage as is common in conventional methods. Therefore, a very fast response compared to the conventional sluggish voltage loop can be achieved. Also, having different DC-bus voltages for different output load conditions allows the DC/DC converter to work with an optimal duty cycle for a whole range of load variations.
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