Fenwick & West LLP
Switching power converter having optimal dynamic load response with ultra-low no load power consumption
A switch controller is disclosed that adaptively controls the operating frequency of a switching power converter in order to improve one-time load response and repetitive dynamic load responses. During a transition from a high load to low load condition, the switch controller clamps the operating frequency of the switching power converter at an intermediate frequency for a period of time before allowing the operating frequency to return to a frequency associated with the low load condition. The clamped frequency is higher than the frequency associated with the low load condition thereby allowing improved response to a subsequent load change to a high load condition. Thus, the system improves dynamic load response without compromising no-load power consumption.
iWatt Inc.
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Y02B H02M H02M
additional additional inventional
Xiaolin Fuqiang David Yong
Gao Shi Nguyen Li