Fenwick & West LLP
Precise output power detection
A switching power converter provides regulated output power to a load. The switching power converter comprises a transformer including a primary winding coupled to an input voltage, a secondary winding coupled to an output of the switching power converter, an auxiliary winding on a primary side of the transformer, and a switch coupled to the primary winding of the transformer. Output voltage across the secondary winding is reflected as a feedback voltage across the auxiliary winding. The switching power converter detects output current based on a reset time of the transformer. Based on the detected output power, the switching power converter controls switching of the switch to provide regulated output power.
Dialog Semiconductor Inc.
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H02M H02M
additional inventional
Yong Fuqiang David Hien Huu Jianming
Li Shi Nguyen Bui Yao