Detection circuit and switching converter
AssigneeSilergy Semiconductor Technology (Hangzhou) LTD
InventorLongqi Wang
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Abstract
A detection circuit for a switching converter, whereby: the detection circuit is coupled in parallel with an output capacitor of the switching converter, and is configured to provide a detection branch coupled in parallel with the output capacitor during a first period of a switching cycle, in order to detect an output voltage of the switching converter; and an output voltage detection signal is generated according to the detected output voltage during a second period of the switching cycle. A switching converter can include the detection circuit and an integrated circuit.
Claims12
A detection circuit for a switching converter, the detection circuit comprising:
- a) wherein the detection circuit is coupled with an output capacitor of the switching converter, and is configured to provide a detection branch coupled in parallel with the output capacitor during a first period of a switching cycle, in order to detect an output voltage of the switching converter;
- b) wherein an output voltage detection signal is generated according to the detected output voltage during a second period of the switching cycle;
- and
- c) wherein the detection branch comprises an energy storage capacitor configured to obtain a voltage across the output capacitor that is proportional to the output voltage when the detection branch is conductive during the first period.
Dependencies are inferred from the claim text.