US Patent Application 18315992. CONTROL CIRCUIT, POWER FACTOR CORRECTION CIRCUIT, AND ELECTRIC APPLIANCE simplified abstract
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CONTROL CIRCUIT, POWER FACTOR CORRECTION CIRCUIT, AND ELECTRIC APPLIANCE
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CONTROL CIRCUIT, POWER FACTOR CORRECTION CIRCUIT, AND ELECTRIC APPLIANCE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18315992 titled 'CONTROL CIRCUIT, POWER FACTOR CORRECTION CIRCUIT, AND ELECTRIC APPLIANCE
Simplified Explanation
The patent application describes a control circuit for a power factor correction circuit that includes a DC-DC converter.
- The control circuit includes an amplifier, a comparator, and a driver.
- The amplifier amplifies a voltage that represents the output voltage of the DC-DC converter.
- The comparator compares the output voltage of the amplifier with a slope voltage that represents the current passing through a switching element in the DC-DC converter.
- The driver drives the switching element based on the output voltage of the comparator.
- The control circuit is designed to adjust the gain of the amplifier and the gradient of the slope voltage based on the load power of the DC-DC converter.
Original Abstract Submitted
A control circuit controls a power factor correction circuit including a DC-DC converter. The control circuit includes an amplifier configured to amplify a voltage commensurate with the output voltage of the DC-DC converter, a comparator configured to compare the output voltage of the amplifier with a slope voltage commensurate with the current passing through a switching element in the DC-DC converter, and a driver configured to drive the switching element based on the output voltage of the comparator. The control circuit is configured to adjust at least one of the gain of the amplifier and the gradient of the slope voltage in accordance with the load power of the DC-DC converter.
