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US 2020/0403525 A1Published application
Semiconductor device
AssigneeRenesas Electronics Corporation
InventorToshihiro MIYAZAKI
Life of this patent
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Abstract
A semiconductor device includes a rectifier circuit that rectifies an AC input voltage, a zero-cross detection circuit that detects a zero-cross of the AC input voltage, a control circuit that turns on the rectifier circuit at a timing determined by the zero-cross detected by the zero-cross detection circuit and a predetermined phase angle, and the phase angle is set so that an output voltage of the rectifier circuit is gradually increased.
Claims16
A semiconductor device comprising:
- a rectifier circuit that rectifies an AC input voltage;
- a zero-cross detection circuit that detects a zero-cross of the AC input voltage;
- and
- a control circuit that turns on the rectifier circuit at a timing determined by the zero-cross detected by the zero-cross detection circuit and a predetermined phase angle,
- wherein the predetermined phase angle is set so that an output voltage of the rectifier circuit is gradually increased.
2 more elements
Dependencies are inferred from the claim text.