COMPARATOR WITH NOISE CANCELLATION FOR SWITCHING POWER CONVERTERS

    公开(公告)号:US20250096680A1

    公开(公告)日:2025-03-20

    申请号:US18673633

    申请日:2024-05-24

    Abstract: Comparator circuitry for power converters. In an example, a circuit includes a comparator having a first comparator input, a second comparator input, and a comparator output, the comparator coupled to a supply terminal. The circuit further includes a first transistor coupled between a boot terminal and the first comparator input and having a control terminal coupled to a switching terminal, and a second transistor coupled between the boot terminal and the second comparator input and having a control terminal coupled to the switching terminal. Also, a third transistor is coupled between the supply terminal and the second comparator input, and a voltage reference generator is coupled to the supply terminal and to a control terminal of the third transistor.

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