Current limiting circuit and current limiting method
A current-limiting circuit and current-limiting method technology, applied to circuit devices, emergency protection circuit devices for limiting overcurrent/overvoltage, emergency protection circuit devices, etc., can solve the problem of adding a charge pump circuit and slow response speed of current limiting , large peak current and other issues
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[0043] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.
[0044] According to an embodiment of the present disclosure, a current limiting circuit 1 is provided, such as figure 1 As shown, the current limiting circuit 1 includes a load current sampling module 10, a slow and accurate current limiting module 20, a fast response current limiting module 30, and a power switch tube M0, wherein:
[0045]The load current sampling module 10 is configured to sample the load current of the power switch M0, convert the sampled load current into a voltage Vcs, and input the converted voltage Vcs to the slow and accurate current limiting module 20 and the fast response current limiting module 30;
[0046] The slow and precise c...
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