Motor controller over-current protection device, motor controller and electric car
A motor controller and overcurrent protection technology, applied in the direction of emergency protection circuit devices, electrical components, etc., can solve the problems of inconsistent current and low judgment accuracy of the motor controller, and achieve the effect of increasing the judgment accuracy
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[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0045] The embodiment of the present application provides an overcurrent protection device for a motor controller, such as figure 1As shown, it is applied to a motor controller, the motor controller includes a control system and a drive circuit, and the motor controller overcurrent protection device includes:
[0046] A current sensing module 100, configured to collect two-phase current signals output by the motor controller;
[0047] A current conversion mod...
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