IPM protection device, motor and IPM protection method thereof
A protection device and overcurrent protection circuit technology, which is applied in the direction of emergency protection circuit devices, electrical components, etc., can solve problems such as the reliability of IPM internal power device burnout protection, so as to improve protection reliability, ensure protection safety, and protect reliability. sex high effect
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[0032] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. 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.
[0033] According to an embodiment of the present invention, an IPM protection device is provided. see figure 1 A schematic structural view of an embodiment of the device of the present invention is shown. The IPM protection device may include: a current sampling circuit 10, a first overcurrent protection circuit 20 (such as a traditional motor three-phase curren...
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