Bridge-driven IPM (intelligent power module) circuit for three-phase electric machine
An intelligent power module and bridge drive technology, applied in circuits, output power conversion devices, electrical components, etc., can solve the problem of large occupied area of the gate driver chip, large heat generation of the power device, and long connection of the gate driver chip, etc. problems, to achieve the effect of easy control of the production and processing process, simple process conditions, and thin feature lines
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[0019] The present invention will be described in further detail below in conjunction with the embodiments of the drawings.
[0020] The circuit principle diagram of an intelligent power module circuit for three-phase motor bridge drive proposed in the present invention is as follows figure 2 As shown, it includes a gate drive chip, three high-side power devices 20, 30, 40 and three low-side power devices 50, 60, 70. The gate drive chip is mainly controlled by the high-voltage side produced by a high-voltage isolation manufacturing process. The driver chip 90 is composed of a low-side control drive chip 100 produced by a common CMOS process. The high-side control drive chip 90 is mainly integrated by a high-side drive module 91, and the low-side control drive chip 100 is mainly composed of a low-side drive module 101 and an operational amplifier 102. Integrate with the low-voltage regulator circuit 110, each signal input port of the high-side drive module 91 is connected to the h...
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