使用 ML4425/ML4426 BLDC
電機控制器驅動
高壓電機的應用電路。該電路展示了一種驅動高壓電機的方法。 IR2130 為更大的 FET 提供接口和驅動能力。浮動電源為 3 個高側
驅動電路供電。在許多 FET
驅動器的應用筆記中,他們展示了一種飛跨電容器方法來開發高側 N 溝道器件的驅動器。該電路將一個
二極管從 +12V 電源軌連接到一個電容器,該電容器的另一端連接到電機相輸出
說明
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Application circuit using the ML4425/ML4426 BLDC motor controllers for driving high voltage motors. This circuit shows one way to drive a high voltage motor. The IR2130 provides the interface and drive capability for the larger FET's. The floating supply powers the 3 high side drive circuits. In the application notes for many of the FET drivers they show a flying capacitor approach to developing drive for the high side N-channel devices. This circuit connects a diode from the +12V rail to a capacitor, which has the other end hooked to the motor phase output