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Primary-side and secondary-side full-bridge switching circuit controller for a magnetic coupling and contactless power transmission apparatus
Primary-side and secondary-side full-bridge switching circuit controller for a magnetic coupling and contactless power transmission apparatus
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机译:用于磁耦合和非接触式电力传输设备的一次侧和二次侧全桥开关电路控制器
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摘要
The present invention relates to a magnetic coupling and contactless power transmission apparatus. In one embodiment, an apparatus can include: a sweep generator to generate a switching pulse signal for operation of bottom switches of a primary-side full-bridge switching circuit; a primary-side switching current zero-crossing detector to generate a primary-side current zero-crossing pulse signal when a primary-side switching current crosses zero; a primary-side PWM signal generator to generate a primary-side PWM signal per an input current to control a shut-off operation of top switches of the primary-side full-bridge switching circuit; in a first operation condition, a frequency of the switching pulse signal is higher than the primary-side current zero-crossing pulse signal, and the switching pulse signal controls a shut-off operation of the bottom switches of the primary-side full-bridge switching circuit.
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