Control device and wireless power transmission system based on wireless power transmission system
A wireless power transmission and control device technology, applied in the direction of output power conversion devices, circuit devices, electrical components, etc., can solve the problem of low reliability
Active Publication Date: 2019-03-26
XJ POWER CO LTD +3
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Problems solved by technology
[0007] The purpose of the present invention is to provide a control device based on a wireless power transmission system to solve the problem of low reliability of existing control devices
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[0038] As shown in Figure 1, the control device provided by the present invention is dedicated to a wireless power transmission system for figure 2 The switch tube in the bridge circuit is controlled. Such as image 3 As shown, the control device includes: a current detection module for collecting the loop current of the transmitting end, a control module for outputting a control signal and an initial PWM signal, a zero-crossing comparison output module, a square wave signal generating module, and a driving signal generating module The output of the current detection module is connected to the control module and the zero-crossing comparison output module. The output of the control module and the zero-crossing comparison output module is connected to the corresponding input terminal of the square wave signal generating module. The output terminal of the square wave signal generating module is connected to the drive signal generating module. Input terminal; when there is no curre...
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The invention relates to a control device based on a wireless power transmission system and the wireless power transmission system. The system comprises a main circuit and a control device. The control device comprises a current detection module, a control module, a zero-crossing comparison output module, a square wave signal generation module and a drive signal generation module. When a transmitter circuit does not have current, the control device outputs an initial PWM signal and a corresponding control signal. The control device controls a switch tube according to the initial PWM signal, and the transmitter circuit has current. The control device stops responding to the PWM signal. Under the action of the corresponding control signal output by the control module, the square wave signal generation module generates a square wave signal of the same phase with the current according to a corresponding output signal of the zero-crossing comparison output module. The drive signal generation module generates a switch tube drive signal according to the square wave signal to control the switch tube. The control device is highly reliable.
Description
Technical field [0001] The invention relates to a control device based on a wireless power transmission system and a wireless power transmission system, and belongs to the field of wireless power transmission. Background technique [0002] Magnetic coupling resonance wireless power transmission technology is a technology that uses two electromagnetic systems with the same resonant frequency to transmit energy through the resonance of the transmitter and receiver coils when separated by a certain distance. [0003] Such as Figure 1-a to 1-d As shown, according to the connection mode of the resonant capacitor and the resonant coil, there are usually 4 topological structures of wireless power transmission: series resonance at the transmitting end and series resonance at the receiving end (S / S); series resonance at the transmitting end and parallel resonance at the receiving end (S / P); parallel resonance at the transmitting end and series resonance at the receiving end (P / S); parallel...
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IPC IPC(8): H02J50/12H02M1/36
CPCH02M1/36
Inventor 邓思维黄栋杰张滨刘振威范金焰李红岩曹亚韩海伦于朝辉邓长吉李彩生陈天锦
Owner XJ POWER CO LTD