A dynamic tuning device and tuning method for receiving end of wireless power transmission equipment
A technology for wireless power transmission and reception, applied in circuit devices, electrical components, etc., can solve problems affecting system output power and transmission efficiency, increase switching loss, reduce system performance, etc., to reduce switching loss and control complexity, Easy closed-loop control, high tuning accuracy
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[0027] The present invention will be further described below in conjunction with the accompanying drawings.
[0028] figure 1 It is shown that a specific embodiment of the present invention is a dynamic tuning device at the receiving end of a wireless power transmission device. The receiving end includes a receiving coil (Ls), a compensation capacitor (Cs), a tuning device, and a rectifier bridge (RA ), DC filter capacitor (Ca), DC / DC converter (DA), load (R); it is characterized in that:
[0029] The composition of the tuning device is that the primary side of the transformer (Lcp) is connected in series between the compensation capacitor (Cs) and the rectifier bridge (RA), and the secondary side is sequentially connected as the secondary side coil (Lcs), the rectifier bridge (RB), and the DC filter capacitor (Cb), DC / DC converter (DB), the output terminals of the DC / DC converter (DB) are connected in parallel at both ends of the load (R);
[0030] A decoupling transformer ...
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