Charging circuit, charging method and wireless transmitting equipment
A charging circuit and wireless transmission technology, which is applied in the direction of battery circuit devices, circuit devices, collectors, etc., can solve the problem of large energy loss in the charging circuit, and achieve the effect of reducing energy loss
Pending Publication Date: 2021-02-12
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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[0004] In view of this, an embodiment of the present invention provides a charging circuit, a charging method, and a wireless transmitting device, so as to at least solve the problem of large energy loss of the charging circuit in the related art
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[0052]The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.
[0053]In the following description, for the purpose of illustration rather than limitation, specific details such as a specific system structure and technology are proposed for a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, and methods are omitted to avoid unnecessary details from obstructing the description of the present invention.
[0054]It should be noted that the technical solutions described in the embodiments of the present invention can be combined arbitrarily without conflict.
[0055]In addition, in the embodiment of the present invention, "first", "second", etc. are used to distinguish similar objects, ...
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The invention discloses a charging circuit, a charging method and wireless transmitting equipment. The charging circuit comprises a boost circuit, a control circuit, an inverter circuit, and a transmitting circuit. The boost circuit is used for boosting the received direct current; the control circuit is used for determining the working state of the charging circuit, determining whether the working mode of the inverter circuit is a full-bridge mode or a half-bridge mode by using the determined working state, and generating a corresponding control signal based on the determined working mode; the inverter circuit is used for responding to the control signal, working in a working mode indicated by the control signal and converting the boost direct current into alternating current; the switching frequency of the inverter circuit is determined based on the working mode indicated by the control signal; and the transmitting circuit is used for converting the alternating current into an electromagnetic signal and transmitting the electromagnetic signal.
Description
Technical field[0001]The invention belongs to the field of charging technology, and in particular relates to a charging circuit, a charging method and a wireless transmitting device.Background technique[0002]As the wireless charging transmitter, the wireless charger usually uses a full-bridge inverter circuit to invert the DC power output by the power adapter into AC power, and on this basis, it transmits electromagnetic signals to achieve energy transmission. In order to meet high-power charging, a boost circuit is set in the charging circuit of the wireless charger.[0003]However, in the related art, when performing high-power charging, the charging circuit has a problem of large energy loss.Summary of the invention[0004]In view of this, embodiments of the present invention provide a charging circuit, a charging method, and a wireless transmitting device, so as to at least solve the problem of large energy loss of the charging circuit in the related art.[0005]The technical solution...
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Login to View More IPC IPC(8): H02J7/00H02J50/00
Inventor 史岩松万世铭
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD