Wireless charging circuit, charging equipment and equipment to be charged
A wireless charging and circuit technology, which is applied in the direction of battery circuit devices, circuits, circuit devices, etc., can solve the problems of inability to carry out wireless charging and inability to accommodate flat coils, and achieve the requirements of improving flexibility and adaptability and reducing assembly space. The effect of a large design space
Pending Publication Date: 2021-12-31
HUAWEI TECH CO LTD
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Problems solved by technology
[0005] The embodiment of the present application provides a wireless charging circuit, a charging device and a device to be charged, which can solve the problem that the flat coil cannot be accommodated and the wireless charging cannot be performed
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[0151] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known circuits, systems, and devices are omitted so as not to obscure the description of the present application with unnecessary detail.
[0152] The terms used in the following examples are for the purpose of describing particular examples only, and are not intended to limit the application. As used in the specification and appended claims of this application, the singular expressions "a", "an", "the", "above" and "the" are intended to also include, for example, "a or multiple" unless the context clearly indicates otherwise. ...
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The invention is suitable for the technical field of wireless charging, and provides a wireless charging circuit, charging equipment and equipment to be charged. The wireless charging circuit comprises a transmitting end circuit, a rectifying circuit and an inverter circuit, wherein the output end of the rectifying circuit is connected with the input end of the inverter circuit, and the output end of the inverter circuit is connected with the transmitting end circuit; and the transmitting end circuit comprises a first transmitting coil and a second transmitting coil, the first transmitting coil and the second transmitting coil are connected in series, and each of the first transmitting coil and the second transmitting coil comprises a cylindrical magnetic core and a wire wound on the cylindrical magnetic core. The wireless charging circuit can adapt to a narrow space or an irregular space based on the small size and flexibility of the first transmitting coil and the second transmitting coil on the premise that the charging performance is not reduced, the requirement for the assembling space is reduced, the assembling flexibility and adaptability are improved, and a larger design space is provided for the light, thin and small size of the whole machine.
Description
technical field [0001] The present application belongs to the technical field of wireless charging, and in particular relates to a wireless charging circuit, a charging device and a device to be charged. Background technique [0002] With the continuous development of wireless charging technology, a wireless charging circuit can be set in the charging device and the device to be charged, and the wireless charging technology can be used to charge the device to be charged. [0003] In related technologies, a wireless charging circuit may include a transmitter circuit and a receiver circuit, the transmitter circuit is set in a charging device (such as a charger or a charging base) or integrated in a terminal device, and the receiver circuit is set in a device to be charged ( such as a terminal device or a stylus). The transmitting end circuit is provided with a flat coil for generating a changing magnetic field, and the receiving end circuit is provided with a cylindrical coil...
Claims
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IPC IPC(8): H02J50/10H02J7/02H02M5/40
CPCH02J50/10H02J7/02H02M5/40H02J50/40H01F38/14
Inventor 郑帅裴昌盛
Owner HUAWEI TECH CO LTD