Charging circuit and electronic equipment
A charging circuit and circuit technology, which is applied in the electronic field, can solve the problems of cost reduction, unfavorable layout and wiring, and occupy a large PCB area, and achieve the effects of reducing devices, saving costs, and saving PCB layout area and layout space
Active Publication Date: 2019-05-07
VIVO MOBILE COMM CO LTD
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Problems solved by technology
[0004] The embodiment of the present invention provides a charging circuit and electronic equipment to solve the problems in the prior art that large-packaged protective devices with many layouts occupy a large PCB area, which is not conducive to layout and wiring and reduces costs.
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[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0019] A charging circuit is disclosed in the embodiment of the present invention, combining figure 1 , figure 2 and image 3 shown, including:
[0020] A charging socket, with a connection path between the charging end of the charging socket and the battery to be charged;
[0021] Temperature control and surge protection circuit, the temperature control and surge protection circuit includes:
[0022] A switch tube, the switch tube includes a firs...
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The invention provides a charging circuit and electronic equipment. The charging circuit comprises a charging plug interface and a temperature control and surge protection circuit, and is characterized in that there is a connecting path between a charging end of the charging plug interface and a battery to be charged; the temperature control and surge protection circuit includes a switch tube, a temperature control circuit and a voltage control circuit, the switch tube comprises a first end, a second end and a control end controlling turn-on of turn-off of the first end and the second end, thefirst end is connected to the connecting path, and the second end is grounded; the temperature control circuit is used for collecting temperature data of the charging plug interface and controlling the working state of the switch tube; and one end of the voltage control circuit is connected with the control end of the switch tube, and the other end is connected with the connecting path, and the voltage control circuit is used for controlling the switch tube to be turned on when the voltage of the charging end exceeds a predetermined threshold. The charging circuit reduces devices, saves the cost and saves the PCB layout area and space.
Description
technical field [0001] The invention relates to the field of electronics, in particular to a charging circuit and electronic equipment. Background technique [0002] With the development of fast charging technology in the field of electronic equipment, the power of charging is increasing, and the reliability of charging is becoming more and more important. [0003] In the existing charging circuit, in order to improve the reliability of the charging process, more protective devices are used, and because the VBUS DC / surge power is relatively large, the protective devices are all large packaged devices, occupying a large printed circuit board (Printed Circuit Board, PCB) area, which is not conducive to layout and wiring and reduce PCB cost. Contents of the invention [0004] Embodiments of the present invention provide a charging circuit and electronic equipment to solve the problems in the prior art that large-packaged protective devices with many layouts occupy a large PC...
Claims
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IPC IPC(8): H02J7/00
CPCH02J7/00308H02J7/00309H02J7/0034H02H7/18H02H9/041H02H5/04H02J7/007182H02J7/0031H02J7/0042
Inventor 李振东
Owner VIVO MOBILE COMM CO LTD