Charging device and earphone charging device
A technology for charging devices and earphones, which is applied to circuit devices, battery circuit devices, and different battery charging. The effect of using efficiency
Inactive Publication Date: 2019-09-20
深圳市国诠电子有限公司
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
If the indicator light is used to indicate the power, it is not accurate enough; and if the LED digital tube is used to display the value of the power, there are more pins (for example, if the "8" digital tube has 7 light-emitting diodes, there will be 7+1 common terminals, 8 pins in total), which will increase the difficulty of circuit design
Method used
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[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.
[0023] The present application proposes an earphone charging device, which includes a battery, a first earphone char...
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The invention relates to a charging device and an earphone charging device. An electric quantity display module of the earphone charging device comprises a plurality of light emitting diodes. The anode of each light emitting diode is connected with one light emitting control port of a control module, and the cathode is connected with another light emitting control port. The control module controls the light emitting of the light emitting diodes by outputting a high level to the light emitting control ports connected with the anodes and outputting a low level to the light emitting control ports connected with the cathodes. The light emitting control ports connected with any two light emitting diodes among the light emitting diodes are not the same. The control module controls the on-off of the light emitting diodes by polling scanning. The traditional 'common-anode' or 'common-cathode' control mode is abandoned, and the maximum number of light emitting diodes which can be independently controlled is n*(n-1). Therefore, electric quantity display involves fewer pins, and the difficulty of circuit design is reduced.
Description
technical field [0001] The invention relates to a charging device, in particular to an earphone charging device. Background technique [0002] When using the charging box to charge the wireless headset, the user hopes to know the current power of the headset / charging box at any time. If the indicator light is used to indicate the power, it is not accurate enough; and if the LED digital tube is used to display the value of the power, there are more pins (for example, if the "8" digital tube has 7 light-emitting diodes, there will be 7+1 common terminals, a total of 8 pins), will increase the difficulty of circuit design. Contents of the invention [0003] Based on this, it is necessary to provide an earphone charging device with fewer pins involved in power display. [0004] An earphone charging device, comprising a battery, a first earphone charging module, a second earphone charging module, a power detection module, a power display module and a control module, the power...
Claims
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Login to View More IPC IPC(8): H02J7/00G09G3/32
CPCH02J7/0047G09G3/32H02J7/0049
Inventor 邹伟
Owner 深圳市国诠电子有限公司