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Charging circuit management device and wireless terminal

A charging circuit and management device technology, applied to battery circuit devices, circuit devices, AC network circuits, etc., can solve the problems of large energy consumption and low charging efficiency, reduce energy loss, reduce voltage drop, and improve the whole machine Fever effect

Active Publication Date: 2014-06-04
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a charging circuit management device and a wireless terminal to solve the problems of excessive energy loss and low charging efficiency in the charging process in the prior art

Method used

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  • Charging circuit management device and wireless terminal
  • Charging circuit management device and wireless terminal
  • Charging circuit management device and wireless terminal

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Embodiment Construction

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and 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.

[0021] Embodiment 1 of the present invention provides a charging circuit management device, such as figure 1 As shown, it includes: a power management module, a step-down switching voltage converter and a linear charging circuit. The power management module includes: an adjustable linear step-down voltage converter and a digital-to-analog converter; wherein, the power management module can be The output terminal of the linear step-down voltage converter is connected to the feedback terminal of the step-down switching voltage converter through a preset r...

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PUM

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Abstract

The present disclosure provides a management device for a charging circuit and a wireless terminal, which belong to the technical field of management control of a linear charging circuit. The device includes a power supply management module (5), a buck switching voltage converter (1) and a linear charging circuit (2). The power supply management module (5) includes an adjustable Low Dropout (LDO) linear regulator (6) and an Analog-to-Digital Converter (ADC) (4), wherein the output terminal of the adjustable LDO linear regulator (6) is connected with the feedback terminal of the buck switching voltage converter (1) through a first preset resistor (R62). The input terminal of the ADC (4) is connected with the anode of a battery (3). The control terminal of the power supply management module (5) is connected with the control terminal of the linear charging circuit (2). The output terminal of the buck switching voltage converter (1) is connected with the input terminal of the linear charging circuit (2). The output terminal of the linear charging circuit (2) is connected with the anode of the battery (3). With the device, the energy loss can be reduced and the whole power loss can be reduced.

Description

technical field [0001] The invention relates to the technical field of linear charging circuit management and control, in particular to a charging circuit management device and a wireless terminal. Background technique [0002] As the functions of electronic products become more and more complex, the miniaturization and portable development of electronic products, especially the wide application of wireless communication terminals, put forward higher requirements for designers: such as requiring low power consumption, less heat generation of the whole machine, and reliable Only when the performance is high will it bring a good experience to users. However, the miniaturization of products is not conducive to heat dissipation, and poor heat dissipation leads to reduced reliability. Therefore, reducing the power of the whole machine can effectively reduce the heat generation of the whole machine and improve reliability. [0003] Wireless terminal portable products generally ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00H04M1/725
CPCH02M2001/0012H02J7/0052H02M2001/0045H02J2007/0059H02M3/158H02J2207/20H02J7/00H02M1/0012H02M1/0045
Inventor 王继红
Owner ZTE CORP