Power management module with wide output voltage
A power management module and wide output technology, applied in battery circuit devices, different battery charging, current collectors, etc., can solve problems such as different rated voltages, increased system volume space and weight, and control systems that cannot be installed normally. Reduce the system size and reduce the effect of PCB wiring
Inactive Publication Date: 2019-10-08
HEFEI NORMAL UNIV
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[0003] For example, in some control systems commonly used for voice or video surveillance, it is necessary to supply power to the system's main control module, GPRS module, positioning module, language module, video module and its indicating circuit, reset circuit, etc., each module and its functional area The rated voltage of the circuit is different; and the lithium batteries commonly used to supply power to the system are only 1.5V, 3.0V and 3.6V. The volume space and weight of the whole system are increased, so that the control system cannot be normally mounted on drones, cranes, vehicles, wearable devices and other fields
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[0028] 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 only some, not all, embodiments of the present invention.
[0029] In order to satisfy all the modules of the general light control system to work normally, the present invention designs a set of power management module. The power supply of the whole control system is powered by polymer lithium battery. The power management module is divided into the following parts:
[0030] 1) Lithium polymer battery charging module;
[0031] 2) DC boost module;
[0032] 3) DC step-down module.
[0033] refer to Figure 1-8 , the present invention integrates the polymer lithium battery charging module, the DC boost module and the DC step-down module on the same PCB circuit board, the polymer lithium battery charging module specifically re...
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The invention discloses a power management module with wide output voltage, which is mainly composed of a polymer lithium battery charging module, a DC step-up module and a DC step-down module, wherein the polymer lithium battery charging module is a polymer lithium battery based on a TP4056 chip, the TP4056 chip is connected with a MicroUSB interface and a polymer lithium battery interface, the DC step-up module is composed of an SD6271 step-up chip and a peripheral circuit, the DC step-down module includes an SY8089 step-down chip, an XC6206-2.8 step-down chip and an AMLLL7L13-3.3V step-downchip. According to the invention, a plurality of power modules are integrated into one PCB unit, and the PCB unit has a plurality of output voltages, so that various power supply requirements of a control system can be met, excessive power supplies and management modules thereof are prevented from being added, the PCB wiring and system volume are reduced, and a new idea is provided for reasonablelayout of a chip control system.
Description
technical field [0001] The invention relates to the technical field of electronic equipment systems, in particular to a power management module with wide output voltage. Background technique [0002] In today's world, people's lives are inseparable from electronic devices even for a moment. The power management chip is responsible for the transformation, distribution, detection and other power management of electric energy in the electronic equipment system. The power management chip is indispensable for the electronic system, and its performance has a great influence on the performance of the whole machine. direct impact. [0003] For example, in some control systems commonly used for voice or video surveillance, it is necessary to supply power to the system's main control module, GPRS module, positioning module, language module, video module and its indicating circuit, reset circuit, etc., each module and its functional area The rated voltage of the circuit is different;...
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IPC IPC(8): H02J7/00
CPCH02J7/0047H02J7/0086
Inventor 李琛璐范程华王怡影
Owner HEFEI NORMAL UNIV