Power management circuit, electronic equipment and power management method
A power management and power management chip technology, applied in battery circuit devices, circuits, circuit devices, etc., can solve problems such as affecting the life of battery modules, and achieve the effects of avoiding battery overheating, improving work efficiency, and extending battery life.
Active Publication Date: 2019-10-22
KUSN INFOVISION OPTOELECTRONICS
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Problems solved by technology
When the electronic equipment is also running with a load during the charging process, the battery module not only needs to receive the input current delivered by the power module, but also provides an output circuit to the battery management chip. In the case of high output power, it will aggravate the heating of the battery module. Affect the life of the battery module
Method used
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[0030] Various embodiments of the invention will be described in more detail below with reference to the accompanying drawings. In the various drawings, the same elements are denoted by the same or similar reference numerals. For the sake of clarity, various parts in the drawings have not been drawn to scale.
[0031] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0032] figure 1 A schematic diagram of an electronic device according to an embodiment of the present invention is shown.
[0033] Such as figure 1 As shown, the electronic device in this embodiment includes a power supply module 210 , a power management module 220 , a processor (Central Processing Unit, CPU) 230 and a load 240 .
[0034] The power module 210 is used to provide power to the power management module 220 . The power module 210 includes, for example, an adapter and / or a USB (Unive...
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The invention discloses a power management circuit, electronic equipment and a power management method. The power management circuit comprises a power port, a battery module, a power management chip,a detection module, a control module and a switching module, wherein the power port receives electric energy provided by an external power supply; the battery module stores the electric energy provided by the external power supply; the power management chip provides working voltage for a load by using the received electric energy, receives the electric energy provided by the battery module througha first power supply path or receives the electric energy provided by the power port through a second power supply path; the detection module provides a detection signal at least according to the electric quantity of the battery module; the control module provides a control signal according to the detection signal; and the switching module gates the first power supply path and the second power supply path in a non-overlapping mode according to the control signal. The power management circuit supplies power by adopting the first power supply path or the second power supply path according to the detection signal, thereby being capable of avoiding the condition that the battery module is charged while being charged when the load is in operation, being capable of prolonging the life of the battery, preventing the battery from being overheated, and improving the working efficiency of the circuit.
Description
technical field [0001] The present invention relates to the field of power supply technology, and more specifically, to a power management circuit, electronic equipment and a power management method. Background technique [0002] The power management module includes a power port, a battery module, a power management chip and a chopper module, and has functions such as battery management, voltage regulation and charging. During the charging process of electronic equipment, the power supply sends electric energy to the battery module through the charging switch to charge the battery module in the battery module, and the battery module sends electric energy to the power management chip to provide the power required by each module of the motherboard. When the electronic device is only charging without other operations, the charging module only delivers power to the battery module; and when the electronic device is also running with a load during the charging process, then the po...
Claims
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Login to View More IPC IPC(8): H02J7/00H01M10/48
CPCH01M10/48H02J7/0068Y02E60/10
Inventor 窦彦坤马曼曼
Owner KUSN INFOVISION OPTOELECTRONICS