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A power supply circuit and electronic equipment

A technology of power supply circuit and power supply battery, which is applied in the field of circuits and can solve the problems of direct replacement and difference of lithium batteries

Active Publication Date: 2021-01-15
SUZHOU XYSEMI ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a large difference between the output voltage of the lithium battery and the output voltage of the dry battery during discharge, making it impossible to directly replace the dry battery in the original electronic equipment with the lithium battery.

Method used

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  • A power supply circuit and electronic equipment
  • A power supply circuit and electronic equipment
  • A power supply circuit and electronic equipment

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Embodiment Construction

[0035] 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, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0036] An embodiment of the present invention provides a power supply circuit. figure 1 It is a schematic structural diagram of a power supply circuit provided by an embodiment of the present invention. The power supply circuit can be set in an electronic device, for example, the electronic device can be a remote control for a TV, an air conditioner, etc., an electric toy, a wearable device, and other consumer products. The power supply circuit includes: a power supply battery 10 , a linear step-down conversion c...

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PUM

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Abstract

The embodiment of the invention discloses a power supply circuit and electronic equipment. The power supply circuit comprises: a power supply circuit, a power supply battery, a linear step-down conversion circuit and an amplitude limiting circuit, wherein the power supply battery is electrically connected with the input end of the linear step-down conversion circuit, the output end of the linear step-down conversion circuit is electrically connected with the output end of the power supply circuit, and the linear step-down conversion circuit is used for outputting voltage linearly decreased along with decrease of the voltage of the power supply battery when the voltage of the power supply battery is smaller than or equal to preset voltage; when the voltage of the power supply battery is equal to the preset voltage, the output voltage is the initial drop voltage; and the amplitude limiting circuit is used for limiting the voltage of the output end of the linear step-down conversion circuit to be equal to the initial step-down voltage when the voltage of the power supply battery is greater than the preset voltage. According to the technical scheme provided by the embodiment of the invention, the output characteristics of the lithium battery can be the same as the output characteristics of the replaced dry battery, so that the lithium battery can conveniently replace the dry battery in the original electronic equipment.

Description

technical field [0001] The invention relates to the technical field of circuits, in particular to a power supply circuit and electronic equipment. Background technique [0002] The use of batteries in our lives has spread to every corner. Dry batteries can only be used once and cannot be recharged for multiple uses, and discarded dry batteries will pollute the environment. Compared with dry batteries, lithium batteries can be recycled for a relatively long time due to their good charge-discharge performance, and are more environmentally friendly and economical. [0003] From environmental protection and economic considerations, people need a new type of lithium battery that is more environmentally friendly and reusable to replace dry batteries. However, there is a large difference between the output voltage of the lithium battery and the output voltage of the dry battery during discharge, making it impossible to directly replace the dry battery in the original electronic d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00
CPCH02J7/0063H02J2207/20
Inventor 崔国庆
Owner SUZHOU XYSEMI ELECTRONICS TECH CO LTD