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Self-switching circuit applied to Internet of Things equipment

An IoT device, self-switching technology, applied in circuit devices, load supply circuits, battery circuit devices, etc., can solve the problems of low output power consumption, reduced chip availability, power failure of back-end electrical equipment, etc. Electricity, to achieve the effect of seamless connection

Pending Publication Date: 2021-07-16
HARBIN UNIV OF SCI & TECH
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Problems solved by technology

[0004] Due to the low power consumption of most Internet of Things devices, most of the power chips at the entrance of the device currently use a lithium battery linear charging boost chip. The advantage of this chip is that when the adapter is unplugged, the chip can directly Boost the lithium battery, output the back-end voltage, ensure that the back-end electrical equipment will not be powered off during the switching process, and realize seamless switching. However, this linear boost chip has a disadvantage that it cannot be enlarged, and the output power consumption Low, it can only be used by low-power IoT devices. With the application of 5G, the power consum

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  • Self-switching circuit applied to Internet of Things equipment

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[0010] The technical solutions in the implementation cases of the present invention will be described more profoundly and completely below. The implementation cases described are partly implementation cases. Users can obtain other implementation cases according to the present invention without paying creative efforts. The "other implementation cases" all belong to the protection scope of the present invention.

[0011] According to an embodiment of the present invention, a self-switching circuit applied in an Internet of Things device is provided.

[0012] The self-switching circuit applied in the Internet of Things device in the embodiment of the present invention includes the following steps:

[0013] Step 1: Determine the peripheral circuit structure in advance, and calibrate the position of the power supply of the back-end electrical equipment of the IoT device and the lithium battery power supply;

[0014] Step 2: Add TVS diodes at the calibration position.

[0015] W...

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Abstract

The invention discloses a self-switching circuit applied to Internet of Things equipment. The self-switching circuit comprises a lithium battery charging boost chip SL8020 and a peripheral circuit thereof, and a TVS diode is additionally arranged in the peripheral circuit of the lithium battery charging boost chip SL8020 to realize instant switching when a power supply at the entrance of the SL8020 is powered off. The Internet of Things equipment is common Internet of Things equipment, such as common air detector equipment at present.

Description

technical field [0001] This patent relates to a self-switching circuit used in IoT devices. Background technique [0002] With the development of communication technology, especially the high-bandwidth and low-latency technology of 5G communication provides the basis for the Internet of Everything, so the current Internet of Things applications are developing rapidly, including air detectors, such as home smart robots, and family The refrigerators, TVs, washing machines and even curtains inside can be connected together for remote operation. [0003] At present, IoT devices are widely used, and the most typical application is the air detector, which can be placed in any place that the user wants to test to detect the local air quality and give reasonable suggestions to the user. In the application of these Internet of Things devices, due to the arbitrary location of use, it is necessary that the power cannot be cut off, so basic Internet of Things applications, including ai...

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Application Information

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IPC IPC(8): H02M3/156H02J7/00
CPCH02J7/0063H02M3/156
Inventor 薛萍魏川博王宏民
Owner HARBIN UNIV OF SCI & TECH
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