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Power supply circuit, circuit board, electronic equipment and manufacturing method of circuit board

A technology for power supply circuits and circuit boards, which is applied in the manufacture of printed circuits, printed circuits assembled with electrical components, printed circuits connected with non-printed electrical components, etc., and can solve problems such as failures of electronic equipment

Active Publication Date: 2022-02-01
HONOR DEVICE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides a power supply circuit, a circuit board, an electronic device, and a method for manufacturing a circuit board, which can solve the problem in the prior art that the electronic device fails due to a short circuit of the protection device

Method used

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  • Power supply circuit, circuit board, electronic equipment and manufacturing method of circuit board
  • Power supply circuit, circuit board, electronic equipment and manufacturing method of circuit board
  • Power supply circuit, circuit board, electronic equipment and manufacturing method of circuit board

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Embodiment Construction

[0059] There are various types of existing electronic equipment. For example, the electronic equipment can be a desktop computer, a notebook computer (laptop), a tablet computer (portable android device; PAD), an ultra-mobile personal computer (ultra-mobile personal computer); UMPC), handheld devices with wireless communication functions, wearable devices, wireless terminals in smart home (smart home) and other mobile terminals or fixed terminals. Wherein, the handheld device with wireless communication function may be, for example, a mobile phone, the wearable device may be, for example, a bracelet, and the wireless terminal in a smart home may be, for example, a television (TV).

[0060] Figure 1a-Figure 1d A circuit of an electronic device in the related art is schematically shown. see Figure 1a-Figure 1d For any electronic device, it has a power supply unit 11a and a load unit 12a, the power supply unit 11a supplies power to the load unit 12a through the power supply cir...

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Abstract

An embodiment of the invention provides a power supply circuit, a circuit board, electronic equipment and a manufacturing method of the circuit board. The power supply circuit comprises a power supply unit, a load unit connected with the power supply unit through a lead wire, and a protection device which is connected with the power supply unit in parallel, wherein the protection device is connected in series with a first metal heat-conducting sheet, a welding rod and a second metal heat-conducting sheet to form a protection branch, and when the protection device works normally, the welding rod can conduct the first metal heat-conducting sheet and the second metal heat-conducting sheet, so that the protection branch can be grounded to protect the load unit, the welding rod can be fused when the protection device is short-circuited, thus the protection branch is changed into an open circuit, and the power supply unit is not short-circuited. Therefore, the problem that the electronic equipment has a fault due to the short circuit failure of the protection device can be solved.

Description

technical field [0001] The embodiments of the present application relate to the technical field of terminals, and in particular to a power supply circuit, a circuit board, an electronic device, and a method for manufacturing the circuit board. Background technique [0002] With the rapid development of mobile communication technology, the functions of electronic devices are becoming more and more diverse. At present, electronic devices are usually integrated with electronic components such as System on a Chip (SoC), radio frequency module, display module, camera module, etc. These electronic components are connected to the power supply through the power supply circuit to be able to receive power. Transmits electrical energy and performs work. [0003] Electrostatic interference and surge phenomena often occur during the production and use of electronic equipment. At this time, an overload voltage is generated instantaneously on the power supply circuit, and the overload vol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K1/11H05K1/02H05K1/18H05K3/34H05K3/40H02H3/08H02H7/20
CPCH05K1/111H05K1/0213H05K1/0215H05K1/18H05K3/34H05K3/4007H02H3/08H02H7/20
Inventor 王兆杰简世闯程小艳
Owner HONOR DEVICE CO LTD
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