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Power supply design and device

A battery and direct current technology, applied in output power conversion devices, electrical components, adjusting electrical variables, etc., can solve the problems of mobile phone stability problems that cannot be fully exposed and cannot be tested for mobile phone stability.

Inactive Publication Date: 2020-07-03
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This application discloses a power supply design and device, which can solve the problem that the stability of the mobile phone cannot be fully exposed in the test environment using a real battery, and the stability of the mobile phone in a low-battery scene cannot be tested in a test environment using a DC power supply.

Method used

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  • Power supply design and device

Examples

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Embodiment Construction

[0021] The embodiment of the present application provides a power supply design and device, and the device can be used as a battery for testing the function and stability of the terminal device to supply power to the terminal device.

[0022] The device provided in the embodiment of the present application may be a power supply for supplying power to terminal equipment, and the voltage value of the output direct current of the power supply is controllable, so that it can simulate the scene of VBAT voltage drop or low battery when running the application in the terminal equipment, etc. , to achieve stability in cell phone unit testing and burn-in testing. The terminal device may be various electronic devices such as a mobile phone and a pad. In this application, the terminal device is described as a mobile phone.

[0023] In order to achieve a controllable power supply, image 3A schematic structural diagram of a power supply is shown. The device provided by the application i...

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PUM

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Abstract

The invention discloses a power supply design and device, relates to the technical field of terminals, and can solve the problems that the stability problem of a mobile phone cannot be fully exposed in a test environment using a real battery and the stability of a mobile phone in a low-electric-quantity scene cannot be tested in a test environment using a direct-current power supply. The device isconnected with a battery plug connector of terminal equipment and used for supplying power to the terminal equipment, and comprises a micro control unit MCU, at least one DC / DC converter and at leastone high-frequency switch, wherein the MCU is used for controlling the DC / DC converter to output direct currents with different voltage values and allowing or not allowing the DC / DC converter to output the direct currents by controlling on-off of the high-frequency switch, the DC / DC converter is used for outputting direct currents with different voltage values, and the high-frequency switch is used for allowing or not allowing the DC / DC converter to output direct current to the terminal equipment. The embodiment of the invention is used for designing the output-controllable power supply.

Description

technical field [0001] The present application relates to the technical field of terminals, and in particular to a power supply design and device. Background technique [0002] Before the mobile phone products go on the market, detailed function and stability tests are required. In the unit test and aging test of the mobile phone, the real battery of the mobile phone or such as figure 1 The dummy battery powered by DC power is shown as the mobile phone system power supply. Since the user's usage of the mobile phone cannot be predicted during the user's use process, in the unit test and aging test of the mobile phone, the mobile phone is generally subjected to a heavy load test to find out the reliability of the mobile phone. [0003] In the heavy load test, for mobile phones powered by real batteries, in order to introduce the application scenario of the battery voltage (Voltage of Battery, VBAT) jump, the CMU comprehensive tester is generally used to simulate the global sy...

Claims

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Application Information

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IPC IPC(8): H02M3/00
CPCH02M3/00H02M1/0012
Inventor 赵剑
Owner HUAWEI TECH CO LTD
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