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power detection circuit

A technology of power detection and voltage detection, which is applied in power supply testing, data processing power supply, measuring current/voltage, etc. It can solve the problems of failure to detect the power of electronic products, the inability to know the power consumption of electronic products, changes, etc.

Inactive Publication Date: 2018-08-07
郓城县安迪玻璃有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned power detection circuit only detects the external power supply of the electronic product, but fails to detect the power of the electronic product. change without implementation

Method used

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Embodiment Construction

[0021] see figure 1 , In a preferred embodiment of the present invention, a power detection circuit includes a power module 10, a first voltage detection module 20, a second voltage detection module 30, a display screen 40, an MCU (Micro ControlUnit (micro control unit) 50, a current detection module 60. The power module 10 can convert the voltage of the AC power supply 70 into a DC voltage to supply power to an electronic load, and the electronic load can be an electronic device such as a liquid crystal panel, a display, and a television.

[0022] The first voltage detection module 20 is connected to the AC power input terminal of the power module 10, and is used to detect whether the AC voltage connected to the power module 10 has abnormal conditions such as mutation, flashover, and instability. . The second voltage detection module 30 is connected to the voltage output terminal of the power module 10 for detecting the output voltage of the power module 10 . The current d...

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PUM

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Abstract

A power detection circuit, comprising a first voltage detection module connected to a power supply module of an electronic device, a micro control unit connected to the first voltage detection module, and a display connected to the micro control unit screen, a voltage detection module for detecting the output voltage of the power module and a current detection module for detecting the output current of the power module, and the first voltage detection module is used for detecting Whether the AC power input to the power module has flashover, voltage mutation, etc., the voltage detection module and the current detection module output the detected signals to the micro control unit, and the micro control The unit calculates the power of the power module, and the display module displays the output voltage value, output current value and output power of the power module. The power detection circuit of the present invention can detect the power output from the power module to the electronic device in real time, which is convenient for users to adjust the energy-saving working mode of the electronic device.

Description

technical field [0001] The invention relates to a power detection circuit. Background technique [0002] When the user is using the electronic product, if the power grid is in an unstable state, the external power input to the electronic product may have overvoltage, which may easily cause damage to the components in the electronic product. Therefore, it is necessary to use a power detection circuit to detect whether there is a sudden change or flashover in the external power supply of the electronic product. A traditional power detection circuit includes a voltage jump detection module connected with the power module of an electronic product, a micro control unit connected with the voltage jump detection module and a display connected with the micro control unit screen, the voltage jump detection module is used to detect the AC voltage connected to the power supply module and generate a detection signal to output to the micro control unit, and the micro control unit judges...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R19/00G01R21/06
CPCG06F1/305G01R31/40G05F1/571G05F1/573G06F1/28H02M1/32H02M7/217H02M7/219
Inventor 林静忠
Owner 郓城县安迪玻璃有限公司
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