Power detection device

A technology of power detection and power, applied in the direction of electric power measurement through current/voltage, electric power measurement through the use of electromagnetic effect devices, etc., can solve the problems of inability to measure power consumption of micro-power consumption components, and achieve the effect of ensuring measurement accuracy

Inactive Publication Date: 2015-12-02
CHONGQING BOE OPTOELECTRONICS +1
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Problems solved by technology

[0003] The existing power consumption measurement is mainly realized by a power meter, but the general power meter can only measure the power consumption of the whole LCD product. Since the power co

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Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0030] figure 1 is a schematic structural diagram of a power detection device provided by an embodiment of the present invention, see figure 1 , the device consists of:

[0031] The voltage detection unit 101 is used to detect the voltage value of the component to be tested on the circuit board and output the first voltage value;

[0032] A current detection unit 102, configured to detect the current value of the component to be tested, and output a second voltage value;

[0033] The processing unit 103 is configured to calculate the power of the component under test according to the first voltage value output by the voltage detection unit and the second voltage value output by the current detection unit;

[0034] The current detect...

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Abstract

The invention discloses a power detection device, which belongs to the field of power detection. The device comprises a voltage detection unit, a current detection unit, and a processing unit, wherein the voltage detection unit is used for detecting a voltage value of a to-be-detected element on a circuit board and outputting a first voltage value; the current detection unit is used for detecting a current value of the to-be-detected element and outputting a second voltage value; the processing unit is used for calculating power of the to-be-detected element according to the first voltage value and the second voltage value; the current detection unit comprises a first hall sensor, a second hall sensor and an amplifying circuit, the first hall sensor and the second hall sensor are arranged close to an input line of the to-be-detected element, the positive electrode of the first hall sensor is connected with a power supply, the negative electrode of the first hall sensor is connected with the input end of the amplifying circuit, the negative electrode of the second hall sensor is connected with the power supply, the positive electrode of the second hall sensor is connected with the input end of the amplifying circuit, and the output end of the amplifying circuit is connected with the processing unit. The power detection device can realize power measurement on a micro-power consumption element.

Description

technical field [0001] The invention relates to the field of power detection, in particular to a power detection device. Background technique [0002] With the application of LCD (Liquid Crystal Display, liquid crystal display) products more and more widely, the power consumption of various LCD products is also more and more valued by consumers, and reducing power consumption has become an important issue for manufacturers to develop low-power products. Target. To reduce the power consumption of LCD products, it is necessary to analyze the power consumption of the circuit board, drive circuit, backlight and other parts of the LCD product. Specifically, when analyzing the power consumption of the LCD circuit board, it is necessary to further analyze the power consumption of the main components on the circuit board. [0003] The existing power consumption measurement is mainly realized by a power meter, but the general power meter can only measure the power consumption of th...

Claims

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Application Information

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IPC IPC(8): G01R21/06
CPCG01R21/08G01R21/06
Inventor 徐波
Owner CHONGQING BOE OPTOELECTRONICS
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