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Power testing device and method

A technology of power testing and power information, applied in the direction of measuring devices, electrical devices, measuring electric power, etc., can solve the problem that the central processing unit 101 consumes power, affects the accuracy of measurement data, and the power test method does not conform to scientific refinement Accurate and other problems, to improve the effect of inconvenience and lack

Active Publication Date: 2012-12-05
PEGATRON
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the data obtained by the known power test method is not the actual power consumption of the central processing unit 101
Because during the measurement process, the test substrate 100 must be additionally connected in series with a sensing resistor 103, and the sensing resistor 103 will affect the accuracy of the measurement data.
Therefore, the known power test method does not conform to the spirit of scientific refinement, and this measurement method must also disassemble the secant line, which is time-consuming and labor-intensive

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Embodiment Construction

[0021] Before illustrating the spirit of the present invention with an embodiment, it is assumed that the power testing method of the present invention is applicable to a power testing device, and the power testing device is as figure 2 As shown, the feature is that the power test device 200 includes a circuit to be tested 201 , a voltage converter 202 , an analog-to-digital converter 203 , a display 204 and a test substrate 205 . It is characterized in that the circuit to be tested 201 , the voltage converter 202 , the analog-to-digital converter 203 and the display 204 are all configured on the test substrate 205 . And the circuit under test 201 is coupled to the voltage converter 202 and the display 204 , the voltage converter 202 is coupled to the analog-to-digital converter 203 , and the analog-to-digital converter 203 is coupled to the circuit under test 201 .

[0022] It is worth mentioning that the above assumptions are not intended to limit the present invention, and...

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Abstract

The invention provides a method and a device for testing power. The method comprises the following steps that: firstly, control information is generated by a circuit to be tested, a specific voltage and a sensing signal are generated according to the control information; afterwards, the sensing signal is converted into ratio information to obtain and display power information by calculating the ratio information. Therefore, the method can obtain the consumed power of the circuit to be tested without dismounting a plate or cutting a wire, etc.

Description

technical field [0001] The present invention relates to a power testing method and device, and in particular to a power testing method and device without external sense resistors. Background technique [0002] With the continuous advancement of science and technology, various electronic products are constantly being introduced, especially the emergence of computers, which has completely changed people's living patterns. In the field of computers, the former desktop computers have gradually transformed into short, thin and light portable computers, such as Notebook PCs, Pocket PCs, and Tablet PCs. [0003] In a computer system, the power consumption of a central processing unit (CPU) accounts for most of the power consumption of the entire computer system. The power consumption of the central processing unit increases according to the increase of operating frequency and operating voltage. For portable computers mainly powered by batteries, the power consumption of the centra...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R21/00G06F11/22
Inventor 柯俊伟
Owner PEGATRON