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Power supply device with electric wire drop compensation

A power supply device and voltage drop compensation technology, which is applied in the direction of adjusting electrical variables, control/regulation systems, instruments, etc., can solve the problems of reducing the reliability of power transmission lines and increasing the cost of power transmission lines, so as to improve the instantaneous drop of load voltage, The effect of improving stability

Active Publication Date: 2017-01-11
ACER INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this extra sense wire may reduce the reliability of the power transmission line and increase the cost of the power transmission line

Method used

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  • Power supply device with electric wire drop compensation
  • Power supply device with electric wire drop compensation
  • Power supply device with electric wire drop compensation

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Embodiment Construction

[0067] In order to make the content of the present invention more comprehensible, the following specific embodiments are taken as examples in which the present invention can be implemented. In addition, wherever possible, elements / members / steps with the same reference numerals are used in the drawings and embodiments to represent the same or similar parts.

[0068] Please refer to the following figure 1 , figure 1 It is a schematic diagram of a power supply device 100 with cable voltage drop compensation according to an embodiment of the present invention. Such as figure 1 As shown, the power supply device 100 can supply power to an external load 900 . The external load 900 can be, for example, an electronic device such as a mobile phone, a tablet computer, a notebook computer, or a power bank, but the present invention is not limited thereto. The power supply device 100 may include a first power pin P1 , a second power pin P2 , a DC output regulator 110 , a current sensin...

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Abstract

The invention provides a power supply device with electric wire drop compensation. The power supply device comprises a first power source pin, a second power source pin, a direct current output voltage stabilizer, a current sensing circuit and a compensation circuit, wherein the first power source pin and the second power source pin are coupled to external loads by a first wire and a second wire respectively; the direct current output voltage stabilizer receives an input voltage and a feedback voltage, and generates an output voltage and an output current on the basis; the current sensing circuit is used to sense the output current and generate a sensing voltage on the basis; the compensation circuit responds to the sensing voltage so as to generate a compensation voltage, wherein the compensation voltage is equal to the sum of a voltage drop of the first wire and a voltage drop of the second wire; and the compensation circuit compensates the output voltage according to the compensation voltage, so that a load voltage of the external loads can be maintained at a stable voltage value.

Description

technical field [0001] The present invention relates to a power supply device, and in particular to a power supply device with wire voltage drop compensation. Background technique [0002] Generally speaking, most power supply devices can be coupled to loads (such as electronic devices such as mobile phones, tablet computers, notebook computers, or power banks) through power transmission cables (cables) to supply power (or charge) to the loads. However, the power transmission line itself usually has impedance. When the load increases so that the current passing through the power transmission line increases, the impedance of the power transmission line itself or the connector of the power transmission line will produce a significant voltage drop. Since the output voltage provided by the power supply device is usually a constant value, the load voltage transmitted to the load terminal through the power transmission line will decrease as the current increases. In this way, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05F1/56
Inventor 吕基男
Owner ACER INC
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