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Segmented DC power supply system with common impedance compensation unit

A technology of impedance compensation and power supply system, which is applied in the direction of control/regulation system, adjustment of electric variables, instruments, etc., can solve the problem of inaccurate current control, etc., and achieve the effect of simple structure and good current control accuracy

Active Publication Date: 2019-10-22
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problem of inaccurate current control in the existing segmented DC power supply system in the workplace with a wide DC voltage range, the present invention provides a segmented DC power supply system with a shared impedance compensation unit, using a shared impedance The compensation unit realizes the suppression of the range of voltage difference inside multiple controlled current source ports s+ and s-, and achieves the overall effect of improving the accuracy of current control

Method used

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  • Segmented DC power supply system with common impedance compensation unit
  • Segmented DC power supply system with common impedance compensation unit
  • Segmented DC power supply system with common impedance compensation unit

Examples

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Embodiment 1

[0030] refer to Figure 2 to Figure 5 , the impedance compensation unit is located at the high end, the positive terminal vo+ of the DC output power supply is connected to the port a of the impedance compensation unit, the port vc of the function generator, and the port vc of the section controller at the same time, and the impedance compensation unit port b of the first voltage-type load is connected to the positive terminal l1+ of the first voltage-type load, and the negative terminal lk- of the K-th voltage-type load is simultaneously connected to the port sk+ of the K-th controlled current source and the positive terminal lk+1 of the K+1-th voltage-type load + is connected, the value range of K is 1 to N-1, the value range of k is 1 to n-1, the negative terminal ln- of the Nth voltage type load is connected with the port sn+ of the Nth controlled current source, and the The port s1- of the 1st controlled current source to the port sn- of the Nth controlled current source a...

Embodiment 2

[0036] refer to Figure 6 to Figure 9 , the impedance compensation unit is located at the low end, and the positive terminal vo+ of the DC output power supply is simultaneously connected with the port s1+ of the first controlled current source to the port sn+ of the Nth controlled current source, the port vc of the function generator and the segment The port vc of the controller is connected, the port sn- of the Nth controlled current source is connected to the port ln+ of the Nth voltage type load, the negative terminal lk- of the Kth voltage type load is connected to the positive end of the K-1th voltage type load The terminal lk-1+ is connected to the terminal sk-1- of the K-1 controlled current source, the value range of K is N to 2, the value range of k is n to 2, the negative terminal of the first voltage load l1- is connected to port a of the impedance compensation unit, port b of the impedance compensation unit is connected to the negative terminal vo- of the DC output...

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Abstract

A sectional direct-current power supply system comprising a shared impedance compensation unit comprises a direct-current output power source, the impedance compensation unit, a function generator, asectional controller, first-Nth controlled current sources and first-Nth voltage-type loads. A connection mode in which the impedance compensation unit is at a high end can be adopted, and a connection mode in which the impedance compensation unit is at a low end can be adopted. Impedance of the impedance compensation unit is adjusted dynamically through state feedback of the first-Nth controlledcurrent sources, working voltage difference inside the first-Nth controlled current sources can be inhibited in working occasions within a wide direct-current voltage range, and high-accuracy currentcontrol can be realized.

Description

technical field [0001] The invention relates to a segmented direct current power supply system, which is mainly applied to working occasions with a wide direct current voltage range. Applicable voltage loads include LEDs, storage batteries, supercapacitors and the like. Background technique [0002] Such as figure 1 As shown, a common segmented DC power supply system consists of a DC output power supply, a function generator, a segmented controller, the first controlled current source to the Nth controlled current source, and the first voltage type load to the Nth voltage Type load composition. The sub-section controller decides according to the voltage value of its port vc and controls the shutdown states of the first controlled current source to the Nth controlled current source respectively through its ports e1 to en. The function generator is the control source from the first controlled current source to the Nth controlled current source, and the current flowing throug...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05F1/56
Inventor 陈怡
Owner ZHEJIANG UNIV OF TECH