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Method and voltage multiplier for converting input voltage, and isolating circuit

An input voltage and voltage multiplier technology, applied in emergency protection circuit devices, circuits, and conversion equipment without intermediate conversion to AC for limiting overcurrent/overvoltage, etc., can solve problems such as voltage rise, loss, etc., Achieve the effect of reducing the switching delay time, high driving speed, and fast driving

Active Publication Date: 2019-10-29
ELLENBERGER POENSGEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The time required for this voltage rise leads to additional losses on the mechanical (switch) contacts

Method used

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  • Method and voltage multiplier for converting input voltage, and isolating circuit
  • Method and voltage multiplier for converting input voltage, and isolating circuit
  • Method and voltage multiplier for converting input voltage, and isolating circuit

Examples

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Embodiment Construction

[0043] figure 1 Schematically shows the input voltage for the U E transforms the input voltage relative to this U E boosted output voltage U A The voltage doubler 2. Input voltage U E In this case, the input side is applied between the first terminal connection or positive pole 4 and the second terminal connection or negative pole 6 , wherein the output voltage U can be tapped off at the pick-off point 8 A .

[0044] The voltage doubler 2 has a control unit 10 eg in the form of a controller. The control unit 10 is signal-coupled to several voltage stages 12 connected in parallel between the terminal connections 4 , 6 and the tap point 8 . exist figure 1 For example, three such voltage levels 12 are shown in FIG.

[0045] A line 14 runs between the positive pole 4 and the intercept point 8 , along which line 14 the voltage stages 12 are connected in parallel with one another. Each voltage stage 12 here has a series connection 16 of a rectifier diode 18 and a charging c...

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PUM

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Abstract

The invention relates to a method for converting an input voltage (UE) into an output voltage (UA), which is increased in comparison with the latter, by means of a number of voltage stages (12, 12a, 12b) that each have a series circuit (16), connected to a reference-earth potential (UG), comprising a rectifier diode (18, D7, D9) and a charging capacitor (20, C2, C4) and also a switchable first semiconductor switch (22, Q16, Q18), wherein in each voltage stage (12, 12a, 12b) a switchable second semiconductor switch (24, Q1, Q17) is connected in parallel with the rectifier diode (18, D7, D9) andthe charging capacitor (20, C2, C4), and wherein the rectifier diodes (18, D7, D9) of adjacent voltage stages (12, 12a, 12b) are connected in series, in which first of all the first semiconductor switches (22, Q16, Q18) are closed and the second semiconductor switches (24, Q1, Q17) are opened, so that the charging capacitors (20, C2, C4) of the voltage stages (12, 12a, 12b) are charged by means of the input voltage (UE), and in which subsequently the first semiconductor switches (22, Q16, Q18) are opened and the second semiconductor switches (24, Q1, Q17) are closed, so that the individual voltages (UZ) produced on the charging capacitors (20, C2, C4) add up along the series-connected rectifier diodes (18, D7, D9) to produce the output voltage (UA).

Description

technical field [0001] The invention relates to a method for converting an input voltage into an output voltage that is raised relative to the input voltage. The invention furthermore relates to a voltage doubler operated according to such a method, and a disconnecting device equipped with such a voltage doubler for direct current interruption between a direct current source and an electrical device. In this case, a direct current source is to be understood in particular as a photovoltaic generator (PV generator, solar system), and an electrical device is to be understood in particular as an inverter. Background technique [0002] From DE 20 2008 010 312 U1 a photovoltaic system (PV system) is known which has a so-called photovoltaic generator which in turn consists of photovoltaic modules combined in groups to form sub-generators, the photovoltaic modules themselves being in series or in parallel branches. The DC current power of the photovoltaic generator is fed into the...

Claims

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Application Information

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IPC IPC(8): H02M3/07H02M1/08H02M1/32H02H3/00H02M1/36H02M1/00
CPCH02M1/32H02M1/36H02M3/07H03K17/063H03K2217/0081H02H9/041H02M1/08Y02E10/50H02M1/0006Y02E10/56H02S40/32H01H9/30H01H9/542H01H2009/544H02H7/20H02M3/073
Inventor 迪尔克·博舍恩斯特-迪特尔·威尔克宁
Owner ELLENBERGER POENSGEN