JP2018182899A5 - Drive circuit and power converter - Google Patents
Drive circuit and power converter Download PDFInfo
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- JP2018182899A5 JP2018182899A5 JP2017079196A JP2017079196A JP2018182899A5 JP 2018182899 A5 JP2018182899 A5 JP 2018182899A5 JP 2017079196 A JP2017079196 A JP 2017079196A JP 2017079196 A JP2017079196 A JP 2017079196A JP 2018182899 A5 JP2018182899 A5 JP 2018182899A5
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- 230000000875 corresponding Effects 0.000 claims description 9
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Description
本発明の実施形態は、並列接続された複数のスイッチング素子を同時駆動する時に電流アンバランスを抑制することが可能な駆動回路、および電力変換装置を提供することを目的とする。 Embodiments of the present invention aims at providing driving dynamic circuit capable of suppressing the current imbalance when simultaneously driving a plurality of switching elements connected in parallel, and the power converter.
一実施形態によれば、駆動回路は、並列接続された複数のスイッチング素子を同時に駆動するための駆動信号を生成するパルス発生器と、駆動信号を入力するとともに、それぞれが複数のスイッチング素子の一つに対応する複数の電流バランス制御回路と、を備える。複数の電流バランス制御回路のそれぞれは、入力した駆動信号をスイッチング素子へ伝送するための複数の伝送路と、複数の伝送路それぞれに設けられ、互いに異なる抵抗値を有する複数の抵抗器と、対応するスイッチング素子へ入力される第１電圧または対応するスイッチング素子から出力される第２電圧である入力電圧と、基準電圧とを比較するコンパレータと、比較した結果に基づいて、駆動信号を伝送する経路として前記複数の伝送路のうち一つを選択するスイッチと、を有する。 According to one embodiment, drive dynamic circuit includes a pulse generator for generating a drive signal for driving parallel connected plurality of switching elements simultaneously inputs the drive motion signal, each plurality of switching elements And a plurality of current balance control circuits corresponding to one of the above . Each of the plurality of current balance control circuit, a plurality of transmission paths for transmitting a driving signal input to the switching element, is provided to each of the plurality of transmission paths, and a plurality of resistors having different resistance values from each other, corresponding a first voltage or a corresponding input voltage is the second voltage output from the switching element is input to the switching element, a comparator you compare the reference voltage, based on a result of comparison, a drive signal having a switch for selecting one of the plurality of transmission paths as a path for transmitting.
Claims (5)
前記駆動信号を入力するとともに、それぞれが前記複数のスイッチング素子の一つに対応する複数の電流バランス制御回路と、を備え、
前記複数の電流バランス制御回路のそれぞれは、
前記入力した駆動信号を前記スイッチング素子へ伝送するための複数の伝送路と、
前記複数の伝送路それぞれに設けられ、互いに異なる抵抗値を有する複数の抵抗器と、
前記対応するスイッチング素子へ入力される第１電圧または前記対応するスイッチング素子から出力される第２電圧である入力電圧と、基準電圧とを比較するコンパレータと、
前記比較した結果に基づいて、前記駆動信号を伝送する経路として前記複数の伝送路のうち一つを選択するスイッチと、を有する
駆動回路。 A pulse generator that generates a drive signal for simultaneously driving a plurality of switching elements connected in parallel,
With pre-enter a hear motion signal comprises a plurality of current balance control circuit, each corresponding to one of said plurality of switching elements, and
Each of the plurality of current balance control circuits,
A plurality of transmission paths for transmitting the input drive signal to the switching element ,
Provided in the plurality of transmission paths, respectively, and a plurality of resistors having different resistance values from each other,
A first voltage or said corresponding input voltage is the second voltage output from the switching element is input to the switching element said corresponding, a comparator you a reference voltage comparison,
Based on the result of comparison; and a switch for selecting one of the plurality of transmission paths as a path for transmitting the driving signal
Drive dynamic circuit.
前記比較した結果、前記入力電圧が、前記基準電圧よりも高い場合、前記スイッチは、前記駆動信号を伝送する経路として前記第２伝送路を選択する、請求項１に記載の駆動回路。 The plurality of transmission lines include a first transmission line having a first resistor, and a second transmission line having a second resistor having a larger resistance value than the first resistor,
As a result of the comparison, the input voltage is higher than the reference voltage, said switch selects the second transmission path as a path for transmitting the driving signal, driving the dynamic circuit of claim 1.
前記複数のスイッチング素子を同時に駆動するための駆動信号を生成するパルス発生器と、
前記駆動信号を入力するとともに、それぞれが前記複数のスイッチング素子の一つに対応する電流バランス制御回路と、を備え、
前記複数の電流バランス制御回路のそれぞれは、
前記入力した駆動信号を前記スイッチング素子へ伝送するための複数の伝送路と、
前記複数の伝送路それぞれに設けられ、互いに異なる抵抗値を有する複数の抵抗器と、
前記対応するスイッチング素子へ入力される第１電圧または前記対応するスイッチング素子から出力される第２電圧と、基準電圧とを比較するコンパレータと、
前記比較した結果に基づいて、前記駆動信号を伝送する経路として前記複数の伝送路のうち一つを選択するスイッチと、を有する
電力変換装置。 A plurality of switching elements connected in parallel;
A pulse generator that generates a drive signal for simultaneously driving the plurality of switching elements,
With pre-enter a hear motion signal comprises a current balance control circuit, each corresponding to one of said plurality of switching elements, and
Each of the plurality of current balance control circuits ,
A plurality of transmission paths for transmitting the input drive signal to the switching element ,
Provided in the plurality of transmission paths, respectively, and a plurality of resistors having different resistance values from each other,
A second voltage output from the switching element to the first voltage or the corresponding input the to the corresponding switching element, a comparator that compares a reference voltage,
A power converter, comprising : a switch for selecting one of the plurality of transmission paths as a path for transmitting the drive signal based on the comparison result .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017079196A JP2018182899A (en) | 2017-04-12 | 2017-04-12 | Gate drive circuit and power conversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017079196A JP2018182899A (en) | 2017-04-12 | 2017-04-12 | Gate drive circuit and power conversion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2018182899A JP2018182899A (en) | 2018-11-15 |
| JP2018182899A5 true JP2018182899A5 (en) | 2020-03-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2017079196A Pending JP2018182899A (en) | 2017-04-12 | 2017-04-12 | Gate drive circuit and power conversion device |
Country Status (1)
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| JP (1) | JP2018182899A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113315353B (en) * | 2021-06-24 | 2022-04-01 | 南通大学 | SiC MOSFET parallel driving circuit with gate-source impedance dynamically adjusted and active current sharing |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10108477A (en) * | 1996-09-30 | 1998-04-24 | Mitsutoyo Corp | Inverter circuit |
| JP2000197343A (en) * | 1998-12-24 | 2000-07-14 | Toshiba Corp | Gate control method for semiconductor element |
| JP4816139B2 (en) * | 2006-02-27 | 2011-11-16 | 株式会社日立製作所 | Power semiconductor switching element drive circuit |
| JP6089599B2 (en) * | 2012-11-01 | 2017-03-08 | 富士電機株式会社 | Insulated gate semiconductor device driving apparatus |
| JP6171553B2 (en) * | 2013-05-17 | 2017-08-02 | 富士電機株式会社 | Power converter |
| US9804613B2 (en) * | 2013-07-22 | 2017-10-31 | The Boeing Company | Parallel transistor circuit controller |
| JP6350301B2 (en) * | 2015-01-22 | 2018-07-04 | 株式会社デンソー | Load drive control device and load drive control method |
| JP6616576B2 (en) * | 2015-02-12 | 2019-12-04 | 株式会社デンソー | Driving circuit |
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- 2017-04-12 JP JP2017079196A patent/JP2018182899A/en active Pending
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