JP7472645B2 - 駆動回路内蔵型パワーモジュール - Google Patents
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- 238000001514 detection method Methods 0.000 claims description 67
- 239000003990 capacitor Substances 0.000 claims description 21
- 238000010586 diagram Methods 0.000 description 18
- ORQBXQOJMQIAOY-UHFFFAOYSA-N nobelium Chemical compound [No] ORQBXQOJMQIAOY-UHFFFAOYSA-N 0.000 description 11
- 230000003111 delayed effect Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/28—Modifications for introducing a time delay before switching
- H03K17/284—Modifications for introducing a time delay before switching in field effect transistor switches
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/22—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral
- H03K5/24—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being amplitude
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
- G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0009—Devices or circuits for detecting current in a converter
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
- H02M1/084—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters using a control circuit common to several phases of a multi-phase system
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/38—Means for preventing simultaneous conduction of switches
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
- H02M7/53871—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/28—Arrangements for controlling current
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
- H03K17/082—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit
- H03K17/0828—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit in composite switches
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/28—Modifications for introducing a time delay before switching
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/153—Arrangements in which a pulse is delivered at the instant when a predetermined characteristic of an input signal is present or at a fixed time interval after this instant
- H03K5/1534—Transition or edge detectors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K2005/00013—Delay, i.e. output pulse is delayed after input pulse and pulse length of output pulse is dependent on pulse length of input pulse
- H03K2005/00019—Variable delay
- H03K2005/00058—Variable delay controlled by a digital setting
- H03K2005/00071—Variable delay controlled by a digital setting by adding capacitance as a load
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Power Conversion In General (AREA)
- Inverter Devices (AREA)
- Pulse Circuits (AREA)
- Electronic Switches (AREA)
Description
この可変遅延回路41Aおよび電流検出回路44Aによれば、スイッチング素子50がターンオフする等してコレクタ電流が小さいときには、電流検出回路44Aは、ハイレベルの出力信号を出力する。これにより、可変遅延回路41Aでは、スイッチ41hがクローズされてRC回路の容量値が大きくなることで、可変遅延回路41Aは、時定数が大きく、長い遅延時間が設定される。
20 ハイサイド駆動回路
21 レベルシフト回路
22,22A 可変遅延回路
22a,22b 抵抗
22c コンデンサ
22d スイッチ
22e 抵抗
22f,22g コンデンサ
22h スイッチ
23 ドライバ回路
24 出力回路
25,25A 電流検出回路
25a,25b 抵抗
25c 比較器
25d 基準電圧源
26,27 MOSFET
30 スイッチング素子
40 ローサイド駆動回路
41,41A 可変遅延回路
41a,41b 抵抗
41c コンデンサ
41d スイッチ
41e 抵抗
41f,41g コンデンサ
41h スイッチ
42 ドライバ回路
43 出力回路
44,44A 電流検出回路
44a,44b 抵抗
44c 比較器
44d 基準電圧源
45,46 MOSFET
50 スイッチング素子
Claims (9)
- ハーフブリッジ回路を構成するよう接続されたハイサイドスイッチング素子およびローサイドスイッチング素子と、前記ハイサイドスイッチング素子を駆動するハイサイド駆動回路と、前記ローサイドスイッチング素子を駆動するローサイド駆動回路とを備えた駆動回路内蔵型パワーモジュールにおいて、
前記ハイサイドスイッチング素子の電流を検出するハイサイド電流検出回路をさらに備え、
前記ハイサイド駆動回路は、前記ハイサイド電流検出回路の検出値に応じて、前記ハイサイド駆動回路に信号が入力されてから、前記ハイサイドスイッチング素子が駆動されるまでのハイサイド遅延時間の長さを、前記ハイサイドスイッチング素子がターンオンのときよりもターンオフのときに短くすることで調整するハイサイド可変遅延回路を有し、
前記ハイサイド電流検出回路は、前記ハイサイドスイッチング素子がオンしているとき、前記ハイサイドスイッチング素子を流れる電流値が設定電流値を超えたか否かを検出することによって、前記ハイサイド可変遅延回路の前記ハイサイド遅延時間の長さを切り替える、
駆動回路内蔵型パワーモジュール。 - 前記ハイサイド可変遅延回路は、抵抗およびコンデンサを有し、前記抵抗の抵抗値を可変して時定数を変えることにより前記ハイサイド遅延時間の長さを調整する、請求項1記載の駆動回路内蔵型パワーモジュール。
- 前記ハイサイド可変遅延回路は、抵抗およびコンデンサを有し、前記コンデンサの容量値を可変して時定数を変えることにより前記ハイサイド遅延時間の長さを調整する、請求項1記載の駆動回路内蔵型パワーモジュール。
- 前記ハイサイド可変遅延回路は、前記ハイサイド電流検出回路が前記ハイサイドスイッチング素子を流れる電流値が前記設定電流値を超えたことを検出したとき、前記ハイサイド遅延時間を長さの短い遅延時間に切り替える、請求項1記載の駆動回路内蔵型パワーモジュール。
- 前記ハイサイドスイッチング素子は、電流センス素子を内蔵し、前記ハイサイド電流検出回路は、前記ハイサイドスイッチング素子を流れる電流値として前記電流センス素子が出力する電流値を検出する、請求項1記載の駆動回路内蔵型パワーモジュール。
- 前記ハイサイドスイッチング素子および前記ローサイドスイッチング素子は、電圧制御型デバイスである、請求項1記載の駆動回路内蔵型パワーモジュール。
- 前記電圧制御型デバイスは、IGBTまたはパワーMOSFETである、請求項6記載の駆動回路内蔵型パワーモジュール。
- 前記ローサイドスイッチング素子の電流を検出するローサイド電流検出回路をさらに備え、
前記ローサイド駆動回路は、前記ローサイド電流検出回路の検出値に応じて、前記ローサイド駆動回路に信号が入力されてから、前記ローサイドスイッチング素子が駆動されるまでのローサイド遅延時間の長さを調整するローサイド可変遅延回路を有している、
請求項1記載の駆動回路内蔵型パワーモジュール。 - ハーフブリッジ回路を構成するよう接続されたハイサイドスイッチング素子およびローサイドスイッチング素子と、前記ハイサイドスイッチング素子を駆動するハイサイド駆動回路と、前記ローサイドスイッチング素子を駆動するローサイド駆動回路とを備えた駆動回路内蔵型パワーモジュールにおいて、
前記ハイサイドスイッチング素子の電流を検出するハイサイド電流検出回路をさらに備え、
前記ハイサイド駆動回路は、前記ハイサイド電流検出回路の検出値に応じて、前記ハイサイド駆動回路に信号が入力されてから、前記ハイサイドスイッチング素子が駆動されるまでのハイサイド遅延時間の長さを、時定数を可変して調整するハイサイド可変遅延回路を有し、
前記可変遅延回路は、
前記ハイサイド電流検出回路によって前記ハイサイドスイッチング素子のターンオン時に流れる電流値が設定電流値を超えない状態が検出された場合、第1の時定数にもとづく前記ハイサイド遅延時間を設定し、
前記ハイサイド電流検出回路によって前記ハイサイドスイッチング素子のターンオン時に流れる前記電流値が前記設定電流値を超える状態が検出された場合、前記第1の時定数よりも小さな第2の時定数にもとづく前記ハイサイド遅延時間を設定して、前記ハイサイド遅延時間の長さを前記ハイサイドスイッチング素子がターンオンのときよりもターンオフのときに短くする、
駆動回路内蔵型パワーモジュール。
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JP2020084784A JP7472645B2 (ja) | 2020-05-13 | 2020-05-13 | 駆動回路内蔵型パワーモジュール |
US17/211,563 US11621709B2 (en) | 2020-05-13 | 2021-03-24 | Power module with built-in drive circuits |
CN202110325031.4A CN113676022A (zh) | 2020-05-13 | 2021-03-26 | 驱动电路内置型功率模块 |
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JP2020084784A JP7472645B2 (ja) | 2020-05-13 | 2020-05-13 | 駆動回路内蔵型パワーモジュール |
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JP7472645B2 true JP7472645B2 (ja) | 2024-04-23 |
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US20230318486A1 (en) * | 2022-01-11 | 2023-10-05 | En2Core Technology, Inc. | Power Supply and Method of Supplying Power To Load |
CN115133626A (zh) * | 2022-08-09 | 2022-09-30 | 湖北亿纬动力有限公司 | 电池保护电路及其控制方法和电池管理系统 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002369498A (ja) | 2001-06-07 | 2002-12-20 | Fuji Electric Co Ltd | 電力用半導体素子のゲート駆動回路 |
JP2003284318A (ja) | 2002-01-17 | 2003-10-03 | Mitsubishi Electric Corp | 電力用半導体素子の駆動回路 |
WO2009090703A1 (ja) | 2008-01-18 | 2009-07-23 | Panasonic Corporation | ランプ波出力回路、アナログデジタル変換回路、及びカメラ |
JP2016019096A (ja) | 2014-07-07 | 2016-02-01 | 株式会社デンソー | ゲート駆動回路 |
US20180054117A1 (en) | 2016-08-19 | 2018-02-22 | Sanken Electric Co., Ltd. | Control circuit of switching power-supply device and switching power-supply device |
WO2020017169A1 (ja) | 2018-07-17 | 2020-01-23 | 富士電機株式会社 | 駆動回路内蔵型パワーモジュール |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5144525A (en) * | 1990-09-27 | 1992-09-01 | Tektronix, Inc. | Analog acquisition system including a high speed timing generator |
CA2232199C (en) | 1997-04-22 | 2000-02-22 | Kabushiki Kaisha Toshiba | Power converter with voltage drive switching element |
JPH10337046A (ja) | 1997-06-02 | 1998-12-18 | Toshiba Corp | 電力変換装置 |
JP3854190B2 (ja) | 2002-04-26 | 2006-12-06 | 株式会社ジェイテクト | モータ制御装置 |
JP6349897B2 (ja) | 2014-04-11 | 2018-07-04 | 株式会社デンソー | 駆動回路のタイミング調整方法及び駆動回路のタイミング調整回路 |
JP6486139B2 (ja) * | 2015-02-23 | 2019-03-20 | ローム株式会社 | デッドタイム調整回路 |
JP2017055627A (ja) * | 2015-09-11 | 2017-03-16 | 株式会社東芝 | 半導体装置及びdc−dcコンバータ |
WO2020153904A1 (en) * | 2019-01-25 | 2020-07-30 | Agency For Science, Technology And Research | A comparator for controlling dead-time between switching transistors |
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2020
- 2020-05-13 JP JP2020084784A patent/JP7472645B2/ja active Active
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2021
- 2021-03-24 US US17/211,563 patent/US11621709B2/en active Active
- 2021-03-26 CN CN202110325031.4A patent/CN113676022A/zh active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002369498A (ja) | 2001-06-07 | 2002-12-20 | Fuji Electric Co Ltd | 電力用半導体素子のゲート駆動回路 |
JP2003284318A (ja) | 2002-01-17 | 2003-10-03 | Mitsubishi Electric Corp | 電力用半導体素子の駆動回路 |
WO2009090703A1 (ja) | 2008-01-18 | 2009-07-23 | Panasonic Corporation | ランプ波出力回路、アナログデジタル変換回路、及びカメラ |
JP2016019096A (ja) | 2014-07-07 | 2016-02-01 | 株式会社デンソー | ゲート駆動回路 |
US20180054117A1 (en) | 2016-08-19 | 2018-02-22 | Sanken Electric Co., Ltd. | Control circuit of switching power-supply device and switching power-supply device |
WO2020017169A1 (ja) | 2018-07-17 | 2020-01-23 | 富士電機株式会社 | 駆動回路内蔵型パワーモジュール |
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CN113676022A (zh) | 2021-11-19 |
US20210359676A1 (en) | 2021-11-18 |
JP2021180562A (ja) | 2021-11-18 |
US11621709B2 (en) | 2023-04-04 |
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