WO2014178529A1 - 능동 다이오드 드라이버 - Google Patents
능동 다이오드 드라이버 Download PDFInfo
- Publication number
- WO2014178529A1 WO2014178529A1 PCT/KR2014/001965 KR2014001965W WO2014178529A1 WO 2014178529 A1 WO2014178529 A1 WO 2014178529A1 KR 2014001965 W KR2014001965 W KR 2014001965W WO 2014178529 A1 WO2014178529 A1 WO 2014178529A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- switch
- voltage
- active
- zero
- turn
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/687—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/13—Modifications for switching at zero crossing
- H03K17/133—Modifications for switching at zero crossing in field-effect transistor switches
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/16—Modifications for eliminating interference voltages or currents
- H03K17/161—Modifications for eliminating interference voltages or currents in field-effect transistor switches
- H03K17/165—Modifications for eliminating interference voltages or currents in field-effect transistor switches by feedback from the output circuit to the control circuit
- H03K17/166—Soft switching
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/30—Modifications for providing a predetermined threshold before switching
- H03K17/302—Modifications for providing a predetermined threshold before switching in field-effect transistor switches
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/74—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of diodes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/01—Details
- H03K3/012—Modifications of generator to improve response time or to decrease power consumption
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/30—Modifications for providing a predetermined threshold before switching
- H03K2017/307—Modifications for providing a predetermined threshold before switching circuits simulating a diode, e.g. threshold zero
Definitions
- the present invention relates to an active rectifier using an active diode, and more particularly to a technique for driving a switch of the active rectifier.
- FIG. 1 is a circuit diagram of an active rectifier using a conventional active diode.
- the active rectifier 10 replaces an existing bridge diode circuit by using a MOSFET.
- the MOSFET can reduce conduction loss and can be integrated using IC technology.
- the active diode 20 constituting the active rectifier 10 is composed of a MOSFET switch M1, and the parasitic diode D1 is located between the drain and the source as shown in FIG. .
- the comparator 21 turns on M1 when the V, K, A (Cathode, Anode) voltage is less than 0V. Since the comparator 21 itself is difficult to supply sufficient current for driving M1 at high speed, the comparator 21 drives M1 using a gate driver 22 having sufficient current driving capability.
- FIG. 2 is an operational waveform diagram when the active diode of FIG. 1 is driven.
- FIG. 3 is a diagram illustrating an active diode that achieves turn-on delay compensation using an offset
- FIG. 4 is a view illustrating an operation waveform when the delay compensation is performed using an offset.
- FIG. 5 is a VKA of 0 or more and less than Voff.
- M1 is a hard turn-on (hard turn-on) when showing the phenomenon.
- FIG. 3 illustrates a case in which the comparator 21 is operated by applying an offset. Since the output of the comparator 21 becomes high before VKA becomes zero by Voff, as shown in FIG. 4, the time point when M1 is turned on after td1 + td2 is advanced, thereby obtaining more ideal diode characteristics. However, as shown in FIG. 5, even when VKA is greater than 0 and maintained while satisfying Voff or less, M1 may be turned on so that the active diode 20 may be reverse turn-on. At this time, since the MOSFET is fully turned on and the drain-source resistance Rdson is very small, a large amount of current can flow, and this situation is not caused by normal diode operation. Will cause.
- An object of the present invention is to provide a technical scheme for effectively driving a switch used in an active rectifier in implementing an active rectifier using an active diode.
- An active diode driver for driving a switch of an active rectifier using an active diode according to an aspect of the present invention for achieving the above-described technical problem is primarily a soft turn-on control of the switch, and secondly The switch is hard turned on.
- the active diode driver first soft-turns on the switch when the voltage across the parasitic diode of the switch approaches zero, and hard-turns on the switch as the secondary when the voltage across the parasitic diode reaches zero. .
- the active diode driver may include: a proximity zero cross detector for generating an output signal when the voltage across the parasitic diode of the switch is close to zero, a zero cross detector for detecting the point of time when the voltage across the parasitic diode becomes zero; And a gate driver for soft turn-on control of the switch by receiving the output signal of the proximity zero cross detector, and subsequently hardly turning on the switch by receiving the output signal of the zero cross detector.
- the proximity zero cross detector generates an output signal when the voltage across the parasitic diode is less than or equal to the trigger voltage of the proximity zero cross detector.
- the proximity zero cross detector includes a second switch that is turned off when the threshold voltage is the trigger voltage and the gate voltage is less than or equal to the threshold voltage to increase the drain voltage to generate an output signal.
- the active driver according to the present invention uses a near zero-cross detector and a conventional zero-cross detector to control the gate driving voltage to dual step so as to be softly turned on.
- the active rectifier switches on naturally, reducing conduction losses, improving EMI, and preventing overcurrent from flowing even when the active diode voltage remains near zero.
- FIG. 1 is a circuit diagram of an active rectifier using a conventional active diode.
- FIG. 2 is a diagram showing an operating waveform when the active diode of FIG. 1 is driven.
- 4 is a view showing an operation waveform when the delay compensation using the offset.
- FIG. 5 illustrates a phenomenon in which M1 is hard turn-on when VKA is greater than 0 and less than or equal to Voff.
- FIG 6 illustrates an active diode driver circuit for MOSFET turn-on control in accordance with an embodiment of the present invention.
- FIG. 7 shows MOSFET soft turn-on by the circuit of FIG. 6;
- FIG. 9 is an exemplary view of FIG. 6.
- FIG. 10 illustrates a gate driver according to an embodiment of the present invention.
- FIG. 11 is a view showing driving waveforms of the gate driver shown in FIG. 10; FIG.
- FIG. 12 is a diagram showing simulation results of the circuit shown in FIG. 9.
- FIG. 13 is an enlarged view of an M1 turn-on time point in the simulation waveform of FIG. 12.
- FIG. 6 is a diagram illustrating an active diode driver circuit for MOSFET turn-on control according to an embodiment of the present invention
- FIG. 7 is a diagram illustrating MOSFET soft turn-on by the circuit of FIG. 6. to be.
- the active diode driver has a first soft turn-on control when the switch is turned on and a second hard turn-on control. More specifically, the active diode driver primarily controls the switch soft turn-on when the voltage across the parasitic diode of the switch approaches zero, and hard-on the switch secondarily when the voltage across the parasitic diode reaches zero. To control.
- an embodiment thereof will be described in detail.
- the M1 turn-on controller which is an active diode driver, uses a zero-cross detector (ZCD) for detecting a time point at which the voltages across both K and A become zero, as in the conventional active diode circuit. 100), and further includes a near zero-cross detector (NZCD) 200.
- ZCD zero-cross detector
- NZCD 200 generates an output signal when VKA approaches zero.
- NZCD 200 generates SDRV and ZCD 100 generates HDRV.
- SDRV is a signal for softly turning on the switch M1
- HDRV is a signal for completely turning on M1.
- FIG. 7 explains the operation of the circuit shown in FIG.
- VKA becomes less than VT which is a trigger voltage of the NZCD 200
- an SDRV signal is generated after the delay of the NZCD 200.
- the SDRV signal and the gate driver 300 softly turn on M1.
- the gate voltage is driven lower than when full turn-on, so Rdson operates in a high state. Therefore, the loss is greater than during full turn-on during this period, but less than when only the D1 diode is operated.
- VKA becomes less than or equal to zero
- the ZCD 100 generates an HDRV signal, and M1 is turned on after the delay of the gate driver 300.
- the width of the VKA voltage is large because M1 is turned on while the diode is turned on, but in the method of FIG. 6, the VKA voltage fluctuation is softer than the conventional method, resulting in reduced EMI. In addition, conduction loss is reduced compared to FIG. 2.
- FIG. 8 is a diagram illustrating an operation for suppressing excessive reverse current generation in the circuit of FIG. 6.
- NZCD 200 causes a soft turn-on.
- the output of the ZCD 100 does not occur, it does not become a full turn-on as shown in FIG.
- the soft turn-on Rdson is a relatively large state, a small reverse turn-on current occurs than in the case of FIG. This reduces unnecessary losses and reduces EMI.
- FIG. 9 is an exemplary view of FIG. 6.
- a circuit including the NZCD 200 is illustrated in FIG. 9.
- M3 is always on, and when VKA is greater than VB-VT, the source maximum voltage of M3 is clamped to VB-VT.
- VKA becomes smaller than VB-VT, the source voltage of M3 becomes almost equal to VKA.
- M2 is turned off, so the drain voltage of M2 increases to generate an SDRV signal.
- reference numeral 400 denotes a configuration for switch voltage sense.
- FIG. 10 is a diagram illustrating a gate driver according to an exemplary embodiment of the present invention
- FIG. 11 is a diagram illustrating driving waveforms of the gate driver illustrated in FIG. 10.
- FIG. 10 illustrates a gate driving circuit capable of driving a dual step gate of soft turn-on and full turn-on.
- SDRV When SDRV is high and HDRV is low, it is in soft drive and raises the Vg voltage to the voltage charged in the Cs capacitor.
- M2 When both SDRV and HDRV are high, M2 is turned on, supplying additional charge from VDD, causing the Vg voltage to rise further.
- Cg is Cgs + Cgd and Cs is ⁇ * Cg.
- the gate voltage at soft turn-on is shown in Equation 1.
- Equation 2 The gate voltage at full turn-on is expressed by Equation 2.
- FIG. 12 is a diagram illustrating a simulation result of the circuit illustrated in FIG. 9, and FIG. 13 is an enlarged view of an M1 turn-on time point in the simulation waveform of FIG. 12.
- FIG. 12 illustrates simulation waveforms of VKA, Vg, SDRV, and HDRV
- FIG. 13 is an enlarged view of VKA and Vg waveforms at the M1 turn-on time point.
- the gate voltage is controlled in two stages, and the VKA voltage is controlled to change smoothly at 0V or less.
Landscapes
- Electronic Switches (AREA)
- Power Conversion In General (AREA)
Abstract
Description
Claims (5)
- 능동 다이오드를 이용한 능동 정류기의 스위치를 구동하기 위한 능동 다이오드 드라이버에 있어서,상기 능동 다이오드 드라이버는 일차로 상기 스위치를 소프트 턴 온(soft turn-on) 제어하며, 이차로 상기 스위치를 하드 턴 온(hard turn-on) 제어하는 능동 다이오드 드라이버.
- 제1항에 있어서,상기 능동 다이오드 드라이버는 상기 스위치의 기생 다이오드의 양단 전압이 제로에 근접시 일차로 상기 스위치를 소프트 턴 온 제어하며, 상기 기생 다이오드의 양단 전압이 제로에 도달시 이차로 상기 스위치를 하드 턴 온 제어하는 능동 다이오드 드라이버.
- 제2항에 있어서,상기 스위치의 기생 다이오드의 양단 전압이 제로에 근접시 출력신호를 발생시키는 근접 제로 크로스 검출기;상기 기생 다이오드의 양단 전압이 제로 되는 시점을 검출하여 출력신호를 발생시키는 제로 크로스 검출기; 및상기 근접 제로 크로스 검출기의 출력신호를 입력받아 상기 스위치를 소프트 턴 온 제어하며, 이후 상기 제로 크로스 검출기의 출력신호를 추가로 입력받아 상기 스위치를 하드 턴 온 제어하는 게이트 드라이버;를 포함하는 능동 다이오드 드라이버.
- 제3항에 있어서,상기 근접 제로 크로스 검출기는 상기 기생 다이오드의 양단 전압이 상기 근접 제로 크로스 검출기의 트리거 전압(trigger voltage) 이하가 되면 출력신호를 발생시키는 능동 다이오드 드라이버.
- 제4항에 있어서,상기 근접 제로 크로스 검출기는 문턱 전압이 상기 트리거 전압이고 게이트 전압이 상기 문턱 전압 이하가 되면 오프 되어 드레인(drain) 전압을 상승시켜 출력신호를 발생시키는 제2스위치를 포함하는 능동 다이오드 드라이버.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/781,360 US9419608B2 (en) | 2013-04-30 | 2014-03-10 | Active diode driver |
CN201480024155.7A CN105191136B (zh) | 2013-04-30 | 2014-03-10 | 有源二极管驱动器 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2013-0048528 | 2013-04-30 | ||
KR1020130048528A KR101502153B1 (ko) | 2013-04-30 | 2013-04-30 | 능동 다이오드 드라이버 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014178529A1 true WO2014178529A1 (ko) | 2014-11-06 |
Family
ID=51843617
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2014/001965 WO2014178529A1 (ko) | 2013-04-30 | 2014-03-10 | 능동 다이오드 드라이버 |
Country Status (4)
Country | Link |
---|---|
US (1) | US9419608B2 (ko) |
KR (1) | KR101502153B1 (ko) |
CN (1) | CN105191136B (ko) |
WO (1) | WO2014178529A1 (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3329338A4 (en) * | 2015-07-31 | 2018-07-18 | Texas Instruments Incorporated | Millivolt power harvesting fet controller |
US10128833B2 (en) | 2015-07-31 | 2018-11-13 | Texas Instruments Incorporated | Millivolt power harvesting FET controller |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101462610B1 (ko) * | 2013-06-27 | 2014-11-20 | 주식회사 맵스 | 트랜지스터 턴 오프 제어 방식이 개선된 능동 다이오드 |
JP6371053B2 (ja) * | 2013-12-13 | 2018-08-08 | 株式会社日立製作所 | 整流装置、オルタネータおよび電力変換装置 |
CN104467364B (zh) * | 2014-12-15 | 2017-03-01 | 矽力杰半导体技术(杭州)有限公司 | 一种过零检测电路及开关电源 |
JP6589667B2 (ja) * | 2016-02-02 | 2019-10-16 | Tdk株式会社 | ブリッジレスpfcコンバータ |
TWI678876B (zh) | 2019-01-08 | 2019-12-01 | 朋程科技股份有限公司 | 交流發電機以及整流裝置 |
CN110445402A (zh) * | 2019-07-29 | 2019-11-12 | 深圳市航嘉驰源电气股份有限公司 | 有源二极管电路和交直流电源转换电路 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005295794A (ja) * | 2004-03-31 | 2005-10-20 | Matsushita Electric Ind Co Ltd | アクティブダイオード |
JP2008193282A (ja) * | 2007-02-02 | 2008-08-21 | Mitsubishi Electric Corp | 整流装置 |
US20090140707A1 (en) * | 2007-09-28 | 2009-06-04 | Gerald Deboy | Circuit for an Active Diode and Method for Operating an Active Diode |
KR20120107611A (ko) * | 2011-03-22 | 2012-10-04 | 전자부품연구원 | 정류 소자를 이용한 반도체 스위치 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5506527A (en) * | 1994-04-15 | 1996-04-09 | Hewlett-Packard Compnay | Low power diode |
AU715800B2 (en) * | 1995-12-29 | 2000-02-10 | Em Microelectronic-Marin Sa | Active rectifier having minimal energy losses |
US6469564B1 (en) * | 1998-04-14 | 2002-10-22 | Minebea Co., Ltd. | Circuit simulating a diode |
US7183834B2 (en) * | 2002-10-11 | 2007-02-27 | International Rectifier Corporation | Method and apparatus for driving a power MOS device as a synchronous rectifier |
TWI222754B (en) * | 2002-10-23 | 2004-10-21 | Quanta Comp Inc | One-way conduction apparatus |
US8232830B2 (en) * | 2007-02-02 | 2012-07-31 | Mitsubishi Electric Corporation | Rectifier with less conduction loss than a diode |
JP2009071956A (ja) * | 2007-09-12 | 2009-04-02 | Mitsubishi Electric Corp | ゲート駆動回路 |
WO2010132460A2 (en) * | 2009-05-11 | 2010-11-18 | Semisouth Laboratories, Inc. | Gate driver for enhancement-mode and depletion-mode wide bandgap semiconductor jfets |
-
2013
- 2013-04-30 KR KR1020130048528A patent/KR101502153B1/ko active IP Right Grant
-
2014
- 2014-03-10 US US14/781,360 patent/US9419608B2/en active Active
- 2014-03-10 WO PCT/KR2014/001965 patent/WO2014178529A1/ko active Application Filing
- 2014-03-10 CN CN201480024155.7A patent/CN105191136B/zh not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005295794A (ja) * | 2004-03-31 | 2005-10-20 | Matsushita Electric Ind Co Ltd | アクティブダイオード |
JP2008193282A (ja) * | 2007-02-02 | 2008-08-21 | Mitsubishi Electric Corp | 整流装置 |
US20090140707A1 (en) * | 2007-09-28 | 2009-06-04 | Gerald Deboy | Circuit for an Active Diode and Method for Operating an Active Diode |
KR20120107611A (ko) * | 2011-03-22 | 2012-10-04 | 전자부품연구원 | 정류 소자를 이용한 반도체 스위치 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3329338A4 (en) * | 2015-07-31 | 2018-07-18 | Texas Instruments Incorporated | Millivolt power harvesting fet controller |
US10128833B2 (en) | 2015-07-31 | 2018-11-13 | Texas Instruments Incorporated | Millivolt power harvesting FET controller |
Also Published As
Publication number | Publication date |
---|---|
US9419608B2 (en) | 2016-08-16 |
KR101502153B1 (ko) | 2015-03-12 |
US20160036436A1 (en) | 2016-02-04 |
CN105191136A (zh) | 2015-12-23 |
KR20140129783A (ko) | 2014-11-07 |
CN105191136B (zh) | 2018-03-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2014178529A1 (ko) | 능동 다이오드 드라이버 | |
US11146162B2 (en) | Control method and control circuit for switch in switching power supply | |
CN102231605B (zh) | 一种开关电源副边的同步整流控制电路及反激式开关电源 | |
US9673812B2 (en) | Gate driver and power module equipped with same | |
WO2013013451A1 (zh) | Led背光驱动电路 | |
CN103220855B (zh) | Led电路及其驱动电路和驱动方法 | |
CN106537744A (zh) | 同步整流 | |
TWI637380B (zh) | 一種實現閘極驅動電路的系統和方法 | |
CN101964172B (zh) | 一种led控制电路 | |
CN103108470A (zh) | 动态线性控制led驱动电路 | |
JP6370279B2 (ja) | ブートストラップ補償回路およびパワーモジュール | |
CN105226919A (zh) | 一种功率mosfet的软驱动方法及电路 | |
US20180152188A1 (en) | System and Method of Driving a Switch Circuit | |
CN109194098A (zh) | 一种同步整流采样电路 | |
CN111342642A (zh) | 一种用于碳化硅mosfet驱动的反激式电源控制方法 | |
EP4089897A1 (en) | System and method for controlling totem pole power factor correction circuit, and power adapter | |
CN115347799A (zh) | 一种应用于反激式变换器的同步整流驱动控制方法及系统 | |
WO2014208885A1 (ko) | 트랜지스터 턴 오프 제어 방식이 개선된 능동 다이오드 | |
KR20130057320A (ko) | 스위치 제어기, 스위치 제어 방법, 및 스위치 제어기를 포함하는 전력 공급 장치 | |
US20220209653A1 (en) | Totem-pole power factor correction circuit | |
CN211655982U (zh) | 一种开关电源及照明驱动电路 | |
US8816592B2 (en) | Active damper and driving method thereof | |
CN212752132U (zh) | 一种同步整流控制电路及开关电源 | |
JP2012205356A (ja) | 整流スイッチユニット、整流回路及びスイッチング電源装置 | |
CN103904872A (zh) | 一种离线式电源转换电路及方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201480024155.7 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14792024 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14781360 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 14792024 Country of ref document: EP Kind code of ref document: A1 |