JP6672063B2 - Dcdcコンバータ - Google Patents
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- JP6672063B2 JP6672063B2 JP2016091199A JP2016091199A JP6672063B2 JP 6672063 B2 JP6672063 B2 JP 6672063B2 JP 2016091199 A JP2016091199 A JP 2016091199A JP 2016091199 A JP2016091199 A JP 2016091199A JP 6672063 B2 JP6672063 B2 JP 6672063B2
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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
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
- H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
- H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC 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
- H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC 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
-
- 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
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
- H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
- H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC 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
- H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC 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
- H02M3/156—Conversion of DC power input into DC power output without intermediate conversion into AC 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 with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of DC power input into DC power output without intermediate conversion into AC 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 with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
-
- 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
-
- 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
- H02M1/14—Arrangements for reducing ripples from DC input or output
- H02M1/15—Arrangements for reducing ripples from DC input or output using active elements
-
- 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
- H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
-
- 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
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
- H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
- H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC 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
- H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC 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
- H02M3/156—Conversion of DC power input into DC power output without intermediate conversion into AC 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 with automatic control of output voltage or current, e.g. switching regulators
- H02M3/157—Conversion of DC power input into DC power output without intermediate conversion into AC 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 with automatic control of output voltage or current, e.g. switching regulators with digital control
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- 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
- H03K5/2472—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 using field effect transistors
- H03K5/2481—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 using field effect transistors with at least one differential stage
-
- 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
- H02M1/0032—Control circuits allowing low power mode operation, e.g. in standby mode
-
- 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
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
- H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
- H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC 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
- H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC 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
- H02M3/156—Conversion of DC power input into DC power output without intermediate conversion into AC 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 with automatic control of output voltage or current, e.g. switching regulators
- H02M3/1563—Conversion of DC power input into DC power output without intermediate conversion into AC 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 with automatic control of output voltage or current, e.g. switching regulators without using an external clock
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Nonlinear Science (AREA)
- Dc-Dc Converters (AREA)
Description
図1は、本実施形態のDCDCコンバータ100の回路図である。
本実施形態のDCDCコンバータ100は、比較回路101と、出力制御回路102と、擬似リップル生成回路103と、スイッチング素子11及び12と、バッファ13及び14と、インダクタ15と、コンデンサ16と、抵抗素子17及び18と、基準電圧源19とを備えている。
ている。
図2の擬似リップル生成回路103は、抵抗素子21〜23と、容量素子24〜26とを備えている。抵抗素子21は、一端に電圧VSWを受け、他端が容量素子24の一端に接続されている。容量素子24の他端は、接地端子2に接続されている。
比較回路101aは、4入力のコンパレータ31と、スイッチ32とを備えている。
コンパレータ31は、二つの差動入力段を有しており、一方の(第1の)差動入力段の反転入力端子に擬似リップル電圧VQRが、非反転入力端子に平滑電圧VQRSが入力され、もう一方の(第2の)差動入力段の反転入力端子に帰還電圧VFBが、非反転入力端子に基準電圧VREFが入力されて、比較結果信号VCOMを出力する。
PMOSトランジスタ311と312により第1の差動入力段が構成され、PMOSトランジスタ313と314により第2の差動入力段が構成されている。第1の差動入力段には、擬似リップル電圧VQRと平滑電圧VQRSが入力され、第2の差動入力段には、帰還電圧VFBと基準電圧VREFが入力されている。
比較回路101bは、コンパレータ33及び34と、スイッチ35とを備えている。比較回路101bは、さらに、電源端子1とコンパレータ33の動作電流入力ノードN33inとの間に直列に接続された電流源36及びスイッチ37と、電源端子1とコンパレータ34の動作電流入力ノードN34inとの間に接続された電流源38とを備えている。スイッチ37は、制御信号CONTをインバータ39により反転した信号によりオンオフ制御される。
例えば、上記実施形態では、本発明を通常のヒステリシス制御方式のDCDCコンバータに適用した例を説明したが、ヒステリシス制御方式の一種であるCOT(コンスタントオンタイム)制御方式のDCDCコンバータに適用することももちろん可能である。
102 出力制御回路
103 擬似リップル生成回路
31、31a、33、34 コンパレータ
Claims (7)
- 一端に出力電圧が生成されるインダクタの他端と電源端子との間に接続された第1のスイッチング素子と、
前記出力電圧に生じるリップル成分に応じた擬似リップル電圧及びこれを平滑化した平滑電圧を生成する擬似リップル生成回路と、
前記擬似リップル電圧と前記平滑電圧を比較した第1の比較結果と、前記出力電圧を分圧した帰還電圧と基準電圧を比較した第2の比較結果とを合成して、比較結果信号を出力する比較回路と、
前記比較結果信号に基づき、前記第1のスイッチング素子のオンオフを制御する出力制御回路と、を備え、
前記比較回路は、第1の反転入力端子に前記擬似リップル電圧が入力され、第1の非反転入力端子に前記平滑電圧が入力され、第2の反転入力端子に前記帰還電圧が入力され、第2の非反転入力端子に前記基準電圧が入力され、前記比較結果信号を出力する4入力のコンパレータを有し、軽負荷になったことに応答して、前記擬似リップル電圧と前記平滑電圧とを同電位にして、前記第2の比較結果のみを前記比較結果信号として出力することを特徴とするDCDCコンバータ。 - 前記コンパレータは、前記擬似リップル電圧と前記平滑電圧が入力される第1の差動入力段と、前記帰還電圧と前記基準電圧が入力される第2の差動入力段と、前記第1の差動入力段の第1の動作電流入力ノードに電流を供給する第1及び第2の電流源と、前記第2の差動入力段の第2の動作電流入力ノードに電流を供給する第3及び第4の電流源とを有し、
前記軽負荷になったことに応答して、前記第2の電流源から前記第1の動作電流入力ノードへの電流供給及び前記第4の電流源から前記第2の動作電流入力ノードへの電流供給を停止することを特徴とする請求項1に記載のDCDCコンバータ。 - 前記第1のスイッチング素子に直列に接続された第2のスイッチング素子をさらに備え、
前記出力制御回路は、前記第2のスイッチング素子のオンオフを制御し、
前記比較回路は、前記軽負荷になった後、前記第1及び第2のスイッチング素子がいずれもオフしている状態から前記第1のスイッチング素子がオンしたことに応答して、前記第1の比較結果と前記第2の比較結果とを合成して、比較結果信号を出力する請求項1または2に記載のDCDCコンバータ。 - 一端に出力電圧が生成されるインダクタの他端と電源端子との間に接続された第1のスイッチング素子と、
前記出力電圧に生じるリップル成分に応じた擬似リップル電圧及びこれを平滑化した平滑電圧を生成する擬似リップル生成回路と、
前記擬似リップル電圧と前記平滑電圧を比較した第1の比較結果と、前記出力電圧を分圧した帰還電圧と基準電圧を比較した第2の比較結果とを合成して、比較結果信号を出力する比較回路と、
前記比較結果信号に基づき、前記第1のスイッチング素子のオンオフを制御する出力制御回路と、を備え、
前記比較回路は、第1の反転入力端子に前記擬似リップル電圧が入力され、第1の非反転入力端子に前記平滑電圧が入力され、第2の反転入力端子に前記帰還電圧が入力され、第2の非反転入力端子に前記基準電圧が入力され、第1の比較信号を出力する4入力の第1のコンパレータと、反転入力端子に前記帰還電圧が入力され、非反転入力端子に前記基準電圧が入力され、第2の比較信号を出力する2入力の第2のコンパレータとを有し、
軽負荷になったことに応答して、前記第2の比較信号を前記比較結果信号として出力することを特徴とするDCDCコンバータ。 - 前記第1のコンパレータの動作電流は、前記第2のコンパレータの動作電流より大きいことを特徴とする請求項4に記載のDCDCコンバータ。
- 前記軽負荷になったことに応答して、前記第1のコンパレータへの前記動作電流の供給
を停止することを特徴とする請求項5に記載のDCDCコンバータ。 - 前記第1のスイッチング素子に直列に接続された第2のスイッチング素子をさらに備え、
前記出力制御回路は、前記第2のスイッチング素子のオンオフを制御し、
前記比較回路は、前記軽負荷になった後、前記第1及び第2のスイッチング素子がいずれもオフしている状態から前記第1のスイッチング素子がオンしたことに応答して、前記第1の比較信号を前記比較結果信号として出力することを特徴とする請求項4乃至6のいずれか一項に記載のDCDCコンバータ。
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| Application Number | Priority Date | Filing Date | Title |
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| JP2016091199A JP6672063B2 (ja) | 2016-04-28 | 2016-04-28 | Dcdcコンバータ |
| TW106113186A TWI721155B (zh) | 2016-04-28 | 2017-04-20 | 直流直流轉換器 |
| KR1020170052378A KR102299909B1 (ko) | 2016-04-28 | 2017-04-24 | Dcdc 컨버터 |
| US15/497,706 US10050532B2 (en) | 2016-04-28 | 2017-04-26 | DC-DC converter with pseudo ripple voltage generation |
| CN201710286513.7A CN107342685B (zh) | 2016-04-28 | 2017-04-27 | Dcdc转换器 |
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| JP2016091199A JP6672063B2 (ja) | 2016-04-28 | 2016-04-28 | Dcdcコンバータ |
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| JP2017200385A JP2017200385A (ja) | 2017-11-02 |
| JP6672063B2 true JP6672063B2 (ja) | 2020-03-25 |
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| KR (1) | KR102299909B1 (ja) |
| CN (1) | CN107342685B (ja) |
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| US10270330B2 (en) * | 2017-05-09 | 2019-04-23 | Linear Technology Holding Llc | Predictive ripple-cancelling signal into error amplifier of switch mode power supply |
| KR102005044B1 (ko) * | 2017-12-06 | 2019-07-30 | (주)태진기술 | Esr 에뮬레이션을 이용한 스위칭 레귤레이터 |
| TWI664800B (zh) * | 2018-03-07 | 2019-07-01 | 國立成功大學 | 升壓式直流電能轉換裝置與抑制太陽能模組之電壓漣波的方法 |
| CN108988616B (zh) * | 2018-07-31 | 2020-06-02 | 矽力杰半导体技术(杭州)有限公司 | 纹波生成电路、控制电路及开关变换器 |
| KR102819292B1 (ko) * | 2020-01-30 | 2025-06-11 | 삼성전자주식회사 | 전압 컨버터 및 이를 포함하는 전력 관리 장치 |
| CN112152449B (zh) * | 2020-09-22 | 2021-07-20 | 无锡力芯微电子股份有限公司 | 直流-直流转换器 |
| JP7746797B2 (ja) * | 2021-10-21 | 2025-10-01 | 株式会社デンソー | スイッチング電源装置 |
| CN119543647B (zh) * | 2025-01-15 | 2025-06-03 | 深圳市微源半导体股份有限公司 | 用于增强瞬态响应的直流变换电路、开关电源及电子设备 |
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| US5912552A (en) * | 1997-02-12 | 1999-06-15 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | DC to DC converter with high efficiency for light loads |
| JP2000114969A (ja) * | 1998-10-06 | 2000-04-21 | Hitachi Ltd | 半導体集積回路 |
| TWI350636B (en) * | 2003-11-11 | 2011-10-11 | Rohm Co Ltd | Dc/dc converter |
| US7902805B2 (en) * | 2006-04-03 | 2011-03-08 | Texas Instruments Deutschland Gmbh | Self-oscillating DC-DC buck converter with zero hysteresis |
| GB0912745D0 (en) * | 2009-07-22 | 2009-08-26 | Wolfson Microelectronics Plc | Improvements relating to DC-DC converters |
| JP5768475B2 (ja) * | 2011-04-28 | 2015-08-26 | ミツミ電機株式会社 | スイッチング電源装置 |
| US9712059B2 (en) * | 2013-09-30 | 2017-07-18 | Texas Instruments Incorporated | Directly amplified ripple tracking control scheme for multiphase DC-DC converter |
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2016
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| US10050532B2 (en) | 2018-08-14 |
| CN107342685B (zh) | 2020-05-22 |
| TW201739157A (zh) | 2017-11-01 |
| JP2017200385A (ja) | 2017-11-02 |
| KR102299909B1 (ko) | 2021-09-08 |
| TWI721155B (zh) | 2021-03-11 |
| KR20170123249A (ko) | 2017-11-07 |
| CN107342685A (zh) | 2017-11-10 |
| US20170317589A1 (en) | 2017-11-02 |
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