CN103401418B - 电荷泵电路及包括其的音频设备 - Google Patents
电荷泵电路及包括其的音频设备 Download PDFInfo
- Publication number
- CN103401418B CN103401418B CN201310279544.1A CN201310279544A CN103401418B CN 103401418 B CN103401418 B CN 103401418B CN 201310279544 A CN201310279544 A CN 201310279544A CN 103401418 B CN103401418 B CN 103401418B
- Authority
- CN
- China
- Prior art keywords
- terminal
- switch
- output
- flying capacitor
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 193
- 238000000034 method Methods 0.000 description 14
- 238000012545 processing Methods 0.000 description 10
- 238000012546 transfer Methods 0.000 description 6
- 230000009977 dual effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000003032 molecular docking Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 238000012163 sequencing technique Methods 0.000 description 3
- 230000006399 behavior Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 101150012579 ADSL gene Proteins 0.000 description 1
- 102100020775 Adenylosuccinate lyase Human genes 0.000 description 1
- 108700040193 Adenylosuccinate lyases Proteins 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 229920001690 polydopamine Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
Classifications
-
- 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
- H02M3/06—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider
- H02M3/07—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
-
- 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
- H02M1/0083—Converters characterised by their input or output configuration
- H02M1/009—Converters characterised by their input or output configuration having two or more independently controlled outputs
-
- 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
- H02M3/06—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider
- H02M3/07—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
- H02M3/071—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps adapted to generate a negative voltage output from a positive voltage source
-
- 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
- H02M3/06—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider
- H02M3/07—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
- H02M3/072—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps adapted to generate an output voltage whose value is lower than the input voltage
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0625954A GB2444984B (en) | 2006-12-22 | 2006-12-22 | Charge pump circuit and methods of operation thereof |
| GB0625954.3 | 2006-12-22 | ||
| CN2007800516530A CN101611531B (zh) | 2006-12-22 | 2007-12-21 | 电荷泵电路及其运行方法 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800516530A Division CN101611531B (zh) | 2006-12-22 | 2007-12-21 | 电荷泵电路及其运行方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103401418A CN103401418A (zh) | 2013-11-20 |
| CN103401418B true CN103401418B (zh) | 2016-12-07 |
Family
ID=37759090
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310279544.1A Active CN103401418B (zh) | 2006-12-22 | 2007-12-21 | 电荷泵电路及包括其的音频设备 |
| CN2007800516530A Active CN101611531B (zh) | 2006-12-22 | 2007-12-21 | 电荷泵电路及其运行方法 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800516530A Active CN101611531B (zh) | 2006-12-22 | 2007-12-21 | 电荷泵电路及其运行方法 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US7626445B2 (enExample) |
| EP (2) | EP2095495B1 (enExample) |
| JP (3) | JP2010530726A (enExample) |
| KR (3) | KR101076989B1 (enExample) |
| CN (2) | CN103401418B (enExample) |
| GB (1) | GB2444984B (enExample) |
| TW (1) | TWI432936B (enExample) |
| WO (1) | WO2008078120A1 (enExample) |
Families Citing this family (185)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070047352A1 (en) * | 2005-08-26 | 2007-03-01 | Tpo Displays Corp. | Charge pump |
| US7626865B2 (en) | 2006-06-13 | 2009-12-01 | Micron Technology, Inc. | Charge pump operation in a non-volatile memory device |
| GB2446843B (en) | 2006-06-30 | 2011-09-07 | Wolfson Microelectronics Plc | Amplifier circuit and methods of operation thereof |
| GB2444984B (en) * | 2006-12-22 | 2011-07-13 | Wolfson Microelectronics Plc | Charge pump circuit and methods of operation thereof |
| GB2444988B (en) * | 2006-12-22 | 2011-07-20 | Wolfson Microelectronics Plc | Audio amplifier circuit and electronic apparatus including the same |
| GB2447426B (en) * | 2006-12-22 | 2011-07-13 | Wolfson Microelectronics Plc | Charge pump circuit and methods of operation thereof |
| GB2444985B (en) | 2006-12-22 | 2011-09-14 | Wolfson Microelectronics Plc | Charge pump circuit and methods of operation thereof |
| JP5038706B2 (ja) * | 2006-12-27 | 2012-10-03 | ルネサスエレクトロニクス株式会社 | 昇圧回路 |
| US7791520B2 (en) * | 2007-04-23 | 2010-09-07 | Qualcomm Incorporated | Low power, low noise digital-to-analog converter reference circuit |
| GB0715254D0 (en) * | 2007-08-03 | 2007-09-12 | Wolfson Ltd | Amplifier circuit |
| US7839129B2 (en) * | 2007-09-10 | 2010-11-23 | The Regents Of The University Of Michigan | On-chip power supply voltage regulation |
| GB2455524B (en) | 2007-12-11 | 2010-04-07 | Wolfson Microelectronics Plc | Charge pump circuit and methods of operation thereof and portable audio apparatus including charge pump circuits |
| WO2009099431A2 (en) * | 2008-01-31 | 2009-08-13 | Semiconductor Components Industries, Llc | Charge pump converter and method therefor |
| US9425747B2 (en) | 2008-03-03 | 2016-08-23 | Qualcomm Incorporated | System and method of reducing power consumption for audio playback |
| US8040174B2 (en) * | 2008-06-19 | 2011-10-18 | Sandisk Il Ltd. | Charge coupled pump-efficient charge pump regulator with MOS capacitor |
| US9166471B1 (en) | 2009-03-13 | 2015-10-20 | Rf Micro Devices, Inc. | 3D frequency dithering for DC-to-DC converters used in multi-mode cellular transmitters |
| US9209680B2 (en) * | 2009-04-29 | 2015-12-08 | Infineon Technologies Ag | Circuit for providing negative voltages with selectable charge pump or buck-boost operating mode |
| US8315576B2 (en) | 2009-05-05 | 2012-11-20 | Rf Micro Devices, Inc. | Capacitive compensation of cascaded directional couplers |
| US9112452B1 (en) | 2009-07-14 | 2015-08-18 | Rf Micro Devices, Inc. | High-efficiency power supply for a modulated load |
| JP5397067B2 (ja) * | 2009-07-29 | 2014-01-22 | 株式会社リコー | チャージポンプ回路及びその動作制御方法 |
| CN101989457B (zh) * | 2009-08-04 | 2015-06-03 | 上海华虹宏力半导体制造有限公司 | 减少滤波电容的非易挥发存储器系统 |
| JP5504782B2 (ja) * | 2009-09-18 | 2014-05-28 | ヤマハ株式会社 | チャージポンプ |
| JP5504783B2 (ja) * | 2009-09-18 | 2014-05-28 | ヤマハ株式会社 | チャージポンプ |
| JP5343797B2 (ja) * | 2009-09-30 | 2013-11-13 | ヤマハ株式会社 | 増幅回路 |
| EP2514084B1 (en) | 2009-12-16 | 2015-02-11 | ST-Ericsson SA | High voltage tolerant inverting charge pump |
| US8400122B2 (en) * | 2009-12-22 | 2013-03-19 | Fairchild Semiconductor Corporation | Selectively activated three-state charge pump |
| US8339186B2 (en) | 2009-12-30 | 2012-12-25 | Diodes Incorporated | Voltage level shift circuits and methods |
| US8548398B2 (en) | 2010-02-01 | 2013-10-01 | Rf Micro Devices, Inc. | Envelope power supply calibration of a multi-mode radio frequency power amplifier |
| US8582332B2 (en) | 2010-02-22 | 2013-11-12 | Marvell World Trade Ltd. | Dual output DC-DC charge pump regulator |
| WO2011103058A1 (en) * | 2010-02-22 | 2011-08-25 | Marvell World Trade Ltd | Dual output direct current (dc)-dc regulator |
| US8829979B2 (en) * | 2010-02-25 | 2014-09-09 | Broadcom Corporation | Power-efficient multi-mode charge pump |
| JP5481262B2 (ja) * | 2010-04-08 | 2014-04-23 | ローム株式会社 | オーディオ信号処理回路およびそれを用いた電子機器 |
| JP5650431B2 (ja) | 2010-04-14 | 2015-01-07 | ラピスセミコンダクタ株式会社 | チャージポンプ型の昇圧回路及び昇圧方法 |
| US8519788B2 (en) | 2010-04-19 | 2013-08-27 | Rf Micro Devices, Inc. | Boost charge-pump with fractional ratio and offset loop for supply modulation |
| US8633766B2 (en) | 2010-04-19 | 2014-01-21 | Rf Micro Devices, Inc. | Pseudo-envelope follower power management system with high frequency ripple current compensation |
| US9431974B2 (en) | 2010-04-19 | 2016-08-30 | Qorvo Us, Inc. | Pseudo-envelope following feedback delay compensation |
| US8538355B2 (en) | 2010-04-19 | 2013-09-17 | Rf Micro Devices, Inc. | Quadrature power amplifier architecture |
| US8981848B2 (en) | 2010-04-19 | 2015-03-17 | Rf Micro Devices, Inc. | Programmable delay circuitry |
| US9099961B2 (en) | 2010-04-19 | 2015-08-04 | Rf Micro Devices, Inc. | Output impedance compensation of a pseudo-envelope follower power management system |
| CN102971962B (zh) | 2010-04-19 | 2016-05-25 | 射频小型装置公司 | 伪包络跟随功率管理系统 |
| US9030256B2 (en) | 2010-04-20 | 2015-05-12 | Rf Micro Devices, Inc. | Overlay class F choke |
| US8706063B2 (en) | 2010-04-20 | 2014-04-22 | Rf Micro Devices, Inc. | PA envelope power supply undershoot compensation |
| US8559898B2 (en) | 2010-04-20 | 2013-10-15 | Rf Micro Devices, Inc. | Embedded RF PA temperature compensating bias transistor |
| US8892063B2 (en) | 2010-04-20 | 2014-11-18 | Rf Micro Devices, Inc. | Linear mode and non-linear mode quadrature PA circuitry |
| US8942651B2 (en) | 2010-04-20 | 2015-01-27 | Rf Micro Devices, Inc. | Cascaded converged power amplifier |
| US9008597B2 (en) | 2010-04-20 | 2015-04-14 | Rf Micro Devices, Inc. | Direct current (DC)-DC converter having a multi-stage output filter |
| US9362825B2 (en) | 2010-04-20 | 2016-06-07 | Rf Micro Devices, Inc. | Look-up table based configuration of a DC-DC converter |
| US8712349B2 (en) | 2010-04-20 | 2014-04-29 | Rf Micro Devices, Inc. | Selecting a converter operating mode of a PA envelope power supply |
| US8542061B2 (en) | 2010-04-20 | 2013-09-24 | Rf Micro Devices, Inc. | Charge pump based power amplifier envelope power supply and bias power supply |
| US9214865B2 (en) | 2010-04-20 | 2015-12-15 | Rf Micro Devices, Inc. | Voltage compatible charge pump buck and buck power supplies |
| US8983407B2 (en) | 2010-04-20 | 2015-03-17 | Rf Micro Devices, Inc. | Selectable PA bias temperature compensation circuitry |
| US8913967B2 (en) | 2010-04-20 | 2014-12-16 | Rf Micro Devices, Inc. | Feedback based buck timing of a direct current (DC)-DC converter |
| US8942650B2 (en) | 2010-04-20 | 2015-01-27 | Rf Micro Devices, Inc. | RF PA linearity requirements based converter operating mode selection |
| US9048787B2 (en) | 2010-04-20 | 2015-06-02 | Rf Micro Devices, Inc. | Combined RF detector and RF attenuator with concurrent outputs |
| US9900204B2 (en) | 2010-04-20 | 2018-02-20 | Qorvo Us, Inc. | Multiple functional equivalence digital communications interface |
| US8913971B2 (en) | 2010-04-20 | 2014-12-16 | Rf Micro Devices, Inc. | Selecting PA bias levels of RF PA circuitry during a multislot burst |
| US8947157B2 (en) | 2010-04-20 | 2015-02-03 | Rf Micro Devices, Inc. | Voltage multiplier charge pump buck |
| US8571492B2 (en) | 2010-04-20 | 2013-10-29 | Rf Micro Devices, Inc. | DC-DC converter current sensing |
| US8811920B2 (en) | 2010-04-20 | 2014-08-19 | Rf Micro Devices, Inc. | DC-DC converter semiconductor die structure |
| US8983410B2 (en) | 2010-04-20 | 2015-03-17 | Rf Micro Devices, Inc. | Configurable 2-wire/3-wire serial communications interface |
| US9214900B2 (en) | 2010-04-20 | 2015-12-15 | Rf Micro Devices, Inc. | Interference reduction between RF communications bands |
| US8515361B2 (en) | 2010-04-20 | 2013-08-20 | Rf Micro Devices, Inc. | Frequency correction of a programmable frequency oscillator by propagation delay compensation |
| US9577590B2 (en) | 2010-04-20 | 2017-02-21 | Qorvo Us, Inc. | Dual inductive element charge pump buck and buck power supplies |
| US8842399B2 (en) | 2010-04-20 | 2014-09-23 | Rf Micro Devices, Inc. | ESD protection of an RF PA semiconductor die using a PA controller semiconductor die |
| US8831544B2 (en) | 2010-04-20 | 2014-09-09 | Rf Micro Devices, Inc. | Dynamic device switching (DDS) of an in-phase RF PA stage and a quadrature-phase RF PA stage |
| US9553550B2 (en) | 2010-04-20 | 2017-01-24 | Qorvo Us, Inc. | Multiband RF switch ground isolation |
| US9077405B2 (en) | 2010-04-20 | 2015-07-07 | Rf Micro Devices, Inc. | High efficiency path based power amplifier circuitry |
| US8811921B2 (en) | 2010-04-20 | 2014-08-19 | Rf Micro Devices, Inc. | Independent PA biasing of a driver stage and a final stage |
| US8731498B2 (en) | 2010-04-20 | 2014-05-20 | Rf Micro Devices, Inc. | Temperature correcting an envelope power supply signal for RF PA circuitry |
| US8699973B2 (en) | 2010-04-20 | 2014-04-15 | Rf Micro Devices, Inc. | PA bias power supply efficiency optimization |
| US8565694B2 (en) | 2010-04-20 | 2013-10-22 | Rf Micro Devices, Inc. | Split current current digital-to-analog converter (IDAC) for dynamic device switching (DDS) of an RF PA stage |
| US8958763B2 (en) | 2010-04-20 | 2015-02-17 | Rf Micro Devices, Inc. | PA bias power supply undershoot compensation |
| US8989685B2 (en) | 2010-04-20 | 2015-03-24 | Rf Micro Devices, Inc. | Look-up table based configuration of multi-mode multi-band radio frequency power amplifier circuitry |
| US9184701B2 (en) | 2010-04-20 | 2015-11-10 | Rf Micro Devices, Inc. | Snubber for a direct current (DC)-DC converter |
| US9716428B2 (en) | 2010-05-26 | 2017-07-25 | Lionel O. Barthold | High voltage capacitive power transformer |
| US8866549B2 (en) | 2010-06-01 | 2014-10-21 | Rf Micro Devices, Inc. | Method of power amplifier calibration |
| CA2713473C (en) | 2010-08-18 | 2013-03-12 | Lotek Wireless Inc. | Device and method for providing power to a microcontroller |
| WO2012027039A1 (en) | 2010-08-25 | 2012-03-01 | Rf Micro Devices, Inc. | Multi-mode/multi-band power management system |
| WO2012027619A1 (en) * | 2010-08-25 | 2012-03-01 | Rf Micro Devices, Inc. | Boost charge-pump with fractional ratio and offset loop for supply modulation |
| US9954436B2 (en) | 2010-09-29 | 2018-04-24 | Qorvo Us, Inc. | Single μC-buckboost converter with multiple regulated supply outputs |
| EP2518877B1 (en) | 2010-11-12 | 2017-07-19 | Asahi Kasei Microdevices Corporation | Charge pump circuit, control method thereof, and semiconductor integrated circuit |
| US9075673B2 (en) | 2010-11-16 | 2015-07-07 | Rf Micro Devices, Inc. | Digital fast dB to gain multiplier for envelope tracking systems |
| GB2486701B (en) | 2010-12-23 | 2013-01-09 | Wolfson Microelectronics Plc | Charge pump circuit |
| WO2012151466A2 (en) | 2011-05-05 | 2012-11-08 | Arctic Sand Technologies, Inc. | Dc-dc converter with modular stages |
| US8588713B2 (en) | 2011-01-10 | 2013-11-19 | Rf Micro Devices, Inc. | Power management system for multi-carriers transmitter |
| US8611402B2 (en) | 2011-02-02 | 2013-12-17 | Rf Micro Devices, Inc. | Fast envelope system calibration |
| US8624760B2 (en) | 2011-02-07 | 2014-01-07 | Rf Micro Devices, Inc. | Apparatuses and methods for rate conversion and fractional delay calculation using a coefficient look up table |
| US8942313B2 (en) | 2011-02-07 | 2015-01-27 | Rf Micro Devices, Inc. | Group delay calibration method for power amplifier envelope tracking |
| EP2493060A1 (en) * | 2011-02-22 | 2012-08-29 | ST-Ericsson SA | Low ripple step-up/step-down converter |
| US20120235730A1 (en) * | 2011-03-14 | 2012-09-20 | Qualcomm Incorporated | Charge pump surge current reduction |
| US9246460B2 (en) | 2011-05-05 | 2016-01-26 | Rf Micro Devices, Inc. | Power management architecture for modulated and constant supply operation |
| US9379667B2 (en) | 2011-05-05 | 2016-06-28 | Rf Micro Devices, Inc. | Multiple power supply input parallel amplifier based envelope tracking |
| US9247496B2 (en) | 2011-05-05 | 2016-01-26 | Rf Micro Devices, Inc. | Power loop control based envelope tracking |
| US10680515B2 (en) | 2011-05-05 | 2020-06-09 | Psemi Corporation | Power converters with modular stages |
| US9178627B2 (en) | 2011-05-31 | 2015-11-03 | Rf Micro Devices, Inc. | Rugged IQ receiver based RF gain measurements |
| US9019011B2 (en) | 2011-06-01 | 2015-04-28 | Rf Micro Devices, Inc. | Method of power amplifier calibration for an envelope tracking system |
| US8760228B2 (en) | 2011-06-24 | 2014-06-24 | Rf Micro Devices, Inc. | Differential power management and power amplifier architecture |
| EP2544344B1 (en) | 2011-07-04 | 2015-05-27 | Dialog Semiconductor GmbH | Triple mode charge-pump. |
| US8952710B2 (en) | 2011-07-15 | 2015-02-10 | Rf Micro Devices, Inc. | Pulsed behavior modeling with steady state average conditions |
| US8626091B2 (en) | 2011-07-15 | 2014-01-07 | Rf Micro Devices, Inc. | Envelope tracking with variable compression |
| WO2013012787A2 (en) | 2011-07-15 | 2013-01-24 | Rf Micro Devices, Inc. | Modified switching ripple for envelope tracking system |
| US9263996B2 (en) | 2011-07-20 | 2016-02-16 | Rf Micro Devices, Inc. | Quasi iso-gain supply voltage function for envelope tracking systems |
| CN102255503B (zh) * | 2011-07-21 | 2014-07-23 | 成都芯源系统有限公司 | 电荷泵电路以及包含该电路的电源装置 |
| US8618868B2 (en) | 2011-08-17 | 2013-12-31 | Rf Micro Devices, Inc. | Single charge-pump buck-boost for providing independent voltages |
| US8942652B2 (en) | 2011-09-02 | 2015-01-27 | Rf Micro Devices, Inc. | Split VCC and common VCC power management architecture for envelope tracking |
| KR101267039B1 (ko) | 2011-09-06 | 2013-05-23 | 주식회사 와이드칩스 | 전압 승압 회로 |
| US8957728B2 (en) | 2011-10-06 | 2015-02-17 | Rf Micro Devices, Inc. | Combined filter and transconductance amplifier |
| US8743553B2 (en) | 2011-10-18 | 2014-06-03 | Arctic Sand Technologies, Inc. | Power converters with integrated capacitors |
| US9484797B2 (en) | 2011-10-26 | 2016-11-01 | Qorvo Us, Inc. | RF switching converter with ripple correction |
| US8878606B2 (en) | 2011-10-26 | 2014-11-04 | Rf Micro Devices, Inc. | Inductance based parallel amplifier phase compensation |
| US9024688B2 (en) | 2011-10-26 | 2015-05-05 | Rf Micro Devices, Inc. | Dual parallel amplifier based DC-DC converter |
| WO2013063364A1 (en) | 2011-10-26 | 2013-05-02 | Rf Micro Devices, Inc. | Average frequency control of switcher for envelope tracking |
| EP2587648A1 (en) * | 2011-10-28 | 2013-05-01 | ST-Ericsson SA | Charge pump circuit |
| KR101228970B1 (ko) * | 2011-10-31 | 2013-02-01 | 한양대학교 에리카산학협력단 | 다중 출력을 위한 전류 공급 장치 |
| US9515621B2 (en) | 2011-11-30 | 2016-12-06 | Qorvo Us, Inc. | Multimode RF amplifier system |
| US8975959B2 (en) | 2011-11-30 | 2015-03-10 | Rf Micro Devices, Inc. | Monotonic conversion of RF power amplifier calibration data |
| US9250643B2 (en) | 2011-11-30 | 2016-02-02 | Rf Micro Devices, Inc. | Using a switching signal delay to reduce noise from a switching power supply |
| US8947161B2 (en) | 2011-12-01 | 2015-02-03 | Rf Micro Devices, Inc. | Linear amplifier power supply modulation for envelope tracking |
| US9041365B2 (en) | 2011-12-01 | 2015-05-26 | Rf Micro Devices, Inc. | Multiple mode RF power converter |
| US9256234B2 (en) | 2011-12-01 | 2016-02-09 | Rf Micro Devices, Inc. | Voltage offset loop for a switching controller |
| US9280163B2 (en) | 2011-12-01 | 2016-03-08 | Rf Micro Devices, Inc. | Average power tracking controller |
| US9041364B2 (en) | 2011-12-01 | 2015-05-26 | Rf Micro Devices, Inc. | RF power converter |
| US9494962B2 (en) | 2011-12-02 | 2016-11-15 | Rf Micro Devices, Inc. | Phase reconfigurable switching power supply |
| US9813036B2 (en) | 2011-12-16 | 2017-11-07 | Qorvo Us, Inc. | Dynamic loadline power amplifier with baseband linearization |
| US9298198B2 (en) | 2011-12-28 | 2016-03-29 | Rf Micro Devices, Inc. | Noise reduction for envelope tracking |
| JP5851847B2 (ja) * | 2012-01-06 | 2016-02-03 | 旭化成エレクトロニクス株式会社 | チャージ・ポンプ回路、半導体集積回路 |
| CN103219883B (zh) * | 2012-01-19 | 2017-03-01 | 瑞昱半导体股份有限公司 | 电荷泵电路及其动态调整电压的供电方法 |
| US9065505B2 (en) | 2012-01-31 | 2015-06-23 | Rf Micro Devices, Inc. | Optimal switching frequency for envelope tracking power supply |
| US8981839B2 (en) | 2012-06-11 | 2015-03-17 | Rf Micro Devices, Inc. | Power source multiplexer |
| US20140001856A1 (en) * | 2012-06-29 | 2014-01-02 | General Electric Company | Multilevel power converter |
| WO2014018861A1 (en) | 2012-07-26 | 2014-01-30 | Rf Micro Devices, Inc. | Programmable rf notch filter for envelope tracking |
| KR102051846B1 (ko) | 2012-07-31 | 2019-12-05 | 삼성디스플레이 주식회사 | 디스플레이 구동 회로 및 그것을 포함하는 표시 장치 |
| US8897073B2 (en) * | 2012-09-14 | 2014-11-25 | Freescale Semiconductor, Inc. | NVM with charge pump and method therefor |
| US9225231B2 (en) | 2012-09-14 | 2015-12-29 | Rf Micro Devices, Inc. | Open loop ripple cancellation circuit in a DC-DC converter |
| US9197256B2 (en) | 2012-10-08 | 2015-11-24 | Rf Micro Devices, Inc. | Reducing effects of RF mixer-based artifact using pre-distortion of an envelope power supply signal |
| WO2014062902A1 (en) | 2012-10-18 | 2014-04-24 | Rf Micro Devices, Inc | Transitioning from envelope tracking to average power tracking |
| US9627975B2 (en) | 2012-11-16 | 2017-04-18 | Qorvo Us, Inc. | Modulated power supply system and method with automatic transition between buck and boost modes |
| US9300252B2 (en) | 2013-01-24 | 2016-03-29 | Rf Micro Devices, Inc. | Communications based adjustments of a parallel amplifier power supply |
| TWI508437B (zh) | 2013-01-25 | 2015-11-11 | Richtek Technology Corp | 放大電路的電壓調整電路及相關的調整方法 |
| US9178472B2 (en) | 2013-02-08 | 2015-11-03 | Rf Micro Devices, Inc. | Bi-directional power supply signal based linear amplifier |
| JP5767660B2 (ja) * | 2013-02-20 | 2015-08-19 | 株式会社東芝 | Dc−dcコンバータ |
| EP2773033B1 (en) | 2013-02-28 | 2018-12-05 | Dialog Semiconductor GmbH | Divide by 2 and 3 charge pump methods |
| US9203353B2 (en) | 2013-03-14 | 2015-12-01 | Rf Micro Devices, Inc. | Noise conversion gain limited RF power amplifier |
| US9002447B2 (en) | 2013-03-14 | 2015-04-07 | Medtronic, Inc. | Implantable medical device having power supply for generating a regulated power supply |
| US9197162B2 (en) | 2013-03-14 | 2015-11-24 | Rf Micro Devices, Inc. | Envelope tracking power supply voltage dynamic range reduction |
| US8619445B1 (en) | 2013-03-15 | 2013-12-31 | Arctic Sand Technologies, Inc. | Protection of switched capacitor power converter |
| US8724353B1 (en) | 2013-03-15 | 2014-05-13 | Arctic Sand Technologies, Inc. | Efficient gate drivers for switched capacitor converters |
| US9479118B2 (en) | 2013-04-16 | 2016-10-25 | Rf Micro Devices, Inc. | Dual instantaneous envelope tracking |
| US9374005B2 (en) | 2013-08-13 | 2016-06-21 | Rf Micro Devices, Inc. | Expanded range DC-DC converter |
| CN103607115B (zh) * | 2013-09-25 | 2016-09-28 | 无锡中感微电子股份有限公司 | 电荷泵装置 |
| CN104753318B (zh) * | 2013-12-27 | 2017-06-30 | 展讯通信(上海)有限公司 | 一种降压负升压的开关电源 |
| WO2015138547A1 (en) * | 2014-03-14 | 2015-09-17 | Arctic Sand Technologies, Inc. | Charge pump stability control |
| CN103856044B (zh) * | 2014-03-18 | 2016-07-06 | 中国科学院上海微系统与信息技术研究所 | 一种电荷泵电路及其输出电压自动调节方法 |
| US9614476B2 (en) | 2014-07-01 | 2017-04-04 | Qorvo Us, Inc. | Group delay calibration of RF envelope tracking |
| US9729048B2 (en) | 2014-08-04 | 2017-08-08 | Skyworks Solutions, Inc. | Apparatus and methods for charge pumps for radio frequency systems |
| TWI546787B (zh) * | 2014-09-29 | 2016-08-21 | 矽創電子股份有限公司 | 電源供應模組、顯示器及其電容切換方法 |
| WO2016050645A1 (en) | 2014-10-02 | 2016-04-07 | Merus Audio Aps | A multiple output boost dc-dc power converter |
| US10903678B2 (en) * | 2014-10-21 | 2021-01-26 | Maxwell Technologies, Inc. | Apparatus and method for providing bidirectional voltage support |
| EP3241275B1 (en) | 2014-12-30 | 2021-02-17 | Infineon Technologies Austria AG | Multi-level class d audio power amplifiers |
| US10050522B2 (en) | 2015-02-15 | 2018-08-14 | Skyworks Solutions, Inc. | Interleaved dual output charge pump |
| CN116131601A (zh) | 2015-03-13 | 2023-05-16 | 佩里格林半导体公司 | 用于变电的装置和方法以及计算机可读介质 |
| US9912297B2 (en) | 2015-07-01 | 2018-03-06 | Qorvo Us, Inc. | Envelope tracking power converter circuitry |
| US9843294B2 (en) | 2015-07-01 | 2017-12-12 | Qorvo Us, Inc. | Dual-mode envelope tracking power converter circuitry |
| KR102723937B1 (ko) | 2015-07-08 | 2024-10-29 | 피세미 코포레이션 | 스위칭된 커패시터 전력 컨버터들 |
| US10277275B2 (en) * | 2015-09-08 | 2019-04-30 | Google Llc | Audio media streaming device |
| US9736531B2 (en) | 2015-09-08 | 2017-08-15 | Google Inc. | Video media streaming device |
| US10008990B2 (en) * | 2016-02-03 | 2018-06-26 | Infineon Technologies Ag | System and method for acoustic transducer supply |
| EP3232553B1 (en) * | 2016-04-13 | 2022-09-07 | Nxp B.V. | Dc-dc converter |
| US9973147B2 (en) | 2016-05-10 | 2018-05-15 | Qorvo Us, Inc. | Envelope tracking power management circuit |
| US9634562B1 (en) * | 2016-06-09 | 2017-04-25 | Stmicroelectronics International N.V. | Voltage doubling circuit and charge pump applications for the voltage doubling circuit |
| KR102547951B1 (ko) * | 2016-09-20 | 2023-06-26 | 삼성전자주식회사 | 재구성 가능한 양극성 출력 차지 펌프 회로 및 이를 포함하는 집적 회로 |
| US10924261B2 (en) * | 2017-05-22 | 2021-02-16 | Arm Limited | Efficient power distribution |
| US10997322B2 (en) * | 2017-05-22 | 2021-05-04 | Arm Limited | Efficient power distribution |
| FR3068187B1 (fr) | 2017-06-23 | 2019-08-09 | Stmicroelectronics Sa | Circuit a pompe de charges negative |
| US10333397B2 (en) | 2017-07-18 | 2019-06-25 | Stmicroelectronics International N.V. | Multi-stage charge pump circuit operating to simultaneously generate both a positive voltage and a negative voltage |
| WO2019056294A1 (en) * | 2017-09-22 | 2019-03-28 | Micron Technology, Inc. | SEMICONDUCTOR DEVICE WITH CHARGE PUMP |
| US10050524B1 (en) | 2017-11-01 | 2018-08-14 | Stmicroelectronics International N.V. | Circuit for level shifting a clock signal using a voltage multiplier |
| US10476437B2 (en) | 2018-03-15 | 2019-11-12 | Qorvo Us, Inc. | Multimode voltage tracker circuit |
| CN112015110B (zh) * | 2019-05-28 | 2024-03-29 | 杭州瑞彼加医疗科技有限公司 | 一种开关阵列的控制装置 |
| US10483846B1 (en) * | 2019-05-30 | 2019-11-19 | Allegro Microsystems, Llc | Multi-mode charge pump |
| US12035631B2 (en) * | 2020-06-18 | 2024-07-09 | Cirrus Logic Inc. | Driver circuitry for piezoelectric transducers |
| TWI777559B (zh) * | 2020-12-04 | 2022-09-11 | 立錡科技股份有限公司 | 充電系統、供電系統及其中的雙模式電源轉換電路 |
| US11394308B1 (en) | 2021-05-05 | 2022-07-19 | Arm Limited | Apparatuses and methods for power isolation |
| KR20230174612A (ko) | 2022-06-21 | 2023-12-28 | 삼성전기주식회사 | 전하 펌프 회로 및 그 동작 방법 |
| US12308847B2 (en) | 2023-06-21 | 2025-05-20 | International Business Machines Corporation | Dual loop charge pump for enhanced reliability and power consumption |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0585925A2 (en) * | 1992-09-02 | 1994-03-09 | Nec Corporation | Voltage converting circuit and multiphase clock generating circuit used for driving the same |
| US5306954A (en) * | 1992-06-04 | 1994-04-26 | Sipex Corporation | Charge pump with symmetrical +V and -V outputs |
| US5606491A (en) * | 1995-06-05 | 1997-02-25 | Analog Devices, Inc. | Multiplying and inverting charge pump |
| WO2006043479A1 (ja) * | 2004-10-19 | 2006-04-27 | Rohm Co., Ltd | スイッチング電源装置およびそれを用いた電子機器 |
| CN101051787A (zh) * | 2006-03-07 | 2007-10-10 | 罗姆股份有限公司 | 电荷泵式开关电源装置 |
Family Cites Families (65)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3772606A (en) * | 1972-01-28 | 1973-11-13 | United Aircraft Corp | Multi-level power amplifier |
| JPS51121239A (en) * | 1975-04-17 | 1976-10-23 | Sony Corp | An amplification circuit |
| JPS52132660A (en) * | 1976-04-28 | 1977-11-07 | Matsushita Electric Ind Co Ltd | Power amplifier |
| JPS56104510A (en) * | 1980-01-24 | 1981-08-20 | Nippon Gakki Seizo Kk | Electric power amplifier |
| DE3111776C2 (de) * | 1980-03-26 | 1983-12-22 | Hitachi, Ltd., Tokyo | Stereoverstärkeranlage |
| US5075643A (en) * | 1990-12-24 | 1991-12-24 | Motorola, Inc. | Frequency modulator |
| JPH05347519A (ja) * | 1991-12-31 | 1993-12-27 | Texas Instr Inc <Ti> | 演算増幅器 |
| WO1994011799A1 (en) | 1992-11-10 | 1994-05-26 | Motorola, Inc. | Switching regulator and amplifier system |
| JPH07130484A (ja) * | 1993-10-29 | 1995-05-19 | Toshiba Lighting & Technol Corp | 電源装置、ランプ点灯装置および照明装置 |
| JPH07240636A (ja) | 1994-03-01 | 1995-09-12 | Kenwood Corp | 電力増幅器 |
| US5414614A (en) * | 1994-06-06 | 1995-05-09 | Motorola, Inc. | Dynamically configurable switched capacitor power supply and method |
| JP3613799B2 (ja) | 1994-07-14 | 2005-01-26 | セイコーエプソン株式会社 | 電源回路,液晶表示装置及び電子機器 |
| JPH0898508A (ja) * | 1994-09-27 | 1996-04-12 | Matsushita Electric Works Ltd | 電源装置 |
| JPH08191224A (ja) | 1995-01-10 | 1996-07-23 | Fujitsu Ltd | 移動通信装置 |
| JP2004139107A (ja) * | 1995-01-11 | 2004-05-13 | Seiko Epson Corp | 電源回路、液晶表示装置及び電子機器 |
| US5760637A (en) * | 1995-12-11 | 1998-06-02 | Sipex Corporation | Programmable charge pump |
| US5898340A (en) * | 1996-11-20 | 1999-04-27 | Chatterjee; Manjirnath A. | High power efficiency audio amplifier with digital audio and volume inputs |
| US5790393A (en) * | 1997-01-22 | 1998-08-04 | Exar Corporation | Voltage multiplier with adjustable output level |
| WO1998044621A1 (en) * | 1997-03-28 | 1998-10-08 | Seiko Epson Corporation | Power source circuit, display device, and electronic equipment |
| US6166605A (en) * | 1997-09-18 | 2000-12-26 | Carver; Robert W. | Integrated audio amplifier |
| DE69939801D1 (de) * | 1998-04-24 | 2008-12-11 | Nxp Bv | Kombinierter kapazitiver aufwärts/abwärtswandler |
| EP1190480B1 (en) * | 1999-06-25 | 2004-11-17 | The Board of Trustees of the University of Illinois | Dynamically-switched power converter |
| JP2001185960A (ja) | 1999-12-27 | 2001-07-06 | Sharp Corp | 増幅器 |
| US6370046B1 (en) * | 2000-08-31 | 2002-04-09 | The Board Of Trustees Of The University Of Illinois | Ultra-capacitor based dynamically regulated charge pump power converter |
| SE518796C2 (sv) | 2000-04-07 | 2002-11-19 | Ericsson Telefon Ab L M | Förfarande och anordning för minimering av effektförlusten i en linjedrivare |
| JP3759371B2 (ja) * | 2000-05-22 | 2006-03-22 | セイコーインスツル株式会社 | チャージポンプ回路 |
| US6825726B2 (en) * | 2000-07-12 | 2004-11-30 | Indigo Manufacturing Inc. | Power amplifier with multiple power supplies |
| US6373340B1 (en) * | 2000-08-14 | 2002-04-16 | K. S. Waves, Ltd. | High-efficiency audio power amplifier |
| US6586992B1 (en) * | 2000-10-16 | 2003-07-01 | Globespanvirata, Inc. | System and method for increasing power range in a power amplifier using a single voltage supply |
| US6329800B1 (en) * | 2000-10-17 | 2001-12-11 | Sigmatel | Method and apparatus for reducing power consumption in driver circuits |
| JP2002198750A (ja) | 2000-12-26 | 2002-07-12 | Denon Ltd | 電力増幅器 |
| US6636103B2 (en) * | 2001-04-18 | 2003-10-21 | Analog Devices, Inc. | Amplifier system with on-demand power supply boost |
| US6661683B2 (en) * | 2002-03-18 | 2003-12-09 | Texas Instruments Incorporated | Charge pump having very low voltage ripple |
| US7183857B2 (en) * | 2002-01-24 | 2007-02-27 | Maxim Integrated Products Inc. | Single supply direct drive amplifier |
| DE60316555T2 (de) | 2002-05-07 | 2008-07-03 | Nxp B.V. | Ladungspumpe |
| AU2002951030A0 (en) | 2002-08-26 | 2002-09-12 | Newton Pty Limited | Power feedback apparatus |
| TWI231088B (en) * | 2002-11-14 | 2005-04-11 | Int Rectifier Corp | Control IC for low power auxiliary supplies |
| GB2395849B (en) * | 2002-11-26 | 2005-11-09 | Wolfson Ltd | Improved analogue selector |
| JP2004363867A (ja) | 2003-06-04 | 2004-12-24 | Alps Electric Co Ltd | 送信回路 |
| US6975177B2 (en) * | 2003-06-09 | 2005-12-13 | Nokia Corporation | Method and system for a generation of a two-level signal |
| CN1306690C (zh) * | 2003-07-30 | 2007-03-21 | 百利通电子(上海)有限公司 | 一种可对正负极分别充电的双电压电荷泵及其控制电路 |
| US6985024B2 (en) * | 2003-08-21 | 2006-01-10 | Analog Devices, Inc. | Voltage multiplier |
| US6859091B1 (en) * | 2003-09-18 | 2005-02-22 | Maxim Integrated Products, Inc. | Continuous linear regulated zero dropout charge pump with high efficiency load predictive clocking scheme |
| GB2408644B (en) * | 2003-11-26 | 2007-04-25 | Wolfson Ltd | Amplifier |
| EP1569330B8 (en) | 2004-02-20 | 2006-06-28 | Research In Motion Limited | Method and apparatus for improving power amplifier efficiency in wireless communication systems having high peak to average power ratios |
| JP2005260581A (ja) | 2004-03-11 | 2005-09-22 | Fujitsu Ltd | 高効率広ダイナミックレンジ増幅回路 |
| US7180760B2 (en) * | 2004-04-12 | 2007-02-20 | Advanced Neuromodulation Systems, Inc. | Method of efficiently performing fractional voltage conversion and system comprising efficient fractional voltage converter circuitry |
| TWI232024B (en) * | 2004-06-28 | 2005-05-01 | Realtek Semiconductor Corp | Amplifying circuit with variable supply voltage |
| TWI298970B (en) * | 2004-07-29 | 2008-07-11 | Sanyo Electric Co | Voltage reduction type dc-dc converter |
| JP2006067783A (ja) * | 2004-07-29 | 2006-03-09 | Sanyo Electric Co Ltd | Dc−dcコンバータ |
| JP3905101B2 (ja) | 2004-08-20 | 2007-04-18 | 株式会社半導体理工学研究センター | 出力可変型電源回路 |
| GB2418792B (en) | 2004-09-30 | 2008-10-22 | Samsung Electronics Co Ltd | Transmitter efficiency control |
| JP2006109565A (ja) * | 2004-10-01 | 2006-04-20 | Asahi Kasei Microsystems Kk | Dc−dcコンバータ |
| US7236046B2 (en) * | 2005-11-01 | 2007-06-26 | Catalyst Semiconductor, Inc. | LED bias current control using adaptive fractional charge pump |
| JP4091086B2 (ja) | 2006-04-24 | 2008-05-28 | 株式会社ルネサステクノロジ | 半導体集積回路及びマイクロコンピュータ |
| JP4825584B2 (ja) * | 2006-05-29 | 2011-11-30 | パナソニック株式会社 | チャージポンプ回路 |
| GB2446843B (en) * | 2006-06-30 | 2011-09-07 | Wolfson Microelectronics Plc | Amplifier circuit and methods of operation thereof |
| US8311243B2 (en) * | 2006-08-21 | 2012-11-13 | Cirrus Logic, Inc. | Energy-efficient consumer device audio power output stage |
| US8068622B2 (en) * | 2006-12-13 | 2011-11-29 | Cirrus Logic, Inc. | Method and apparatus for controlling a selectable voltage audio power output stage |
| US7550943B2 (en) * | 2006-09-19 | 2009-06-23 | Eveready Battery Company, Inc. | Intrinsically safe battery-powered device |
| GB2444985B (en) * | 2006-12-22 | 2011-09-14 | Wolfson Microelectronics Plc | Charge pump circuit and methods of operation thereof |
| GB2444984B (en) * | 2006-12-22 | 2011-07-13 | Wolfson Microelectronics Plc | Charge pump circuit and methods of operation thereof |
| GB2447426B (en) * | 2006-12-22 | 2011-07-13 | Wolfson Microelectronics Plc | Charge pump circuit and methods of operation thereof |
| GB2444988B (en) * | 2006-12-22 | 2011-07-20 | Wolfson Microelectronics Plc | Audio amplifier circuit and electronic apparatus including the same |
| US8310218B2 (en) * | 2007-08-08 | 2012-11-13 | Advanced Analogic Technologies, Inc. | Time-multiplexed-capacitor DC/DC converter with multiple outputs |
-
2006
- 2006-12-22 GB GB0625954A patent/GB2444984B/en active Active
-
2007
- 2007-12-13 US US12/000,545 patent/US7626445B2/en active Active
- 2007-12-17 TW TW096148181A patent/TWI432936B/zh active
- 2007-12-21 CN CN201310279544.1A patent/CN103401418B/zh active Active
- 2007-12-21 KR KR1020097015285A patent/KR101076989B1/ko active Active
- 2007-12-21 EP EP07848748.5A patent/EP2095495B1/en active Active
- 2007-12-21 KR KR1020117013027A patent/KR101194508B1/ko not_active Expired - Fee Related
- 2007-12-21 CN CN2007800516530A patent/CN101611531B/zh active Active
- 2007-12-21 JP JP2009542239A patent/JP2010530726A/ja active Pending
- 2007-12-21 KR KR1020127024281A patent/KR101374510B1/ko not_active Expired - Fee Related
- 2007-12-21 WO PCT/GB2007/050788 patent/WO2008078120A1/en not_active Ceased
- 2007-12-21 EP EP15173018.1A patent/EP2975750B1/en active Active
-
2012
- 2012-05-31 JP JP2012124269A patent/JP5599431B2/ja not_active Expired - Fee Related
-
2014
- 2014-08-12 JP JP2014164123A patent/JP5934759B2/ja not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5306954A (en) * | 1992-06-04 | 1994-04-26 | Sipex Corporation | Charge pump with symmetrical +V and -V outputs |
| EP0585925A2 (en) * | 1992-09-02 | 1994-03-09 | Nec Corporation | Voltage converting circuit and multiphase clock generating circuit used for driving the same |
| US5606491A (en) * | 1995-06-05 | 1997-02-25 | Analog Devices, Inc. | Multiplying and inverting charge pump |
| WO2006043479A1 (ja) * | 2004-10-19 | 2006-04-27 | Rohm Co., Ltd | スイッチング電源装置およびそれを用いた電子機器 |
| CN101051787A (zh) * | 2006-03-07 | 2007-10-10 | 罗姆股份有限公司 | 电荷泵式开关电源装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101374510B1 (ko) | 2014-03-13 |
| CN101611531A (zh) | 2009-12-23 |
| WO2008078120A1 (en) | 2008-07-03 |
| JP5934759B2 (ja) | 2016-06-15 |
| TW200844703A (en) | 2008-11-16 |
| US20080150619A1 (en) | 2008-06-26 |
| KR101194508B1 (ko) | 2012-10-25 |
| US7626445B2 (en) | 2009-12-01 |
| EP2095495B1 (en) | 2015-09-30 |
| KR20090094153A (ko) | 2009-09-03 |
| KR20110069181A (ko) | 2011-06-22 |
| KR101076989B1 (ko) | 2011-10-26 |
| EP2095495A1 (en) | 2009-09-02 |
| JP5599431B2 (ja) | 2014-10-01 |
| JP2010530726A (ja) | 2010-09-09 |
| GB2444984B (en) | 2011-07-13 |
| CN103401418A (zh) | 2013-11-20 |
| JP2014239649A (ja) | 2014-12-18 |
| KR20120112876A (ko) | 2012-10-11 |
| EP2975750A1 (en) | 2016-01-20 |
| JP2012213320A (ja) | 2012-11-01 |
| TWI432936B (zh) | 2014-04-01 |
| GB2444984A (en) | 2008-06-25 |
| GB0625954D0 (en) | 2007-02-07 |
| EP2975750B1 (en) | 2020-08-19 |
| CN101611531B (zh) | 2013-08-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103401418B (zh) | 电荷泵电路及包括其的音频设备 | |
| CN101611532B (zh) | 电荷泵电路及其运行方法 | |
| US8508288B2 (en) | Charge pump circuit and methods of operation thereof | |
| US8363856B2 (en) | Audio amplifier circuit and electronic apparatus including the same | |
| US9917508B2 (en) | Charge pump circuit and methods of operation thereof | |
| CN102204086B (zh) | 耳机放大器电路及其供电方法、和便携式电子设备 | |
| WO2012085599A1 (en) | Charge pump circuit | |
| US12381486B2 (en) | Delta-based current steering for power converter peak/valley current control | |
| GB2475633A (en) | An audio amplifier supplied by a reconfigurable charge pump and operable to drive either headphones or a line output | |
| GB2467450A (en) | Current limiting switch driver circuit | |
| GB2472701A (en) | Charge pump circuit with dual rail output |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB02 | Change of applicant information |
Address after: Edinburgh Applicant after: Hongkong Semiconductor Co.,Ltd. Address before: Edinburgh Applicant before: Wolfson Microelectronics PLC Address after: Edinburgh Applicant after: Wolfson Microelectronics PLC Address before: Edinburgh Applicant before: WOLFSON MICROELECTRONICS PLC |
|
| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20150929 Address after: Edinburgh Applicant after: CIRRUS LOGIC INTERNATIONAL SEMICONDUCTOR Ltd. Address before: Edinburgh Applicant before: Hongkong Semiconductor Co.,Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |