JP6392786B2 - エンベロープ追跡型変調器のための改善された共振抑制 - Google Patents
エンベロープ追跡型変調器のための改善された共振抑制 Download PDFInfo
- Publication number
- JP6392786B2 JP6392786B2 JP2015555729A JP2015555729A JP6392786B2 JP 6392786 B2 JP6392786 B2 JP 6392786B2 JP 2015555729 A JP2015555729 A JP 2015555729A JP 2015555729 A JP2015555729 A JP 2015555729A JP 6392786 B2 JP6392786 B2 JP 6392786B2
- Authority
- JP
- Japan
- Prior art keywords
- path
- signal
- power supply
- voltage
- amplifier
- 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
- 230000001629 suppression Effects 0.000 title 1
- 230000008878 coupling Effects 0.000 claims description 37
- 238000010168 coupling process Methods 0.000 claims description 37
- 238000005859 coupling reaction Methods 0.000 claims description 37
- 239000003990 capacitor Substances 0.000 claims description 23
- 230000004044 response Effects 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 7
- 238000001228 spectrum Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000003750 conditioning effect Effects 0.000 claims description 2
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000005457 optimization Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000010420 art technique Methods 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
- H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
- H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
- H03F1/0216—Continuous control
- H03F1/0222—Continuous control by using a signal derived from the input signal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
- H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
- H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
- H03F1/0216—Continuous control
- H03F1/0222—Continuous control by using a signal derived from the input signal
- H03F1/0227—Continuous control by using a signal derived from the input signal using supply converters
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
- H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
- H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
- H03F1/0216—Continuous control
- H03F1/0233—Continuous control by using a signal derived from the output signal, e.g. bootstrapping the voltage supply
- H03F1/0238—Continuous control by using a signal derived from the output signal, e.g. bootstrapping the voltage supply using supply converters
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
- H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
- H03F3/211—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
- H03F3/217—Class D power amplifiers; Switching amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
- H03F3/245—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages with semiconductor devices only
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
- H04L25/40—Transmitting circuits; Receiving circuits
- H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
- H04L25/4902—Pulse width modulation; Pulse position modulation
-
- 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
- H02M1/0045—Converters combining the concepts of switch-mode regulation and linear regulation, e.g. linear pre-regulator to switching converter, linear and switching converter in parallel, same converter or same transistor operating either in linear or switching 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
- H02M3/158—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
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/102—A non-specified detector of a signal envelope being used in an amplifying circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/135—Indexing scheme relating to amplifiers there being a feedback over one or more internal stages in the global amplifier
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/375—Circuitry to compensate the offset being present in an amplifier
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/391—Indexing scheme relating to amplifiers the output circuit of an amplifying stage comprising an LC-network
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/432—Two or more amplifiers of different type are coupled in parallel at the input or output, e.g. a class D and a linear amplifier, a class B and a class A amplifier
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/451—Indexing scheme relating to amplifiers the amplifier being a radio frequency amplifier
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/20—Indexing scheme relating to power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F2203/21—Indexing scheme relating to power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
- H03F2203/211—Indexing scheme relating to power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several amplifiers
- H03F2203/21106—An input signal being distributed in parallel over the inputs of a plurality of power amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/20—Indexing scheme relating to power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F2203/21—Indexing scheme relating to power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
- H03F2203/211—Indexing scheme relating to power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several amplifiers
- H03F2203/21142—Output signals of a plurality of power amplifiers are parallel combined to a common output
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Dc-Dc Converters (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Description
12 周波数スプリッタ
14 配線、経路、修正経路、修正周波数経路
16 配線
18 低域フィルタ
19 遅延、遅延整合要素
20 高域フィルタ
22 スイッチモード増幅器、スイッチモード電源
22a インダクタ
24 線形増幅器、線形出力段
26 結合器
28 低周波数結合要素
28a インダクタ
28b インダクタ
28c コンデンサ
30 高周波数結合要素
30a コンデンサ
30a' コンデンサ
30a'' コンデンサ
32 配線
34 負荷
34a 増幅器
34b 増幅器
36 フィードバック経路
38 減算器
40 フィードバック経路
42 減算器
44 電圧源
50 パルス幅変調器
52a スイッチ
52b スイッチ
54 共通ノード
56 配線
58 フィードバック経路
59 増幅器
60 増幅器
61 結合器
62 フィードバック経路
63 配線
70 点線
71 矢印
72 点線
73 矢印
74 抵抗
76 電圧源
78 電圧源
81 微分増幅器
82 結合器
83 差動増幅器
88 配線
90a インダクタ
90b インダクタ
92a 配線
92b 配線
Claims (14)
- 基準信号に応じて変調された電源電圧を生成するように構成されたエンベロープ追跡型電源であって、
前記基準信号の低周波数変動を追跡するように構成された第1の経路と、
前記基準信号の高周波数変動を追跡するように構成された第2の経路と、
前記追跡された低周波数変動および高周波数変動に基づいて前記変調された電源電圧を生成するように構成された結合器と、
前記結合器内の共振信号を感知するように構成された感知回路と、
前記感知された信号に応じて共振を制御するように前記第1の経路内の信号を調整するように構成された調整回路と
を備え、
前記調整回路が、前記感知された共振信号を前記第1の経路内の制御信号と結合して調整された制御信号を生成するための別の結合器を備え、
前記第1の経路が、スイッチモード電圧出力を生成するためのスイッチを制御するように構成されたパルス幅変調器を含み、
前記パルス幅変調器が、前記調整された制御信号に応じて変更されるように構成され、
前記スイッチの出力における電流を感知するように構成された電流制御フィードバックループをさらに備え、
前記制御信号が前記感知された電流に応じて生成される、エンベロープ追跡型電源。 - 前記感知回路が、前記第1の経路または前記第2の経路内の前記共振信号を感知するように適合される、請求項1に記載のエンベロープ追跡型電源。
- 前記感知回路が、結合要素にわたって生じた電圧または前記結合要素内を流れる電流を感知するように構成された回路を備える、請求項1に記載のエンベロープ追跡型電源。
- 前記感知回路が、前記結合要素にわたって生じた前記電圧を感知するように構成され、前記感知回路が、2つの入力を有する差動増幅器を備え、前記差動増幅器の1つの入力が前記結合要素の各端子に結合される、請求項3に記載のエンベロープ追跡型電源。
- 結合要素がコンデンサを備えた高域結合要素である、請求項3又は4に記載のエンベロープ追跡型電源。
- 結合要素が低域結合要素である、請求項3又は4に記載のエンベロープ追跡型電源。
- 前記感知回路が前記結合器の低域結合要素内に電流感知増幅器、および前記電流感知増幅器の出力と前記基準信号との間の差を増幅するための差動増幅器を備え、前記第1の経路内の第1の信号が前記差動増幅器の出力に応じて調整される、請求項6に記載のエンベロープ追跡型電源。
- 前記パルス幅変調器を制御するように構成された差動増幅器をさらに備え、前記差動増幅器が、前記調整された制御信号に接続された1つの入力、および前記感知された電流に接続されている1つの入力を有する、請求項1に記載のエンベロープ追跡型電源。
- 前記基準信号から、前記電流制御フィードバックループを介して感知される電流信号を減算して前記制御信号を生成するように構成された差動結合器をさらに備える、請求項1に記載のエンベロープ追跡型電源。
- 前記スイッチの出力における電圧を感知するように構成された電圧制御フィードバックループをさらに備え、前記パルス幅変調器が、前記調整された制御信号と前記電圧制御フィードバックループからの電圧との間の差に応じて変更される、請求項1に記載のエンベロープ追跡型電源。
- 前記電圧制御フィードバックループからの電圧が前記基準信号と結合される、請求項10に記載のエンベロープ追跡型電源。
- 前記第2の経路が、線形増幅器の出力を前記線形増幅器の入力に接続し、この結果前記線形増幅器が前記基準信号と前記線形増幅器の前記出力との間の差を増幅して前記結合器内で結合するための出力電圧を生成するように構成された、フィードバック経路を有する、前記線形増幅器を備える、請求項1から11のいずれか一項に記載のエンベロープ追跡型電源。
- 前記第1の経路が、前記第1の経路内の線形増幅器の出力から前記第1の経路内の前記線形増幅器の入力へのフィードバック経路を有する、前記線形増幅器を備え、また、前記第1の経路内の前記線形増幅器が、前記基準信号の周波数の完全なスペクトルを備える信号を増幅するように構成された、請求項1から12のいずれか一項に記載のエンベロープ追跡型電源。
- エンベロープ追跡型電源において基準信号に応じて変調された電源電圧を生成するための方法であって、
第1の経路内の前記基準信号の低周波数変動を追跡するステップと、
第2の経路内の前記基準信号の高周波数変動を追跡するステップと、
結合器において、前記追跡された低周波数変動および高周波数変動に基づいて前記変調された電源電圧を生成するステップと、
前記結合器内の共振信号を感知するステップと、
前記感知された共振信号に応じて前記第1の経路内の信号を調整するステップと
を含み、
前記第1の経路内の信号を調整するステップが、前記感知された共振信号を前記第1の経路内の制御信号と結合して調整された制御信号を生成するステップを備え、
前記第1の経路が、スイッチモード電圧出力を生成するためのスイッチを制御するように構成されたパルス幅変調器を含み、前記パルス幅変調器が、前記調整された制御信号に応じて変更されるように構成され、
前記方法が、前記スイッチの出力における電流を感知するステップをさらに備え、
前記制御信号が前記感知された電流に応じて生成される、方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1301855.1A GB2510396A (en) | 2013-02-01 | 2013-02-01 | Controlling resonance in an envelope tracking power supply |
GB1301855.1 | 2013-02-01 | ||
PCT/EP2014/051960 WO2014118341A2 (en) | 2013-02-01 | 2014-01-31 | Improved resonance suppression for envelope tracking modulator |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2016507190A JP2016507190A (ja) | 2016-03-07 |
JP2016507190A5 JP2016507190A5 (ja) | 2017-02-23 |
JP6392786B2 true JP6392786B2 (ja) | 2018-09-19 |
Family
ID=47988595
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2015555729A Active JP6392786B2 (ja) | 2013-02-01 | 2014-01-31 | エンベロープ追跡型変調器のための改善された共振抑制 |
Country Status (7)
Country | Link |
---|---|
US (1) | US9628025B2 (ja) |
EP (1) | EP2951922B1 (ja) |
JP (1) | JP6392786B2 (ja) |
KR (1) | KR102162783B1 (ja) |
CN (1) | CN105052036B (ja) |
GB (1) | GB2510396A (ja) |
WO (1) | WO2014118341A2 (ja) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9954436B2 (en) | 2010-09-29 | 2018-04-24 | Qorvo Us, Inc. | Single μC-buckboost converter with multiple regulated supply outputs |
US9813036B2 (en) | 2011-12-16 | 2017-11-07 | Qorvo Us, Inc. | Dynamic loadline power amplifier with baseband linearization |
US9300252B2 (en) | 2013-01-24 | 2016-03-29 | Rf Micro Devices, Inc. | Communications based adjustments of a parallel amplifier power supply |
US9445371B2 (en) * | 2014-08-13 | 2016-09-13 | Skyworks Solutions, Inc. | Apparatus and methods for wideband envelope tracking systems |
US9595869B2 (en) * | 2015-02-27 | 2017-03-14 | Qualcomm Incorporated | Multi-level switching regulator circuits and methods with finite state machine control |
GB2538782A (en) * | 2015-05-28 | 2016-11-30 | Snap Track Inc | Improved tracking |
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 |
US10103693B2 (en) | 2015-09-30 | 2018-10-16 | Skyworks Solutions, Inc. | Power amplifier linearization system and method |
US9973147B2 (en) | 2016-05-10 | 2018-05-15 | Qorvo Us, Inc. | Envelope tracking power management circuit |
US10110169B2 (en) | 2016-09-14 | 2018-10-23 | Skyworks Solutions, Inc. | Apparatus and methods for envelope tracking systems with automatic mode selection |
US10236831B2 (en) | 2017-05-12 | 2019-03-19 | Skyworks Solutions, Inc. | Envelope trackers providing compensation for power amplifier output load variation |
US10516368B2 (en) | 2017-06-21 | 2019-12-24 | Skyworks Solutions, Inc. | Fast envelope tracking systems for power amplifiers |
US10615757B2 (en) | 2017-06-21 | 2020-04-07 | Skyworks Solutions, Inc. | Wide bandwidth envelope trackers |
US10476437B2 (en) | 2018-03-15 | 2019-11-12 | Qorvo Us, Inc. | Multimode voltage tracker circuit |
US11387797B2 (en) | 2019-03-15 | 2022-07-12 | Skyworks Solutions, Inc. | Envelope tracking systems for power amplifiers |
US11374538B2 (en) * | 2019-04-09 | 2022-06-28 | Skyworks Solutions, Inc. | Apparatus and methods for envelope tracking |
CN110365296B (zh) * | 2019-05-27 | 2024-02-13 | 陕西亚成微电子股份有限公司 | 一种用于射频功率放大器的电源 |
US12040758B2 (en) | 2022-06-30 | 2024-07-16 | Avago Technologies International Sales PTE, Limited | Current sensing circuit with integrated resistor and switch matrix |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5543753A (en) * | 1994-06-22 | 1996-08-06 | Carver Corporation | Audio frequency power amplifiers with actively damped filter |
KR101434604B1 (ko) * | 2008-03-03 | 2014-08-26 | 삼성전자주식회사 | 제로 전류 스위칭을 이용한 바이어스 모듈레이터 장치 및 방법 |
JP5430438B2 (ja) * | 2010-02-18 | 2014-02-26 | パナソニック株式会社 | デジタルアンプ |
JP2011193054A (ja) * | 2010-03-11 | 2011-09-29 | Fujitsu Ltd | 電源装置及び電源装置制御方法 |
GB2484475A (en) * | 2010-10-11 | 2012-04-18 | Toshiba Res Europ Ltd | A power supply modulator for an RF amplifier, using a current-output class G amplifier |
US20130342185A1 (en) * | 2011-03-03 | 2013-12-26 | Nec Corporation | Power supplying apparatus and control method thereof |
WO2013115039A1 (ja) * | 2012-02-03 | 2013-08-08 | 日本電気株式会社 | 電源装置及びこれを用いた送信装置 |
-
2013
- 2013-02-01 GB GB1301855.1A patent/GB2510396A/en not_active Withdrawn
-
2014
- 2014-01-31 CN CN201480016583.5A patent/CN105052036B/zh active Active
- 2014-01-31 US US14/765,246 patent/US9628025B2/en active Active
- 2014-01-31 WO PCT/EP2014/051960 patent/WO2014118341A2/en active Application Filing
- 2014-01-31 EP EP14704544.7A patent/EP2951922B1/en active Active
- 2014-01-31 KR KR1020157023511A patent/KR102162783B1/ko active Active
- 2014-01-31 JP JP2015555729A patent/JP6392786B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
US9628025B2 (en) | 2017-04-18 |
KR20150117681A (ko) | 2015-10-20 |
CN105052036A (zh) | 2015-11-11 |
GB201301855D0 (en) | 2013-03-20 |
EP2951922B1 (en) | 2019-01-02 |
KR102162783B1 (ko) | 2020-10-07 |
US20160006397A1 (en) | 2016-01-07 |
EP2951922A2 (en) | 2015-12-09 |
CN105052036B (zh) | 2018-08-28 |
WO2014118341A2 (en) | 2014-08-07 |
WO2014118341A3 (en) | 2014-11-27 |
GB2510396A (en) | 2014-08-06 |
JP2016507190A (ja) | 2016-03-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6392786B2 (ja) | エンベロープ追跡型変調器のための改善された共振抑制 | |
US10079576B2 (en) | Envelope tracking modulator with feedback | |
JP6199414B2 (ja) | Et変調器のための改善された電圧ブースト | |
US9590563B2 (en) | 2G support for 2G and 3G/4G envelope tracking modulator | |
CN104662792B (zh) | 用于包络跟踪的可编程rf陷波滤波器 | |
WO2014118344A2 (en) | Low power modes for 3g/4g envelope tracking modulator | |
US20190245494A1 (en) | Power amplifier | |
CN209881739U (zh) | 一种在调制级减小相位失真的pwm功率放大器 | |
JP2013165384A (ja) | 電源変調装置及び増幅装置 | |
WO2016130780A1 (en) | Ac amplifier output impedance reduction | |
GB2550019A (en) | Prevention of switching discontinuity in a hybrid switched mode amplifier | |
JP2014011763A (ja) | D級増幅回路及びd級増幅方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20170116 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20170116 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20180216 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20180312 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20180612 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20180730 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20180823 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6392786 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |