JP7166261B2 - 高度に統合された高圧アクチュエータドライバ - Google Patents
高度に統合された高圧アクチュエータドライバ Download PDFInfo
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- JP7166261B2 JP7166261B2 JP2019541158A JP2019541158A JP7166261B2 JP 7166261 B2 JP7166261 B2 JP 7166261B2 JP 2019541158 A JP2019541158 A JP 2019541158A JP 2019541158 A JP2019541158 A JP 2019541158A JP 7166261 B2 JP7166261 B2 JP 7166261B2
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Classifications
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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
- 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
- H02M3/1582—Buck-boost converters
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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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
- H02M1/083—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the ignition at the zero crossing of the voltage or the current
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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
- 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
- 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
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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
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
- H02M3/33576—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
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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
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
- H02M3/33576—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
- H02M3/33584—Bidirectional converters
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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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M7/219—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a bridge configuration
- H02M7/2195—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a bridge configuration the switches being synchronously commutated at the same frequency of the AC input voltage
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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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/34—Analogue value compared with reference values
- H03M1/38—Analogue value compared with reference values sequentially only, e.g. successive approximation type
- H03M1/46—Analogue value compared with reference values sequentially only, e.g. successive approximation type with digital/analogue converter for supplying reference values to converter
- H03M1/462—Details of the control circuitry, e.g. of the successive approximation register
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/34—Analogue value compared with reference values
- H03M1/38—Analogue value compared with reference values sequentially only, e.g. successive approximation type
- H03M1/46—Analogue value compared with reference values sequentially only, e.g. successive approximation type with digital/analogue converter for supplying reference values to converter
- H03M1/466—Analogue value compared with reference values sequentially only, e.g. successive approximation type with digital/analogue converter for supplying reference values to converter using switched capacitors
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/34—Analogue value compared with reference values
- H03M1/38—Analogue value compared with reference values sequentially only, e.g. successive approximation type
- H03M1/46—Analogue value compared with reference values sequentially only, e.g. successive approximation type with digital/analogue converter for supplying reference values to converter
- H03M1/466—Analogue value compared with reference values sequentially only, e.g. successive approximation type with digital/analogue converter for supplying reference values to converter using switched capacitors
- H03M1/468—Analogue value compared with reference values sequentially only, e.g. successive approximation type with digital/analogue converter for supplying reference values to converter using switched capacitors in which the input S/H circuit is merged with the feedback DAC array
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/80—Constructional details
- H10N30/802—Circuitry or processes for operating piezoelectric or electrostrictive devices not otherwise provided for, e.g. drive circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0009—Devices or circuits for detecting current in a converter
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
- H02M1/007—Plural converter units in cascade
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N1/00—Electrostatic generators or motors using a solid moving electrostatic charge carrier
- H02N1/002—Electrostatic motors
- H02N1/006—Electrostatic motors of the gap-closing type
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/02—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors
- H02N2/06—Drive circuits; Control arrangements or methods
- H02N2/065—Large signal circuits, e.g. final stages
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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)
- Theoretical Computer Science (AREA)
- Dc-Dc Converters (AREA)
- Inverter Devices (AREA)
Description
本出願は、「Highly Integrated High Voltage Actuator Driver」というタイトルで2017年2月3日に出願された米国仮特許出願シリアル番号62/454,230号の利益を主張しており、この特許はその全体が参照により本明細書に組み込まれている。
によって推定することができ、
この場合、fswは、コンバータスイッチング周波数であり、fsigは、出力信号の周波数である。標準的なアナログ理論によって、分解能は、理想的な歪みレベルと関連付けることができる。
制御ドライバの一例の実施形態1410、1420の2つのブロック図である。これらの実施形態では、コントローラ1410、1420は、ドライバの現在の状態についてのデジタルコントローラの内部の様々な状態変数を通して利用可能な情報を使用して、コントローラの比例ゲインKpおよび積分ゲイン(Ki)を適応させる。結果として波形の歪みが低減する。図14Aは、より特殊である。図14Bは、ドライバ状態変数の関数に従うKpおよびKiのスケーリングがどのようにシステム性能を高めるかを例示するのにより一般的である。図14Aおよび図14Bは、コンバータスイッチング周波数(fsw)、たどるための電圧基準(Vref)、比例ゲイン(Kp)、積分ゲイン(Ki)、コンバータ伝達関数(H(z))、外乱(D)、フィードバックゲイン(Gain)およびコンバータの出力電圧(Vout)を示している。最も簡素な実施形態では、Kpは、出力電圧と共に線形にスケール変更されてよく(Kp'∝Vout×Kp)、Kiは、スイッチング周波数(fsw)と線形にスケール変更されてよい(Ki'∝sw×Ki)。Dは、実際の実装形態に存在し得る何らかの外乱を表している。H(z)は、離散時間表現でのシステムの伝達機能を表しており、z-1は、離散時間表現を用いてコントローラにおいて一般に使用されるz変換に対応付けられた演算子である。例示の実施形態では、fswは、150kHzと1MHzの間の範囲内である。
によって算出されてよく、この場合、fは出力波形の周波数であり、Cは容量性負荷を表し、Vpkは、波形のピーク振幅を表している。P=Pexampleに関して設計された特有の実施形態の場合、結果としてのPがこの実施形態の最大値P(Pexample)を下回る限り、f、CおよびVpkの任意の組み合わせが可能であってよく、Vpkは、使用されるパワーデバイスのブレークダウン電圧に等しい、またはそれを下回り、fは、最大帰還帯域および/またはこの実施形態のスイッチング周波数を下回る。一部の例示の実施形態では、最大帰還帯域は500kHzであってよく、数百kHzの範囲内の最大スイッチング周波数、つまり実際の最大周波数は、50kHzの範囲内で高くなる。実施形態は、小型で(PCBおよびダイ)、単一インダクタの、高度に統合された低電力トポロジーにおいて履行されてよい。実施形態は、高周波数双方向電力コンバータに給電する入力段を有し、フルブリッジ低ロススイッチ網によって受け取られる折り畳まれた波形を生成し、このスイッチ網は、波形を展開して容量性負荷を駆動する。
であり、
この場合、Mは、メインのサブDAC2580のビットの数を表しており、Sは、MSBサブDAC2570のビットの数を表している。対照的に、DAC実施形態2500の場合、面積式は、
である。8ビットDACに関してより少ないコンデンサを有する結果として、DAC実施形態2500の下で、4bサブDACを有するシングルエンドDACに関する面積は、48Cから32Cまで低下し、元のコンデンサ面積の33.3%を排除する。総体的に、DAC実施形態2500は、コンデンサ群がSARADCにおいて面積の大部分を消費するため、総ADC面積を有意に減少させ、例示の実施形態では約50%減少させる。
この場合αは正確な過渡期に基づいた因数であり、Cは、アレイ内のユニットコンデンサの値である。式5は、V2 refの二次関係が、2つの鍵となる要因、すなわちVrefの電圧レベルと、Vrefから引き出される総電流、すなわち電荷の品質(Q)に結び付けられていることを示している。Vrefがどのように生成されようとも、電流レベルは、容量性DACではより少ない電荷が移動するためVrefの値と共に変倍する。しかしながらVrefが、LDOなどの損失の大きいメカニズムによって生成される場合、入力電圧源の値を使用して有効なエネルギー要件を計算する必要がある。
Claims (13)
- 低電圧源(VIN)を受け取る単一のインダクタ(L1)を備える入力部(2010)に結合され、出力電圧(VOUT)によって容量性負荷(2090)を駆動するように構成されたシングルダイドライバ集積回路(IC)(2020、2120)であって、
スイッチングノードにおいて前記入力部からスイッチング電圧Vswを生成し、前記低電圧源から高電圧波形VFOLDEDを生成するように構成された双方向同期電力コンバータ段(2030)と、
前記電力コンバータ段のスイッチを制御するように構成された埋め込み式コントローラ(2050)とを備え、
前記双方向同期電力コンバータ段は、順方向の昇圧モードでは前記負荷にエネルギーの増加を伝達し、逆方向の降圧モードでは前記負荷からエネルギーの増加を伝達することによって前記低電圧源から前記高電圧波形を生成するように構成された昇圧-降圧コンバータを備える、2-スイッチコンバータである、シングルダイドライバ集積回路(IC)。 - 前記低電圧源は、2~6ボルトの範囲内である、請求項1に記載のドライバ。
- 前記出力電圧は、前記入力電圧より大きな振幅を有し、出力ローパスフィルタなしで5%未満の出力歪みを実現するアナログ出力波形を有する、請求項1に記載のドライバ。
- 前記入力部は、前記低電圧源と前記高電圧波形にわたって接続されたフィルタコンデンサ(CFILTER)と、前記低電圧源と前記単一のインダクタとの間に接続された感知抵抗器(R1)とをさらに備え、前記単一のインダクタは、前記感知抵抗器と、前記電力コンバータ段のスイッチングノードとの間に接続される、請求項1に記載のドライバ。
- 前記入力部における双方向の電流を検出するように構成された電流フィードバックセンサ(2052)と、
前記スイッチングノード電圧Vswに関してゼロ電圧条件を検出するように構成されたゼロ電圧スイッチング(ZVS)検出器(2053)と、
外部周辺デバイスから入力を受け取る、および/または前記外部周辺デバイスに入力を送信するように構成された通信インターフェース(2054)と、
VFOLDEDノードと、VINノードとの間に配置された差動増幅器2056から出力を受け取るように構成されたアナログデジタルコンバータ(ADC)(2055)とをさらに備え、
前記埋め込み式コントローラは、前記電流フィードバックセンサ、前記ZVS検出器、前記通信インターフェースおよび前記ADCのうちの少なくとも1つから信号を受信するように構成される、請求項1に記載のドライバ。 - 能動スイッチ(M9)およびコンパレータ(2156)を備える、単一方向電力入力段(2110)をさらに備え、前記埋め込み式コントローラは、前記コンパレータから信号を受け取るように構成される、請求項5に記載のドライバ。
- 前記ADCは、
スイッチ(SW series )を介して前記入力電圧と供給電圧(VDD)を基準にする第1のシングルエンドnビットハイブリットデジタルアナログコンバータ(DAC)(2610)を備える、第1のDACと、
前記入力電圧を切り換え可能に基準にし、前記スイッチ(SWseries)を介して前記第1のDACに直列に接続された第2のシングルエンドnビットハイブリットデジタルアナログコンバータ(DAC)(2620)を備える、第2のDACと、
前記第1のDACからの第1の出力および前記第2のDACからの第2の出力を受け取るように構成されたコンパレータと、
前記第2のDACにnビットの出力を提供し、前記第1のDACに8ビット出力の補数を提供するように構成された逐次近似レジスタ(SAR)(2650)とをさらに備え、
nは、正の整数であり、前記第1のDACおよび前記第2のDACは、疑似差動バイポーラ方式で組み合わされる、請求項5に記載のドライバ。 - 前記埋め込み式コントローラは、前記負荷にわたって前記電圧を感知し、リアルタイムで前記出力の状態および/または電圧を前記通信インターフェースを介して提供するように構成される、請求項5に記載のドライバ。
- 前記埋め込み式コントローラは、前記通信インターフェースを介して受信した基準波形を追跡して、前記双方向同期電力コンバータ段および/または前記フルブリッジ段を制御して、前記基準波形に従って前記フルスイング信号を生成するように構成される、請求項5に記載のドライバ。
- 前記負荷にわたってフルスイング信号を生成するために、前記高電圧波形を受け取り、展開するように構成された4つのスイッチ(M3~M6)を備える低周波数フルブリッジ段(2040)をさらに備える、請求項1~9のいずれかに記載のドライバ。
- 前記低周波フルブリッジ段は、前記4つのスイッチのうちの最初の対(M3~M4)を駆動する第1のハーフブリッジドライバ(2210)と、前記4つのスイッチのうちの第2の対(M5~M6)を駆動する第2のハーフブリッジドライバ(2220)とをさらに備える、請求項10に記載のドライバ。
- 前記埋め込み式コントローラは、前記第1のハーフブリッジドライバおよび/または前記第2のハーフブリッジドライバを制御するようにさらに構成される、請求項11に記載のドライバ。
- 前記低周波数フルブリッジ段は、300Hz以下の周波数範囲にわたって動作するように構成される、請求項10に記載のドライバ。
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EP3577751A4 (en) | 2020-11-25 |
WO2018144866A1 (en) | 2018-08-09 |
EP3577751A1 (en) | 2019-12-11 |
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US10666145B2 (en) | 2020-05-26 |
US20190379288A1 (en) | 2019-12-12 |
US10931199B2 (en) | 2021-02-23 |
CN110249516B (zh) | 2022-03-11 |
KR102527046B1 (ko) | 2023-04-27 |
US20200244171A1 (en) | 2020-07-30 |
CN110313132A (zh) | 2019-10-08 |
JP2020506654A (ja) | 2020-02-27 |
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