TWI361342B - Voltage regulator - Google Patents

Voltage regulator Download PDF

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Publication number
TWI361342B
TWI361342B TW093125133A TW93125133A TWI361342B TW I361342 B TWI361342 B TW I361342B TW 093125133 A TW093125133 A TW 093125133A TW 93125133 A TW93125133 A TW 93125133A TW I361342 B TWI361342 B TW I361342B
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TW
Taiwan
Prior art keywords
voltage
regulator
conductive
switch
output
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Application number
TW093125133A
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English (en)
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TW200517801A (en
Inventor
Sutardja Sehat
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Marvell World Trade Ltd
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Publication of TW200517801A publication Critical patent/TW200517801A/zh
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Publication of TWI361342B publication Critical patent/TWI361342B/zh

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M3/00Conversion of dc power input into dc power output
    • H02M3/02Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10Conversion 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
    • H02M3/145Conversion 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
    • H02M3/155Conversion 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
    • H02M3/156Conversion 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
    • H02M3/158Conversion 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
    • H02M3/1584Conversion 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 with a plurality of power processing stages connected in parallel
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M3/00Conversion of dc power input into dc power output
    • H02M3/02Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10Conversion 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
    • H02M3/145Conversion 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
    • H02M3/155Conversion 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
    • H02M3/156Conversion 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
    • H02M3/157Conversion 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
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M1/00Details of apparatus for conversion
    • H02M1/0003Details of control, feedback or regulation circuits
    • H02M1/0012Control circuits using digital or numerical techniques

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Description

丄則342 九、發明說明: 【發明所屬之技術領域】 本發明涉及電子電路的電源系統,特別涉及電源系統 電壓調節器。 【先前技術】 ,現代數位邏輯設備現在採用〇.13μιη工藝或更小尺寸的技 術進行製造。這些小尺寸工藝設備在非常低的電壓下(比以前 用於大多數設備的電愿低得多)工作,在不久的將來,.可能就 會普遍工作在i伏以下。在這些使用低電屋的設備系統中,一 個挑戰是,怎樣才能有效地將傳統系統令所用的主電源,如$ 伏或12伏電源,應用於這些j伏以下的低電麼言史備。 、特別是’傳統的非隔離降壓直流_直流變換器對於將以伏 電源轉換成1伏電源來說效率過低。為了調節輸出電磨,傳統 的降壓變換器會改變導通週期的脈衝寬度。為了將㈣轉換成 L伏’ 1統的非隔離降壓直流·直流變換器的占空比將非常小, 這導致南轉換損耗以及低功率效率。 【發明内容】 根據本么月的一些實施例,提供了一種耗合電感調節器系 广人用於將來自電源的輸入電壓轉換成輸出端的輸出電屋,該 :電感調即益系統包括:至少兩個導電開關,用以將能量從 咸::、傳达至輸出端;與至少兩個導電開關相連接的至少兩個電 1 中上述至少兩個電感器是在—個公共鐵心上繞制的, 泣:母個電感器所具有的極性使得這至少兩個電感器中的直 "II·彼此抵消,並且其中電感器具有接近等於i的耦合係 丄观342 數”上述至从兩個導電開關相連接的至少兩個穩流開關,用 =在非導通週期中為電流提供路徑;以及產生驅動信號的驅動 信號發生器,每個驅動信號具有約5〇%的占空比,其中驅動信 號控制上述導電開關。 ° 口口根據本發明的另一些實施例,提供了一種搞合電感調節 盗’用於將來自電源的輸入電壓轉換成輸出端的輸出電壓,該 耗合電感調節器包括:控制導通時間的至少兩種相位信號’ ^ =兩個驅動a ’其響應上述至少兩種相位信號而從電源傳送能 里’連接於上述至少兩個藤動器和輸出端之間的橋形網路,該 ,形網路由耦合電感器構成而具有N級,其中N至少是丨,= 每-級中有成對的電感器’這些成對電感器各自具有接近等於 1的耦合係數;其中每種相位信號具有約1〇〇%/2N的占空比; 而輸出電壓則約等於所述輸入電壓除以2N。 還應指出,本申請要求於2003年8月21日提交的美國臨 時專利申請第刪96 957號的權益,其全勒容在此結合作為 參考。 在附圖和下面的說明書中,闡明本發明一個或多個實施例 的詳細内容。根據說明書和附圖以及從中請專利範圍,本發明 的其他特徵、目的以及優點將是顯而易見的。 【實施方式】 第一圖不出了耦合電感調節器10的實施例的功能方塊 圖’祕合電感調g卩n用於給—個或多個設備提供電能,上述 -個或多個設備例如為高速驅動器以及其他電子設備。耗
感調節器10可開環工作,以將& # M 乂埘w入電壓vDD轉換成非隔離的輸 出電壓νουτ。該輸出電壓的幅值約為輸入電壓的整數倍或者整 數因數並且可由耗合電感調節器10的結構和搞合電感調節器 1361342 ,即益320中的各點,如2:1調節器324的輸出端和降壓變換 器322的輸出端,傳送到降壓變換器322。由於與單個降慶變 換器直接將Vin變換成ν〇_比’降麼變換器322的輸出電流 的幅值是前者的輸出電流的一半,因此與僅用單個降壓變換= 產生Vout相比,降壓變換器322的輪出裝置可有利地在尺寸上 以大小至少為2的因數減小,亦即與僅用單個降壓變換器時相 比’降壓變換器322的輸出裝置的尺寸可減小到前者的尺寸至 二除以2。上述輸出裝置可包括諸如輸出電容器和輸出電感器 等器件。有利的是’本發明人認識到2:1調節器324的輸出端 φ 上的紋波電壓將減小到降壓變換器322的輸出端上的紋波電壓 除以因數2’因此可以將更小的輸出裝置用於降麼變換器如。 另外’電容器的體積效率通t直接關係到電容器的額定電壓, 因此隨,容額定值的額定電壓增加,通常電容器的體積減小 (VH/VL)2,其中VH是較高額定電壓,* %是較低額定電壓。 另外’電感器的體積直接與流過電感器的電流的平方有關,因 此隨電感器的最大額定電流減小,電感器㈣㈣減小。在一 個實施例中’可用多回饋信號進行VLVHC調節器no的多回 路控制。可採用任何-種多回路控制技術,例如加權回饋信號、籲 從多個回饋信號中選擇-個回饋信號、及改變每個反饋回路的 響應時間。例如’從降壓變換器輸出端到降壓變換器⑵的内 反饋回路的回應可设定為比從v〇ut到降壓變換器322的外部 回路慢。 另外’與僅用-個非隔離降壓變換器將vin變換成乂〇加相 比’爾H C調節器3 2 〇的總功率效率可以更低。第九b圖示 出了在-個由Vln產生Vout的非隔離降壓變換器中,流過導電 開關的電流Ids @波形326,該降壓變換器的占空比可以比 18 VLVHC調節器320中的占空比低約四倍。 過導電開關的峰值電流可比流過醫 :占 關的峰值電流高約畔,從 m的導電開 比VLVHC V。 導致降壓變換器中的開關損耗可 非隔離降謝的開關損㈣高4倍。 出在導電ml ί 中的功率耗散Pd的波形328顯示 出在導電開關的切換過程中發生的高開關損耗。 節写m示出了用於產生低鍾輸出的極低電壓高電流調 調f調節器)的另-實施例。咖hc調節器340 340在電源346P=20在功成上類似,區別是VLVHC調節器 和可包括兩個或更多個相合電感調節器342 節器⑵調節器、h調節t和344較佳是降壓式箱合電感調 小電源346❾輪出裝置=^4:1調節器等等)’以便獲得減 合電感調節器的任一、實广例,’显處’然而本發明的範圍包括耦 器。 只& 例如具有1:2升壓比的升壓調節 節器二::=心=電:輸出的極低電壓高電流調 與域C調節器34。:;力:另施例,VHC調節器37。 37〇在電源376之前可勺^上類似,區別是VLVHC調節器 和別,合電感調節;^;或^個電感器搞合調節器仍 合電感調節器的降壓&槿 4可具有任—結構,例如搞 器等等),升!处構(二(調節器、3:1調節器、4:1調節 第十:圓Γ:調節器),以及反相結構。謂 系统350可包括電源松= 350的一個實施例。多級調節器 調節器354〜36〇的降壓變接到兩個或更多個搞合電感 奐斋。有利的是,多級調節器系統35〇 19

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1361342 十、申請專利範圍厂… 種%屋調節器系统,用於 成輸出端的輪出電壓,1特朿自電源的輸人電壤轉換 -低損耗T 該調節器系統包括: 2耗調郎器’其由所述輸入 ,合電感調節器,其由所 生中間電堡; 所述低損耗調節器,回庳爽白裕、:昼產生所述輸出電·; 號及來自所述中間電 輸出電壓的第-回饋信 使得料輸出電壓調節到;;3=調節所述中間電屡, 權’以控制所饋信號及所述第二回饋信號加 2’如申請專利範圍第〗項所 4一回饋信號與—參考電塵進行比較r而Γ 將所述 所述調節器系統還包括一場效 ). 準放大器而調節所述中間電麼。日體卿),其回應該基 包含 所述第-及第二回鎮^中選^述輪出電壓和所述争間電㈣ 令選擇-個’用以控制所述輪出電壓。 4·如申請專利範圍第1 包含:―多回路控制系统,皇勺所^用的電麼調節器系統,進一步 速内部回路和用以押制所.f. ^ 以控制所述中間電壓的慢 f Μ控制所迷輸出電㈣快速外部回路。 5.如申請專利範圍第〗項所述的 述耦合電感調節器包括: 5 P盗系統,其中所 28 1361342 至少兩個導電開關,用以將能量從所述電源傳送至所述輸 出端; 至少兩個電感器,其與所述至少兩個導電開關相連接所 述至少兩個電感器是在一公共鐵芯上繞製在一起的,並且每個 電感器所具有的極性使得各所述電感器中的直流電流彼此抵 消’所述電感器具有接近等於1的耦合係數; 至 >'兩個穩流開關,其與所述至少兩個導電開關相連接, 用以在非導通週期為電流提供路徑;以及 驅動U發生器’用以產生驅動信號’每個驅動信號具 有約鄕的Μ比’所舰動信號㈣所述至少兩個導電開 關。 6.如申凊專利範圍第5項所述的電壓調節器系統,盆中所 個導電開關、所述至少兩個電感器、及所述至i兩個 降壓結構連接而使得所述輸出電壓的幅值約等 琴1的一半’其令所述降壓結構包括兩個降麗調節 盗、、中每個降壓調節器以約占空 兩個降壓調節器中的每一個包括: U所述 導電開其與所述穩流開關和所述電感器相連接,該 所述輸出$ 電流從所述電源通過所述電感器傳送至 号的電通週期’所述穩流開關為流過所述電感 益的电机棱供到所述輸出端的導電路徑。 电 7·如申請專利範圍第5項所述的雷 #。。 述至少兩個導電開_其中—個電―线,其中所 少兩個導電開關的另-個則具有第導通時間,而所述至 時間與所述第二導通時間是由非導通時 29 1361342 非導通時間的持續時間略小於所述第一導通時間和所述第 It::持續時間’並且其中所述至少兩個導電開關的總導通 時間接近於但是小於100%。 8’如申凊專利範@第5項所述的電㈣節器系統,盆中所 個導電開關包括第-導電開關和第二導電開關:、所述 屯開關接收第-驅動信號,而所述第二導電開 其中所述至少兩個穩流開關包括第-穩流開關和 ^ t ’所述第一穩流開關接收所述第二驅動信號,所 流開關接收所述第-驅動信號,並且其t所述的第- 二㈣信號為具有一相位偏移量的相同信號,該相位 里於360度除以所述至少兩個導電開關的數量。 雷舞Lrf多級輕合電感調節器系統,用於將來自電源的輸入 =轉換成輸出端的輸出電屋,其特徵在於該多級調節器系統 壓 第-轉合電感調節器,其由所述輸入電壓產生一中間電 该第—耦合電感調節器具有第一特徵尺寸; 壓 第^合電感調節器’其由所述中間電屢產生所述輸出電 5玄第—耦合電感調節器具有第二特徵尺寸. 所述第-特徵尺寸不等於所述第二特徵尺寸;以及 回具有來自所述中間電®至該第二搞合 電:调=的的一前饋信號’以及來自所述輸出電壓的一回饋 中該h料制系統包含—電路,該電路對來自所述 ==和所述中間電壓的所述回饋和前饋信號加權,以控制 所述輸出電壓。 1361342 統:中:3 = = :所述的,合電感調節器系 結構設置’並且其令所;各:均以-種降屋 二特徵尺寸。 ^特徵尺核於、或料於所述第 1 1.戈口 #,饮^、/月J乾圍第9項所述的多級福合電感調節器系 、’〜、斤述的第—和第二福合電感調節器各自包括·· ’、 至少兩個導電開關’用以從所述電源將能量傳送至輸出端. ,少兩個電^器,其與所述至少兩個導電開關相連接,所 :减:::ί感益疋在一公共鐵心上繞製在-起的,並且每個 :感益^、有的極性使得各所述電感”的直流電流彼此抵 4 ’所述電感器具有的耦合係數約等於1; 至少兩個穩流開關,其與所述至少兩個導電開關相連接, 用以在非導通週期為電流提供路徑;以及 驅動L號發生器,其產生驅動信號,每個驅動信號具有 約50%的占空比’所述驅動信號控制所述至少兩個導電^關。 如申請專利範圍第Π項所述的多級耦合電感調節器系 統’其中所述的第一和第二叙合電感調節器各自均以一種降壓 結構連接,使得每個耦合電感調節器的輸出電壓的幅值約等於 該耦合電感調節器的輸入電壓的一半, 其中每個耦合電感調節器的降壓結構包括兩個降壓調節 器’每個降壓調節器以約50%占空比工作,以及 其中該至少兩個降壓調節器中的每一個包括一導電開關, δ玄‘電開關與一穩流開關和一電感器相連接,在所述導電開關 導通週期將電流從所述電源通過所述電感器傳送至所述輸出 端,而在非導通週期,所述穩流開關為流過所述電感器的電流 31 1361342 提供到所述輸出端的導電路徑。 間,而所述至少兩個導電開_另1個且導通時 述第-導通時間與所述第二導 :導通時間,所 和所述第二導持時間略小於所述第-導通時間 開關的總導料間接近於但是小於刚%中所歧少兩個導電 二:==Γ項所述的多級輕合電感調節器系 =接第:驅動信號,述第二導; 穩流開關和第二穩流開關:、所:J二:==關包括第-=第所述;二穩流_收:述 所述的第-和紅驅動信號為具有—相位偏移 卢 該相位偏移量等於360声哈w E , J15说 夕里㈣360度除以所述至少兩個導電開關的數量。 拖二5ψ種电壓調即益系統,用於將來自電源的輸入電壓轉 換成輸出W輸出電壓’其特徵在於該㈣H统包括: 第-耦合電感調節器’其由所述輸入電壓產生一中. -降壓變換器,其由所述中間電壓產生所述輪出電摩., 回饋信號,其檢測所述降壓變換器的輸出電壓; 所述降壓變換器,回應該回饋信號而控制所述輸出 以及 ’ 一多回路控制系統,具有來自所述中間電壓至所述降虔變. 32 丄則342 所述多回路控制系統包括-電-,該電 權,以控制所述輸所这中間電壓的回饋和前饋信號加 輪 中所所述的電壓調節器系統,其 出端;,導电開關’用以將能量從所述電源傳送至所述 述至= : = :其與所述至少兩個導電開關相連接,所 電感器所具有的極性使得= -起的,並且每個 消,所,器具有接:::::::::直流電流彼此抵 用以個穩流開關,其與所述至少兩個導電開關相連接, y導通週期為電流提供路徑;以及 :動信號發生器’用以產生驅動信號,每個驅動信發且 <的占空比,所述驅動信號控制所述至少兩個二/、 關。 τ毛開 17·如申請專利範圍第16項所述的電壓調節器系統,其中所述第— 耦合電感調節器是以一種降壓結構設置的,使得所述輪出電壓約等於所 述中間電壓的一半,其中所述降壓結構包括兩個降壓調節器,每個降壓 調節器以約5〇%占空比工作,以及其中所述兩個降壓調節器中的每—個 包括:一導電開關,其與一穩流開關和一電感器相連接,該導電開關在 導通週期將電流從戶斤述電源通過電感器傳送至所述輸出端,而在非導通 週期,所述穩流開關為流過所述電感器的電流提供到所述輸出端的導電 路徑。 18.如申請專剎範圍第17項所述的電壓調節器系統,其中 33 丄342 $步包括第二搞合電感調節器,該第二搞 — 在所述降壓變換器和所述第1合電_^1 所J少二所述的電壓調節器系統,其中 至少兩個導二 :有第一導通時間,而所述 時間斑所❹./ @具有弟-導通時間’所述第-導通 非導通時門間是由非導通時間分隔開的,其中所述 通=的=略小於所述第-導通時間和所述第二導 時門接、斤於間’並且其中所述至少兩個導電開關的總導通 時間接近於但是小於100%。 所如Ψ 專利範圍第16項所述的電壓調節11系統,盆中 3導括第一導電_第二導電開關,二 k矛导知開關接收第一驅動信號,而胼β货_ 第-驅動ϋ甘占3劫輯述第二導電開關接收 弟一㈣n Μ所述至少兩個穩流 和第二穩流開關,所沭笛氆4„HUA 德机開關 所itm: 關接收所述第二驅動信號, 所逑第-開關接收所述第—驅動信號,並且其中所述 -^弟二驅動信號為具有—相位偏移量的相同信號,該相位偏 移里等於360度除以所述至少兩個導電開關的數量。 几一種電壓調節器系統,用於將來自電源的輸入電 換成輸出端的輸出電壓,其特徵在於該調節器系統包括: -降壓變換器’其由所述輸人電愿產生—中間電壓. -第-•合電感調節器’其由所述中間電壓 述 電壓; 和出 電壓; 第回饋域,其檢測所述第一輕合電感調節器的輸出 34 丄: =述降壓變換器,回應該第—回饋信號而控制所述中 進而對所述第,合電感調節器的輪出電壓進行調節;: ^回㈣㈣統’具有來自所述中間電壓至所述降 =:弟二回饋信號’其令所述多回路控制系統包括一電-路’忒电路對來自所述輸出電壓和所述 卜 回饋信號加權,以控制所述輸出電壓。B毛壓的第-及第二 所請專利範圍第Μ項所述的電屋邮器系統,其中 和二:这==包括一電路,該電路在來自所述輸出電壓 牙來自所述中間電壓的所述第—及第 一’以控制所述輸出電壓。 k擇八中之 23.如申請專利範圍第21項所述的 所述多回路控制系統包括用以控制所調即益f統,其中 路和用以控制所述輸出電壓的快速外部回差的慢速内部回 所述5二::2利範圍第21項所述的電壓調節器系統,其中 疔XL弟耦合電感調節器包括· 出端至少兩個導電開關’用以將能量從所述電源傳送至所述輸 述至=感=在其與所述至少兩個導電開一 電感器所:共鐵心上繞製在一起的,並且每個 消:所述電;^呈有各所述電感11中的直流電流彼此抵 电❾盗具有約等於1的耦合係數; 至少兩個穩流開關,其與 用以在非導通週期為電流提供路徑二:個導電開關相連接’ 35 1361342 一驅動信號發生器,用以產生驅動信號,每個驅動信號具 有約50%的占空比,所述驅動信號控制所述至少兩個導電開 關。 25_如申請專利範圍第24項所述的電壓調節器系統,其中 所述第一耦合電感調節器是以一種降壓結構設置的,使得所述 輸出電壓約等於所述中間電壓的一半,其中所述降壓結構包括 兩個降壓調節器,每個降壓調節器以約5〇%占空比工作,以及 其中所述兩個降壓調節器中的每一個包括: 一導電開關,其與一穩流開關和一電感器相連接,並在導通週 期將電流從所述電源通過所述電感器傳送至所述輸出端,而在 非導通週期,所述穩流開關為流過所述電感器的電流提供到所 述輸出端的導電路徑。 一 + 6·如申請專利範圍第25項所述的電壓調節器系統,其進 心=電感調節器’該第二耗合電感調節器連接到 請專利範圍第26項所述的電壓調節器系統,其中 感調節;之:電感:節”聯連接在降壓變換器和第-搞合電 這樣一二 所述㈣… 至少兩個導電開關的另—個且有第導通時間,而所述 時間與所述苐二導通時間是:非= 36 U0U42 非‘通%·間的持續時間略小於所述第 通時間的持續時間,並且其中所述至少兩=間和所述第々 時間接近於但是小於1〇〇%。 7兩個導電開闕的總導通 所丨如巾4專利範圍第Μ項所述的㈣調節器系統,其中 述^一 ^個導電開關包括第一導電開關和第二導電開關,所 第-酿I?關接收第一驅動信號,而所述第二導電開關接收 弟^驅動化號,其令所述至少兩個穩流開關包括第—穩流開關 °第二穩流開關,所述第一穩流開關接收所述第二驅動信號, 所述第二穩流開關接收所述第一驅動信號,並且其中所述的第 和第二驅動信號為具有一相位偏移量的相同信號,該相位偏 移量等於360度除以所述至少兩個導電開關的數量。 37
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