JP4440121B2 - 電圧供給回路およびマイクユニット - Google Patents

電圧供給回路およびマイクユニット Download PDF

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Publication number
JP4440121B2
JP4440121B2 JP2005001381A JP2005001381A JP4440121B2 JP 4440121 B2 JP4440121 B2 JP 4440121B2 JP 2005001381 A JP2005001381 A JP 2005001381A JP 2005001381 A JP2005001381 A JP 2005001381A JP 4440121 B2 JP4440121 B2 JP 4440121B2
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JP
Japan
Prior art keywords
voltage
circuit
booster circuit
output
stage
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.)
Expired - Fee Related
Application number
JP2005001381A
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English (en)
Japanese (ja)
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JP2006191360A (ja
JP2006191360A5 (enExample
Inventor
史幸 丹羽
雅之 井田
博茂 木下
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NEC Electronics Corp
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NEC Electronics Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Electronics Corp filed Critical NEC Electronics Corp
Priority to JP2005001381A priority Critical patent/JP4440121B2/ja
Priority to US11/325,346 priority patent/US7864970B2/en
Priority to CN2006100057486A priority patent/CN1801590B/zh
Priority to KR1020060001626A priority patent/KR100760877B1/ko
Publication of JP2006191360A publication Critical patent/JP2006191360A/ja
Publication of JP2006191360A5 publication Critical patent/JP2006191360A5/ja
Application granted granted Critical
Publication of JP4440121B2 publication Critical patent/JP4440121B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D11/00—Suspension or cable-stayed bridges
    • E01D11/02—Suspension bridges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
    • E01D19/103—Parapets, railings ; Guard barriers or road-bridges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
    • 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
    • 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
    • H03F1/0261—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 polarisation voltage or current, e.g. gliding Class A

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Multimedia (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Amplifiers (AREA)
  • Continuous-Control Power Sources That Use Transistors (AREA)
JP2005001381A 2005-01-06 2005-01-06 電圧供給回路およびマイクユニット Expired - Fee Related JP4440121B2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2005001381A JP4440121B2 (ja) 2005-01-06 2005-01-06 電圧供給回路およびマイクユニット
US11/325,346 US7864970B2 (en) 2005-01-06 2006-01-05 Voltage supply circuit and microphone unit
CN2006100057486A CN1801590B (zh) 2005-01-06 2006-01-06 电压供应电路和扩音器单元
KR1020060001626A KR100760877B1 (ko) 2005-01-06 2006-01-06 전압 공급 회로 및 마이크로폰 유닛

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005001381A JP4440121B2 (ja) 2005-01-06 2005-01-06 電圧供給回路およびマイクユニット

Publications (3)

Publication Number Publication Date
JP2006191360A JP2006191360A (ja) 2006-07-20
JP2006191360A5 JP2006191360A5 (enExample) 2006-12-14
JP4440121B2 true JP4440121B2 (ja) 2010-03-24

Family

ID=36640476

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005001381A Expired - Fee Related JP4440121B2 (ja) 2005-01-06 2005-01-06 電圧供給回路およびマイクユニット

Country Status (4)

Country Link
US (1) US7864970B2 (enExample)
JP (1) JP4440121B2 (enExample)
KR (1) KR100760877B1 (enExample)
CN (1) CN1801590B (enExample)

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US8233643B1 (en) * 2010-03-23 2012-07-31 Fiberplex Technologies, LLC System and method for amplifying low level signals provided on electrical supply power
US9099961B2 (en) 2010-04-19 2015-08-04 Rf Micro Devices, Inc. Output impedance compensation of a pseudo-envelope follower power management system
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Also Published As

Publication number Publication date
US7864970B2 (en) 2011-01-04
JP2006191360A (ja) 2006-07-20
US20060147062A1 (en) 2006-07-06
CN1801590B (zh) 2010-10-13
KR100760877B1 (ko) 2007-09-21
CN1801590A (zh) 2006-07-12
KR20060080892A (ko) 2006-07-11

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