GB1405445A - Transistor circuits - Google Patents

Transistor circuits

Info

Publication number
GB1405445A
GB1405445A GB4402272A GB4402272A GB1405445A GB 1405445 A GB1405445 A GB 1405445A GB 4402272 A GB4402272 A GB 4402272A GB 4402272 A GB4402272 A GB 4402272A GB 1405445 A GB1405445 A GB 1405445A
Authority
GB
United Kingdom
Prior art keywords
transistor
transistors
capacitor
voltage
series transistor
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
Application number
GB4402272A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony 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
Priority claimed from JP46074840A external-priority patent/JPS4841243A/ja
Priority claimed from JP46074841A external-priority patent/JPS4840355A/ja
Application filed by Sony Corp filed Critical Sony Corp
Publication of GB1405445A publication Critical patent/GB1405445A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
    • H03F3/3083—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the power transistors being of the same type
    • H03F3/3086—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the power transistors being of the same type two power transistors being controlled by the input signal
    • H03F3/3091—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the power transistors being of the same type two power transistors being controlled by the input signal comprising two complementary transistors for phase-splitting
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • G05F1/468—Regulating voltage or current wherein the variable actually regulated by the final control device is dc characterised by reference voltage circuitry, e.g. soft start, remote shutdown
    • 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
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • H03F1/305—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in case of switching on or off of a power supply

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Amplifiers (AREA)

Abstract

1405445 Automatic voltage regulation SONY CORP 22 Sept 1972 [25 Sept 1971 (2)] 44022/72 Heading G3X [Also in Divisions H2 and H3] A D.C. power supply circuit comprises a series transistor controlled by a further transistor, the base of which is connected to the junction of a capacitor and a discharge device across a D.C. source. As shown in Fig. 6, a series transistor 14 produces a regulated voltage output under steady state conditions under the control of Zener diode 20. When a smoothed D.C. input is first switched on across input terminals 6a, 6b, Darlington connected transistors 21, 22 conduct until capacitor 9 is fully charged. These transistors then turn off, allowing base current to flow to series transistor 14. The output voltage thus rises slowly until the steady state is reached, the rate of voltage rise depending on the capacitor 9, the resistor 12, and the current amplification of the transistors 21, 22. When the source is disconnected, capacitor 9 discharges rapidly through diode 8 and an external load circuit. The arrangement is designed for supplying an amplifier in a radio receiver, and the slow initial voltage increase together with rapid voltage fall at switch-off prevents amplification of switching noise. In other embodiments, a single transistor may replace the Darlington pair 21, 22, or a pair of transistors may be used in place of series transistor 14. Also, two Zener diodes may be connected to the base of transistor 14 and a further Zener diode may be connected in the output line to introduce a time delay after switch-on, Fig. 8 (not shown). The circuit may be used to convert a squarewave input to a ramp waveform, Figs. 4A-4B (not shown). An audio amplifier is also described, Fig. 10 (not shown).
GB4402272A 1971-09-25 1972-09-22 Transistor circuits Expired GB1405445A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP46074840A JPS4841243A (en) 1971-09-25 1971-09-25
JP46074841A JPS4840355A (en) 1971-09-25 1971-09-25

Publications (1)

Publication Number Publication Date
GB1405445A true GB1405445A (en) 1975-09-10

Family

ID=26416018

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4402272A Expired GB1405445A (en) 1971-09-25 1972-09-22 Transistor circuits

Country Status (3)

Country Link
US (1) US3832627A (en)
CA (1) CA982656A (en)
GB (1) GB1405445A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2238192A (en) * 1989-11-13 1991-05-22 Richard John Walters An electronic switch arrangement
CN113785255A (en) * 2019-05-15 2021-12-10 株式会社自动网络技术研究所 Voltage regulator and on-vehicle standby power supply

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5442447U (en) * 1977-08-29 1979-03-22
GB8503339D0 (en) * 1985-02-08 1985-03-13 Davy P G Electronic control equipment
JP2585249B2 (en) * 1987-03-06 1997-02-26 株式会社東芝 Shock noise prevention circuit for audio amplifier.
US4829230A (en) * 1987-12-18 1989-05-09 Miles Inc. Motor control circuit for accurate speed control with capacitor leakage compensation
EP0325147B1 (en) * 1988-01-18 1992-09-02 Siemens Aktiengesellschaft Circuit arrangement for a voltage-controlled constant voltage source with an input side rc network
US4937470A (en) * 1988-05-23 1990-06-26 Zeiler Kenneth T Driver circuit for power transistors
US5243232A (en) * 1991-07-31 1993-09-07 Allen-Bradley Company, Inc. Start-up pulse suppression circuit for industrial controller output
KR940007852A (en) * 1992-09-16 1994-04-28 윤종용 Digital Noise Reduction Circuit of CD-ROM System
US5436588A (en) * 1993-12-17 1995-07-25 National Semiconductor Corp. Click/pop free bias circuit
US20130208380A1 (en) * 2012-02-10 2013-08-15 Transtector Systems, Inc. Transient control technology circuit
WO2013120101A1 (en) 2012-02-10 2013-08-15 Transtector Systems, Inc. Reduced let through voltage transient protection or suppression circuit
US9048662B2 (en) 2012-03-19 2015-06-02 Transtector Systems, Inc. DC power surge protector
US9190837B2 (en) 2012-05-03 2015-11-17 Transtector Systems, Inc. Rigid flex electromagnetic pulse protection device
US9124093B2 (en) 2012-09-21 2015-09-01 Transtector Systems, Inc. Rail surge voltage protector with fail disconnect
US10129993B2 (en) 2015-06-09 2018-11-13 Transtector Systems, Inc. Sealed enclosure for protecting electronics
US10356928B2 (en) 2015-07-24 2019-07-16 Transtector Systems, Inc. Modular protection cabinet with flexible backplane
US9924609B2 (en) 2015-07-24 2018-03-20 Transtector Systems, Inc. Modular protection cabinet with flexible backplane
US10588236B2 (en) 2015-07-24 2020-03-10 Transtector Systems, Inc. Modular protection cabinet with flexible backplane
WO2017075286A1 (en) 2015-10-27 2017-05-04 Transtector Systems, Inc. Radio frequency surge protector with matched piston-cylinder cavity shape
US9991697B1 (en) 2016-12-06 2018-06-05 Transtector Systems, Inc. Fail open or fail short surge protector

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2995697A (en) * 1957-02-18 1961-08-08 Bell Telephone Labor Inc Transistor filter
US3099790A (en) * 1958-03-31 1963-07-30 Rca Corp Voltage regulators
US3026469A (en) * 1959-11-13 1962-03-20 Avco Corp Voltage regulator and overload protection system
US3189751A (en) * 1960-04-01 1965-06-15 Cons Electronics Ind Timing circuit
FR149642A (en) * 1965-10-12

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2238192A (en) * 1989-11-13 1991-05-22 Richard John Walters An electronic switch arrangement
GB2238192B (en) * 1989-11-13 1994-03-30 Richard John Walters An electronic switch arrangement
CN113785255A (en) * 2019-05-15 2021-12-10 株式会社自动网络技术研究所 Voltage regulator and on-vehicle standby power supply

Also Published As

Publication number Publication date
US3832627A (en) 1974-08-27
CA982656A (en) 1976-01-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years