CA2052248A1 - Circuit a courant constant et circuit oscillant controle parce dernier - Google Patents

Circuit a courant constant et circuit oscillant controle parce dernier

Info

Publication number
CA2052248A1
CA2052248A1 CA2052248A CA2052248A CA2052248A1 CA 2052248 A1 CA2052248 A1 CA 2052248A1 CA 2052248 A CA2052248 A CA 2052248A CA 2052248 A CA2052248 A CA 2052248A CA 2052248 A1 CA2052248 A1 CA 2052248A1
Authority
CA
Canada
Prior art keywords
constant current
vcc
current circuit
voltage
oscillating circuit
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.)
Granted
Application number
CA2052248A
Other languages
English (en)
Other versions
CA2052248C (fr
Inventor
Makoto Suwada
Shuichi Inoue
Yuzo Usui
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.)
Fujitsu Ltd
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2052248A1 publication Critical patent/CA2052248A1/fr
Application granted granted Critical
Publication of CA2052248C publication Critical patent/CA2052248C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
    • G05F3/02—Regulating voltage or current
    • G05F3/08—Regulating voltage or current wherein the variable is DC
    • G05F3/10—Regulating voltage or current wherein the variable is DC using uncontrolled devices with non-linear characteristics
    • G05F3/16—Regulating voltage or current wherein the variable is DC using uncontrolled devices with non-linear characteristics being semiconductor devices
    • G05F3/20—Regulating voltage or current wherein the variable is DC using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations
    • G05F3/26—Current mirrors
    • G05F3/265—Current mirrors using bipolar transistors only
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
    • G05F3/02—Regulating voltage or current
    • G05F3/08—Regulating voltage or current wherein the variable is DC
    • G05F3/10—Regulating voltage or current wherein the variable is DC using uncontrolled devices with non-linear characteristics
    • G05F3/16—Regulating voltage or current wherein the variable is DC using uncontrolled devices with non-linear characteristics being semiconductor devices
    • G05F3/20—Regulating voltage or current wherein the variable is DC using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations
    • G05F3/22—Regulating voltage or current wherein the variable is DC using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the bipolar type only
    • G05F3/222—Regulating voltage or current wherein the variable is DC using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the bipolar type only with compensation for device parameters, e.g. Early effect, gain, manufacturing process, or external variations, e.g. temperature, loading, supply voltage
    • G05F3/227—Regulating voltage or current wherein the variable is DC using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the bipolar type only with compensation for device parameters, e.g. Early effect, gain, manufacturing process, or external variations, e.g. temperature, loading, supply voltage producing a current or voltage as a predetermined function of the supply voltage
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/023—Generators characterised by the type of circuit or by the means used for producing pulses by the use of differential amplifiers or comparators, with internal or external positive feedback
    • H03K3/0231—Astable circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/48—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices
    • H03K4/50—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth voltage is produced across a capacitor
    • H03K4/501—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth voltage is produced across a capacitor the starting point of the flyback period being determined by the amplitude of the voltage across the capacitor, e.g. by a comparator
    • H03K4/502—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth voltage is produced across a capacitor the starting point of the flyback period being determined by the amplitude of the voltage across the capacitor, e.g. by a comparator the capacitor being charged from a constant-current source

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Nonlinear Science (AREA)
  • Dc-Dc Converters (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Electronic Switches (AREA)
  • Control Of Electrical Variables (AREA)
  • Continuous-Control Power Sources That Use Transistors (AREA)
  • Amplifiers (AREA)
  • Networks Using Active Elements (AREA)
CA002052248A 1990-09-26 1991-09-25 Circuit a courant constant et circuit oscillant controle parce dernier Expired - Fee Related CA2052248C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2256294A JP2763393B2 (ja) 1990-09-26 1990-09-26 定電流回路および発振回路
JP2-256294 1990-09-26

Publications (2)

Publication Number Publication Date
CA2052248A1 true CA2052248A1 (fr) 1992-03-27
CA2052248C CA2052248C (fr) 1994-07-26

Family

ID=17290663

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002052248A Expired - Fee Related CA2052248C (fr) 1990-09-26 1991-09-25 Circuit a courant constant et circuit oscillant controle parce dernier

Country Status (6)

Country Link
US (1) US5146188A (fr)
EP (2) EP0664502A3 (fr)
JP (1) JP2763393B2 (fr)
KR (1) KR950005155B1 (fr)
CA (1) CA2052248C (fr)
DE (1) DE69118798T2 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0689731A1 (fr) * 1993-03-17 1996-01-03 National Semiconductor Corporation Circuit de glissemant de fréquence pour régulateur à découpage
US5349286A (en) * 1993-06-18 1994-09-20 Texas Instruments Incorporated Compensation for low gain bipolar transistors in voltage and current reference circuits
US5619125A (en) * 1995-07-31 1997-04-08 Lucent Technologies Inc. Voltage-to-current converter
US6441693B1 (en) * 2001-03-20 2002-08-27 Honeywell International Inc. Circuit for voltage to linear duty cycle conversion
DE10121821B4 (de) * 2001-05-04 2004-04-08 Infineon Technologies Ag Frequenzregelschaltung
DE10259384B3 (de) * 2002-12-18 2004-05-13 Siemens Ag Vorrichtung zur Ermittlung des Energiezustandes eines Energiespeichers eines mobilen Datenträgers
JP5762755B2 (ja) * 2010-01-18 2015-08-12 ローム株式会社 発光素子の駆動回路およびそれを用いた発光装置
JP6576306B2 (ja) 2016-06-28 2019-09-18 三菱電機株式会社 電圧電流変換回路および負荷駆動回路
CN109002076B (zh) * 2017-06-07 2021-10-29 苏州瀚宸科技有限公司 电阻电流镜像电路、rssi电路及芯片

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3870971A (en) * 1973-03-17 1975-03-11 Victor Company Of Japan Circuit arrangement of voltage controlled oscillator
US3831113A (en) * 1973-06-01 1974-08-20 Rca Corp Relaxation oscillator
DE2912492A1 (de) * 1979-03-29 1980-10-09 Siemens Ag Monolithisch integrierbarer rechteckimpulsgenerator
US4471326A (en) * 1981-04-30 1984-09-11 Rca Corporation Current supplying circuit as for an oscillator
NL8302215A (nl) * 1983-06-22 1985-01-16 Philips Nv Stroombronschakeling.
JPS60263507A (ja) * 1984-06-11 1985-12-27 Nec Corp 発振回路
JPH0659024B2 (ja) * 1985-12-23 1994-08-03 日本電気株式会社 時定数回路
US4667146A (en) * 1986-10-10 1987-05-19 Tektronix, Inc. Voltage-controlled push-pull current source

Also Published As

Publication number Publication date
DE69118798D1 (de) 1996-05-23
EP0664502A2 (fr) 1995-07-26
JP2763393B2 (ja) 1998-06-11
EP0664502A3 (fr) 1997-08-06
JPH04133113A (ja) 1992-05-07
DE69118798T2 (de) 1996-09-05
EP0477907B1 (fr) 1996-04-17
EP0477907A3 (en) 1993-06-30
KR920007320A (ko) 1992-04-28
US5146188A (en) 1992-09-08
KR950005155B1 (ko) 1995-05-19
EP0477907A2 (fr) 1992-04-01
CA2052248C (fr) 1994-07-26

Similar Documents

Publication Publication Date Title
HK36197A (en) Source voltage control circuit
KR920020820A (ko) 참조 전류 발생 회로
EP0401013A3 (fr) Amplificateur à haute fréquence à optimisation de la consommation de la puissance
KR910007391A (ko) 레벨 시프트 제어 기능을 가지는 방전 램프 점등장치
DE59704753D1 (de) Temperaturstabilisierter Oszillator und Verwendung desselben in einem Näherungsschalter
CA2079017A1 (fr) Circuit a amplificateur differentiel
KR940017111A (ko) 전력 증폭 장치
KR920022680A (ko) 저전력 수정 발진기 시스템
KR910017889A (ko) 소자 회로
JPS5545264A (en) Switch circuit
EP0371489A3 (fr) Circuit oscillateur pour commutateur de proximité
ATE270469T1 (de) Begrenzungsschaltung für einen analogen verstärker
EP0377537A3 (fr) Circuit pour fournir une commande rapide de courant de sortie dans une alimentation de puissance à découpage en mode courant
EP0359210A3 (fr) Onduleur à large plage de contrôle de la grandeur de sortie
KR100254441B1 (ko) 솔레노이드 밸브 구동장치
KR900007012Y1 (ko) Rc 발진기
GB1519092A (en) Voltage controlled oscillator circuit
SU476671A1 (ru) Генератор пилообразного напр жени
JPS6443063A (en) Switching drive circuit
JPS60241319A (ja) 電圧制御発振器
FR2440645A1 (fr) Generateur de puissance haute-frequence a auto-oscillateur aperiodique
JPS54117663A (en) Amplifier
JPS5668010A (en) Power amplifier
EP0420343A3 (en) Electronic control circuit for audio-signal level
JPS5672509A (en) Dc gain control device

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed