IT1274963B - Metodo ed apparecchio per controllare il fattore di utilizzazione di un oscillatore - Google Patents

Metodo ed apparecchio per controllare il fattore di utilizzazione di un oscillatore

Info

Publication number
IT1274963B
IT1274963B ITRM940669A ITRM940669A IT1274963B IT 1274963 B IT1274963 B IT 1274963B IT RM940669 A ITRM940669 A IT RM940669A IT RM940669 A ITRM940669 A IT RM940669A IT 1274963 B IT1274963 B IT 1274963B
Authority
IT
Italy
Prior art keywords
oscillator
control
use factor
factor
Prior art date
Application number
ITRM940669A
Other languages
English (en)
Inventor
Rajeev Badyal
Original Assignee
Hewlett Packard Co
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 Hewlett Packard Co filed Critical Hewlett Packard Co
Publication of ITRM940669A0 publication Critical patent/ITRM940669A0/it
Publication of ITRM940669A1 publication Critical patent/ITRM940669A1/it
Application granted granted Critical
Publication of IT1274963B publication Critical patent/IT1274963B/it

Links

Classifications

    • 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
    • H03K3/027—Generators characterised by the type of circuit or by the means used for producing pulses by the use of logic circuits, with internal or external positive feedback
    • H03K3/03—Astable circuits
    • H03K3/0315—Ring oscillators
    • 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
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H03B5/36—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device
    • H03B5/366—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device and comprising means for varying the frequency by a variable voltage or current
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/01—Details
    • H03K3/017—Adjustment of width or dutycycle of pulses
ITRM940669A 1993-10-15 1994-10-14 Metodo ed apparecchio per controllare il fattore di utilizzazione di un oscillatore IT1274963B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/138,276 US5481228A (en) 1993-10-15 1993-10-15 Method and apparatus for controlling oscillator duty cycle

Publications (3)

Publication Number Publication Date
ITRM940669A0 ITRM940669A0 (it) 1994-10-14
ITRM940669A1 ITRM940669A1 (it) 1996-04-14
IT1274963B true IT1274963B (it) 1997-07-29

Family

ID=22481293

Family Applications (1)

Application Number Title Priority Date Filing Date
ITRM940669A IT1274963B (it) 1993-10-15 1994-10-14 Metodo ed apparecchio per controllare il fattore di utilizzazione di un oscillatore

Country Status (4)

Country Link
US (1) US5481228A (it)
JP (1) JPH07176995A (it)
FR (1) FR2711285B1 (it)
IT (1) IT1274963B (it)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5856753A (en) * 1996-03-29 1999-01-05 Cypress Semiconductor Corp. Output circuit for 3V/5V clock chip duty cycle adjustments
US6154076A (en) * 1997-09-19 2000-11-28 Texas Instruments Incorporated Phase alignment circuit for periodic signals
US6148048A (en) * 1997-09-26 2000-11-14 Cirrus Logic, Inc. Receive path implementation for an intermediate frequency transceiver
JP3745517B2 (ja) 1997-10-20 2006-02-15 富士通株式会社 タイミング回路
JP3408408B2 (ja) * 1997-10-24 2003-05-19 エヌイーシーマイクロシステム株式会社 Ｃｒ発振回路
US6028491A (en) * 1998-04-29 2000-02-22 Atmel Corporation Crystal oscillator with controlled duty cycle
US6121849A (en) * 1998-07-24 2000-09-19 Motorola Inc. Oscillator amplifier with frequency based digital multi-discrete-level gain control and method of operation
US6040726A (en) * 1998-09-14 2000-03-21 Lucent Technologies Inc. Digital duty cycle correction loop apparatus and method
US6518809B1 (en) 2001-08-01 2003-02-11 Cypress Semiconductor Corp. Clock circuit with self correcting duty cycle
US6943556B2 (en) * 2003-06-30 2005-09-13 Intel Corporation High-speed duty cycle test through DC measurement using a combination of relays
US7518424B2 (en) * 2004-11-08 2009-04-14 Elite Semiconductor Memory Technology Inc. Slew rate controlled output circuit
JP2009506612A (ja) * 2005-08-24 2009-02-12 エヌエックスピー ビー ヴィ 集積化スイッチモード電源に好適な高い周波数安定性の集積化ｒｃ発振器
DE102006011448B4 (de) * 2006-03-13 2013-08-01 Austriamicrosystems Ag Schaltungsanordnung und Verfahren zum Bereitstellen eines Taktsignals mit einem einstellbaren Tastverhältnis
JP4796437B2 (ja) * 2006-05-16 2011-10-19 Ｏｋｉセミコンダクタ株式会社 発振回路
JP4523653B2 (ja) * 2008-03-14 2010-08-11 富士通株式会社 インパルス無線送信装置
US9455703B2 (en) * 2013-11-15 2016-09-27 Eaglepicher Technologies, Llc FET array bypass module
KR102591122B1 (ko) * 2016-10-13 2023-10-19 에스케이하이닉스 주식회사 낮은 전력 소모를 갖는 수정 발진기 회로
US10432201B2 (en) * 2017-09-05 2019-10-01 Arm Limited Low power one-pin crystal oscillator with fast start-up

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3979693A (en) * 1975-08-29 1976-09-07 Bell Telephone Laboratories, Incorporated Crystal-controlled oscillator having sinusoidal and square-wave output signals
US4095165A (en) * 1976-10-18 1978-06-13 Bell Telephone Laboratories, Incorporated Switching regulator control utilizing digital comparison techniques to pulse width modulate conduction through a switching device
US4065728A (en) * 1976-12-13 1977-12-27 Bell Telephone Laboratories Crystal oscillator including a pair of push-pull complementary transistor amplifiers
JPS5445558A (en) * 1977-09-17 1979-04-10 Citizen Watch Co Ltd Frequency adjusting set for oscillator
US4152675A (en) * 1978-04-03 1979-05-01 Motorola, Inc. Crystal oscillator with adjustable duty cycle
US4292604A (en) * 1979-08-20 1981-09-29 Bell Telephone Laboratories, Incorporated Relaxation oscillator with plural constant current sources
US4383224A (en) * 1981-01-21 1983-05-10 Bell Telephone Laboratories, Incorporated NMOS Crystal oscillator
US4491691A (en) * 1983-02-28 1985-01-01 At&T Bell Laboratories Electronic tone ringer
US4567333A (en) * 1983-02-28 1986-01-28 At&T Technologies Electronic tone ringer with distinctive signaling circuitry
JPS59168704A (ja) * 1983-03-14 1984-09-22 Nec Corp 半導体集積回路
JPH0194704A (ja) * 1987-10-07 1989-04-13 Seiko Epson Corp 発振回路
US4887053A (en) * 1987-11-27 1989-12-12 American Telephone And Telegraph Company High frequency VLSI oscillator
US4853655A (en) * 1987-11-27 1989-08-01 American Telephone And Telegraph Company, At&T Bell Laboratories High frequency CMOS oscillator
US4802080A (en) * 1988-03-18 1989-01-31 American Telephone And Telegraph Company, At&T Information Systems Power transfer circuit including a sympathetic resonator
US4831343A (en) * 1988-03-24 1989-05-16 Motorola, Inc. Crystal clock generator having fifty percent duty cycle
US4903181A (en) * 1989-05-16 1990-02-20 American Telephone And Telegraph Company, At&T Bell Laboratories Power converter having parallel power switching systems coupled by an impedance inversion network
US4959557A (en) * 1989-05-18 1990-09-25 Compaq Computer Corporation Negative feedback circuit to control the duty cycle of a logic system clock
US5136264A (en) * 1990-12-05 1992-08-04 At&T Bell Laboratories Transmitter including an fsk modulator having a switched capacitor
KR930702819A (ko) * 1991-09-04 1993-09-09 아이자와 스스무 발진장치
US5142251A (en) * 1991-10-03 1992-08-25 National Semiconductor Corporation Wide band selectable gain and operating frequency CMOS oscillator circuit
EP0574981B1 (en) * 1992-06-15 1998-09-02 Koninklijke Philips Electronics N.V. Oscillator circuit having 50% duty cycle

Also Published As

Publication number Publication date
FR2711285A1 (fr) 1995-04-21
US5481228A (en) 1996-01-02
ITRM940669A0 (it) 1994-10-14
FR2711285B1 (fr) 1997-04-18
ITRM940669A1 (it) 1996-04-14
JPH07176995A (ja) 1995-07-14

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19971029