ES461490A1 - Aparato para la conversion digital directa de una tension decorriente continua. - Google Patents

Aparato para la conversion digital directa de una tension decorriente continua.

Info

Publication number
ES461490A1
ES461490A1 ES461490A ES461490A ES461490A1 ES 461490 A1 ES461490 A1 ES 461490A1 ES 461490 A ES461490 A ES 461490A ES 461490 A ES461490 A ES 461490A ES 461490 A1 ES461490 A1 ES 461490A1
Authority
ES
Spain
Prior art keywords
waveform
alternating current
fixed memory
counter
counter device
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
ES461490A
Other languages
English (en)
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.)
Westinghouse Electric Corp
Original Assignee
Westinghouse Electric 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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of ES461490A1 publication Critical patent/ES461490A1/es
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS 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
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
    • H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
    • H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/505—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M7/515—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H02M7/525—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output waveform or frequency
    • H02M7/527—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output waveform or frequency by pulse width modulation
    • H02M7/529—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output waveform or frequency by pulse width modulation using digital control
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/02—Digital function generators
    • G06F1/03—Digital function generators working, at least partly, by table look-up
    • G06F1/0321—Waveform generators, i.e. devices for generating periodical functions of time, e.g. direct digital synthesizers
    • G06F1/0342—Waveform generators, i.e. devices for generating periodical functions of time, e.g. direct digital synthesizers for generating simultaneously two or more related waveforms, e.g. with different phase angles only

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

Aparato para la conversión digital directa de una tensión de corriente continua en una forma de onda de salida de corriente alterna sin utilizar una forma de onda de referencia de corriente alterna, que incluye un dispositivo generador de impulsos para producir impulsos de ritmo, un dispositivo contador conectado con dicho dispositivo generador de impulsos, caracterizado porque incluye un dispositivo de memoria fija programable conectado a dicho dispositivo contador desarrollando señales lógicas de control que corresponden a combinaciones de UNOS y CEROS lógicos en una secuencia de perfiles indicativa de una forma de onda de corriente alterna pre-programada, cada cambio incremental del valor de la cuenta de dicho dispositivo contador, produce una salida digital diferente a dicho dispositivo contador que direcciona una palabra diferente, almacenada en dicho dispositivo de memoria fija programable, produciendo cada una de las palabras almacenadas un par predeterminado de señales lógicas de control, un dispositivo de circuito lógico que conecta activamente dicha memoria fija programable con una etapa de suministro de energía de tensión de corriente continua que consiste en una multiplicidad de aparatos de conmutación de energía, respondiendo dicho dispositivo de circuito lógico a dichas señales lógicas de control, controlando la conducción de dichos aparatos de conmutación de potencia para producir una salida modulada en anchura de impulsos a partir de dicha etapa de potencia de tensión de corriente alterna que corresponde a dicha forma de onda de corriente alterna pre-programada.
ES461490A 1976-08-10 1977-08-09 Aparato para la conversion digital directa de una tension decorriente continua. Expired ES461490A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/713,177 US4105939A (en) 1976-08-10 1976-08-10 Direct digital technique for generating an AC waveform

Publications (1)

Publication Number Publication Date
ES461490A1 true ES461490A1 (es) 1978-12-01

Family

ID=24865098

Family Applications (1)

Application Number Title Priority Date Filing Date
ES461490A Expired ES461490A1 (es) 1976-08-10 1977-08-09 Aparato para la conversion digital directa de una tension decorriente continua.

Country Status (5)

Country Link
US (1) US4105939A (es)
JP (2) JPS5348449A (es)
CA (1) CA1095983A (es)
ES (1) ES461490A1 (es)
GB (1) GB1543479A (es)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4195336A (en) * 1978-05-17 1980-03-25 Vsesojuzny Nauchno-Issledovatelsky Institut Vagonostroenia Digital control device for multiphase thyristor-pulse d.c. converter
DE2842278A1 (de) * 1978-09-28 1980-04-03 Siemens Ag Steuersatz fuer einen stromrichter
US4245290A (en) * 1978-12-18 1981-01-13 United Technologies Corporation Sliding notch pulse width modulation (PWM)
US4383245A (en) * 1980-10-31 1983-05-10 Sperry Corporation Digital servomotor drive apparatus
JPS5836176A (ja) * 1981-08-26 1983-03-03 Mayekawa Mfg Co Ltd トランジスタインバ−タ装置
ES8404580A1 (es) * 1982-05-07 1984-05-01 Babcock & Wilcox Co Dispositivo para generar formas de onda trifasicas de impulsos modulados en anchura para controlar motores de induccion.
US4584658A (en) * 1983-06-14 1986-04-22 Westinghouse Electric Corp. Stable sine wave generator
US4754466A (en) * 1986-05-22 1988-06-28 Chrysler Motors Corporation Method for chip selection and counting in a digital pulse width modulated integrated circuit
US4742441A (en) * 1986-11-21 1988-05-03 Heart Interface Corporation High frequency switching power converter
US4819597A (en) * 1988-04-05 1989-04-11 Eaton Corporation Clocked current torque motor control
JP2637564B2 (ja) * 1989-08-03 1997-08-06 三菱電機株式会社 モータコントローラ回路内蔵マイクロコンピュータ
US5055992A (en) * 1990-01-29 1991-10-08 Sundstrand Corporation Control for full-bridge inverter
US5414615A (en) * 1990-11-27 1995-05-09 General Electric Company Pattern generation control for inverter drives
US5168439A (en) * 1990-11-27 1992-12-01 General Electric Company Inverter control method and apparatus
JP2885256B2 (ja) * 1991-12-25 1999-04-19 日本電気株式会社 マイクロコンピュータ
US5400237A (en) * 1992-05-11 1995-03-21 Simmonds Precision Products, Inc. PWM inverter controller with waveform memory
JPH07134191A (ja) * 1993-11-12 1995-05-23 Toshiba Corp 制御棒駆動機構の駆動装置
JPH10173738A (ja) * 1996-12-13 1998-06-26 Fujitsu Ltd 信号発生装置及びこれを具備する電子装置
MXPA01011657A (es) * 1999-05-28 2004-09-27 Peco Ii Inc Oscilador digital controlado por voltaje..
US6396317B1 (en) 1999-05-28 2002-05-28 Peco Ii, Inc., Digital voltage controlled oscillator

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA896086A (en) * 1969-05-19 1972-03-21 Kernick Andress Programmed waveform static inverter for digitally generating a-c waveforms comprised of a pattern of equal width voltage pulses
US3624486A (en) * 1970-03-06 1971-11-30 Westinghouse Electric Corp Apparatus for controlling pulse width modulation of inverter circuits
US3649902A (en) * 1970-06-15 1972-03-14 Gen Electric Dc to ac inverter for producing a sine-wave output by pulse width modulation
US3766497A (en) * 1972-01-21 1973-10-16 Power Control Corp Method and apparatus for pulse width modulation with variable frequency modes
JPS4995147A (es) * 1973-01-18 1974-09-10
JPS50130988A (es) * 1974-04-05 1975-10-16
US4028609A (en) * 1975-12-22 1977-06-07 Westinghouse Electric Corporation Digital firing pulse generator with pulse suppression

Also Published As

Publication number Publication date
US4105939A (en) 1978-08-08
JPS5348449A (en) 1978-05-01
CA1095983A (en) 1981-02-17
GB1543479A (en) 1979-04-04
JPS5985091U (ja) 1984-06-08

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