GB875714A - Improvements relating to electronic pulse circuits - Google Patents

Improvements relating to electronic pulse circuits

Info

Publication number
GB875714A
GB875714A GB2880458A GB2880458A GB875714A GB 875714 A GB875714 A GB 875714A GB 2880458 A GB2880458 A GB 2880458A GB 2880458 A GB2880458 A GB 2880458A GB 875714 A GB875714 A GB 875714A
Authority
GB
United Kingdom
Prior art keywords
voltage
transistor
rectifier
pulses
input voltage
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
GB2880458A
Inventor
Reginald William Newman
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries Ltd
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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB2880458A priority Critical patent/GB875714A/en
Priority to DES64767A priority patent/DE1086744B/en
Priority to FR804490A priority patent/FR1245601A/en
Publication of GB875714A publication Critical patent/GB875714A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K7/00—Modulating pulses with a continuously-variable modulating signal
    • H03K7/08—Duration or width modulation ; Duty cycle modulation
    • 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/02—Circuits specially adapted for the generation of grid-control or igniter-control voltages for discharge tubes incorporated in static converters
    • H02M1/04—Circuits specially adapted for the generation of grid-control or igniter-control voltages for discharge tubes incorporated in static converters for tubes with grid control
    • H02M1/042—Circuits specially adapted for the generation of grid-control or igniter-control voltages for discharge tubes incorporated in static converters for tubes with grid control wherein the phase of the control voltage is adjustable with reference to the AC voltage
    • 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
    • H02M1/081—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters wherein the phase of the control voltage is adjustable with reference to the AC source

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Rectifiers (AREA)
  • Electronic Switches (AREA)

Abstract

875,714. Converting. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 28, 1959 [Sept. 8, 1958], No. 28804/58. Class 38 (2). [Also in Group XL (c)] A circuit for producing pulses at the control electrode of a thyratron or a three-electrode semi-conductor rectifier, having a controllable phase relative to the A.C. input voltage of the rectifier comprises a transistor X1 having applied between its base and the collector supply terminal an A.C. voltage 90 degrees out of phase with the rectifier input voltage. A control voltage V1 is applied to the base of a transistor X2 and by varying this voltage the conduction angle of the transistor for the A.C. voltage V2 is varied so that current pulses flow in the collector of transistor X1 having variable marked space ratio. These pulses are differentiated by a transformer T1 to provide short pulses having a phase relative to the rectifier input voltage which depends upon the value of the control voltage V1.
GB2880458A 1958-09-08 1958-09-08 Improvements relating to electronic pulse circuits Expired GB875714A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB2880458A GB875714A (en) 1958-09-08 1958-09-08 Improvements relating to electronic pulse circuits
DES64767A DE1086744B (en) 1958-09-08 1959-09-04 Circuit arrangement for generating pulses of variable width and constant frequency
FR804490A FR1245601A (en) 1958-09-08 1959-09-07 Electronic circuit assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2880458A GB875714A (en) 1958-09-08 1958-09-08 Improvements relating to electronic pulse circuits

Publications (1)

Publication Number Publication Date
GB875714A true GB875714A (en) 1961-08-23

Family

ID=10281448

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2880458A Expired GB875714A (en) 1958-09-08 1958-09-08 Improvements relating to electronic pulse circuits

Country Status (3)

Country Link
DE (1) DE1086744B (en)
FR (1) FR1245601A (en)
GB (1) GB875714A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2587515B1 (en) * 1985-09-17 1989-09-08 Esswein Sa DEVICE FOR ENTERING DATA IN A MICRO-PROCESSOR

Also Published As

Publication number Publication date
FR1245601A (en) 1960-11-10
DE1086744B (en) 1960-08-11

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