GB643523A - Improvements in or relating to electric harmonic generators - Google Patents

Improvements in or relating to electric harmonic generators

Info

Publication number
GB643523A
GB643523A GB3328747A GB3328747A GB643523A GB 643523 A GB643523 A GB 643523A GB 3328747 A GB3328747 A GB 3328747A GB 3328747 A GB3328747 A GB 3328747A GB 643523 A GB643523 A GB 643523A
Authority
GB
United Kingdom
Prior art keywords
pulses
even harmonic
circuits
fundamental
pulse generator
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
GB3328747A
Inventor
Willem Karel Bakker
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB3328747A priority Critical patent/GB643523A/en
Publication of GB643523A publication Critical patent/GB643523A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/20—Advancing webs by web-penetrating means, e.g. pins

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Ac-Ac Conversion (AREA)

Abstract

643,523. Changing waveform. STANDARD TELEPHONES & CABLES, Ltd. Dec. 17, 1947, No. 33287. [Class 38 (ii)] An electric pulse generator for producing alternate positive and negative pulses when an alternating voltage wave, comprising a fundamental and an even harmonic, is applied to a non-linear inductance has the voltage wave applied to the inductance through a phaseshifting device so that the phase of the even harmonic is shifted relatively to the fundamental in such a manner that the even harmonic has zero amplitude at the instants that the pulses are generated. The phase-shifting de. vice comprises two amplifying valves 13, 14 in push-pull relationship between the input and output transformers 15, 16 respectively. The cathodes have conventional biassing circuits 17, 18 and the grids are connected to earth, i.e. the negative H.T. terminal 21, by a common circuit 19, 20. Two similar resonant circuits 25, 26 are connected between the circuits 17, 18 and the earth terminal 21, one or both of the elements L, C being adjustable, the adjustment being such for each circuit that the output pulses from the pulse generator are equally spaced. Specification 477,875 is referred to.
GB3328747A 1947-12-17 1947-12-17 Improvements in or relating to electric harmonic generators Expired GB643523A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3328747A GB643523A (en) 1947-12-17 1947-12-17 Improvements in or relating to electric harmonic generators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3328747A GB643523A (en) 1947-12-17 1947-12-17 Improvements in or relating to electric harmonic generators

Publications (1)

Publication Number Publication Date
GB643523A true GB643523A (en) 1950-09-20

Family

ID=10350965

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3328747A Expired GB643523A (en) 1947-12-17 1947-12-17 Improvements in or relating to electric harmonic generators

Country Status (1)

Country Link
GB (1) GB643523A (en)

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