GB1103448A - Multi-phase switching circuit - Google Patents

Multi-phase switching circuit

Info

Publication number
GB1103448A
GB1103448A GB799765A GB799765A GB1103448A GB 1103448 A GB1103448 A GB 1103448A GB 799765 A GB799765 A GB 799765A GB 799765 A GB799765 A GB 799765A GB 1103448 A GB1103448 A GB 1103448A
Authority
GB
United Kingdom
Prior art keywords
switches
solid state
supply
control device
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
GB799765A
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.)
Danfoss AS
Original Assignee
Danfoss AS
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 Danfoss AS filed Critical Danfoss AS
Publication of GB1103448A publication Critical patent/GB1103448A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • 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
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
    • H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
    • H02M5/22—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M5/25—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc 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
    • H02M5/253—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc 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 discharge tubes only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electronic Switches (AREA)
  • Electron Beam Exposure (AREA)

Abstract

1,103,448. Control systems for consumption apparatus. DANFOSS A.S. 24 Feb., 1965 [24 Feb., 1964], No. 7997/65. Heading H2H. [Also in Division H3] In a multiphase switching circuit, having a junctionless non-rectifying solid state switch 9, 10, 11 capable of switching from a high to a low resistance condition when a threshold value of an applied voltage is exceeded and reverting to the high resistance condition when the current through the device falls below a holding value connected in each line of the supply a control device 12 is connected to apply timed control voltage pulses to the individual solid state switches at a rate of one per 180 electrical degrees in each phase to produce the desired switching. The switches can be polycrystalline solid state switches consisting predominantly of tellurium with the addition of elements from Groups IV and V of the Periodic Table. Solid state switches 15, 16, 17 isolate the control device 12 and delaying devices 13, 14 from the supply and the control voltage device 12 is coupled, as indicated at 18, to the supply so that the pulses are applied in the required phase sequence. Output regulation can be obtained by including a phase shifter in the control device. In a modification (Fig. 3, not shown), the switches are formed as a single unit having a common star point electrode (22) on which is mounted the solid state switch material and the three electrodes (24, 25, 26). In a further circuit (Fig. 5, not shown), each supply line has two series connected solid state switches and when the control voltage is applied across one of these switches to make it conduct the other is caused to conduct by the application of the supply voltage across it. The other phases are similarly switched on by the delayed pulse obtained from the delay devices 13 and 14 which include isolating transformers. In this arrangement the switches can be switched on together by D.C. applied (at 31) to the control device 12 via a transformer (28, 29) and line (27).
GB799765A 1964-02-24 1965-02-24 Multi-phase switching circuit Expired GB1103448A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED43709A DE1219075B (en) 1964-02-24 1964-02-24 Multi-phase electronic circuit arrangement

Publications (1)

Publication Number Publication Date
GB1103448A true GB1103448A (en) 1968-02-14

Family

ID=7047800

Family Applications (1)

Application Number Title Priority Date Filing Date
GB799765A Expired GB1103448A (en) 1964-02-24 1965-02-24 Multi-phase switching circuit

Country Status (5)

Country Link
BE (1) BE659774A (en)
DE (1) DE1219075B (en)
DK (1) DK117082B (en)
GB (1) GB1103448A (en)
NL (1) NL6502196A (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1079212B (en) * 1958-06-30 1960-04-07 Siemens Ag Semiconductor arrangement with partially negative voltage characteristics, in particular switching diode
DE1147980B (en) * 1961-10-18 1963-05-02 Licentia Gmbh Multi-phase switch, especially three-phase switch for very high switching numbers

Also Published As

Publication number Publication date
BE659774A (en) 1965-06-16
DE1219075B (en) 1966-06-16
DK117082B (en) 1970-03-16
NL6502196A (en) 1965-08-25

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