GB2220533A - Signal conditioning device - Google Patents

Signal conditioning device Download PDF

Info

Publication number
GB2220533A
GB2220533A GB8816367A GB8816367A GB2220533A GB 2220533 A GB2220533 A GB 2220533A GB 8816367 A GB8816367 A GB 8816367A GB 8816367 A GB8816367 A GB 8816367A GB 2220533 A GB2220533 A GB 2220533A
Authority
GB
United Kingdom
Prior art keywords
resistance
led
nodes
reactive
reversed
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.)
Withdrawn
Application number
GB8816367A
Other languages
English (en)
Other versions
GB8816367D0 (en
Inventor
Vivian Jude Amourgam
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB8816367A priority Critical patent/GB2220533A/en
Publication of GB8816367D0 publication Critical patent/GB8816367D0/en
Priority to PCT/GB1989/000764 priority patent/WO1990000835A1/fr
Priority to AU38774/89A priority patent/AU3877489A/en
Priority to EP19890908235 priority patent/EP0452321A1/fr
Publication of GB2220533A publication Critical patent/GB2220533A/en
Withdrawn legal-status Critical Current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
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/78—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled
    • H03K17/795—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled controlling bipolar transistors
    • H03K17/7955—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled controlling bipolar transistors using phototransistors
    • 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
    • H02M5/257—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 semiconductor devices only
    • H02M5/2573—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 semiconductor devices only with control circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/30—Modifications for providing a predetermined threshold before switching
    • H03K17/305—Modifications for providing a predetermined threshold before switching in thyristor switches

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Led Devices (AREA)
GB8816367A 1988-07-08 1988-07-08 Signal conditioning device Withdrawn GB2220533A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB8816367A GB2220533A (en) 1988-07-08 1988-07-08 Signal conditioning device
PCT/GB1989/000764 WO1990000835A1 (fr) 1988-07-08 1989-07-06 Dispositif de conditionnement de signaux
AU38774/89A AU3877489A (en) 1988-07-08 1989-07-06 Signal conditioning device
EP19890908235 EP0452321A1 (fr) 1988-07-08 1989-07-06 Dispositif de conditionnement de signaux

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8816367A GB2220533A (en) 1988-07-08 1988-07-08 Signal conditioning device

Publications (2)

Publication Number Publication Date
GB8816367D0 GB8816367D0 (en) 1988-08-10
GB2220533A true GB2220533A (en) 1990-01-10

Family

ID=10640169

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8816367A Withdrawn GB2220533A (en) 1988-07-08 1988-07-08 Signal conditioning device

Country Status (4)

Country Link
EP (1) EP0452321A1 (fr)
AU (1) AU3877489A (fr)
GB (1) GB2220533A (fr)
WO (1) WO1990000835A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2252685A (en) * 1991-02-08 1992-08-12 Richard Dean Ledger Power supply circuit for indicator
GB2253531B (en) * 1991-02-22 1995-01-04 Douglas Balls Energy saving unit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3524986A (en) * 1967-02-06 1970-08-18 Gen Electric Semiconductor light gating of light activated semiconductor power control circuits
US4052624A (en) * 1976-04-07 1977-10-04 General Electric Company Ramp and pedestal control circuit
US4653084A (en) * 1984-07-20 1987-03-24 Om Ahuja Remote actuated switch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2252685A (en) * 1991-02-08 1992-08-12 Richard Dean Ledger Power supply circuit for indicator
GB2253531B (en) * 1991-02-22 1995-01-04 Douglas Balls Energy saving unit

Also Published As

Publication number Publication date
EP0452321A1 (fr) 1991-10-23
GB8816367D0 (en) 1988-08-10
AU3877489A (en) 1990-02-05
WO1990000835A1 (fr) 1990-01-25

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)