SE441563B - CONTROL DEVICE FOR A CONVERSION POWER VALVE FOR OPERATION OF A GAS EMISSION PIPE FROM A DIRECTION SHELL - Google Patents

CONTROL DEVICE FOR A CONVERSION POWER VALVE FOR OPERATION OF A GAS EMISSION PIPE FROM A DIRECTION SHELL

Info

Publication number
SE441563B
SE441563B SE8002691A SE8002691A SE441563B SE 441563 B SE441563 B SE 441563B SE 8002691 A SE8002691 A SE 8002691A SE 8002691 A SE8002691 A SE 8002691A SE 441563 B SE441563 B SE 441563B
Authority
SE
Sweden
Prior art keywords
control device
circuit
gas discharge
direct current
source
Prior art date
Application number
SE8002691A
Other languages
Swedish (sv)
Other versions
SE8002691L (en
Inventor
Selfrid Gunnar Ohlund
Nils Arthur Olsson
Original Assignee
Selfrid Gunnar Ohlund
Nils Arthur Olsson
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 Selfrid Gunnar Ohlund, Nils Arthur Olsson filed Critical Selfrid Gunnar Ohlund
Priority to SE8002691A priority Critical patent/SE441563B/en
Priority to EP19810900926 priority patent/EP0049257A1/en
Priority to PCT/SE1981/000106 priority patent/WO1981002965A1/en
Publication of SE8002691L publication Critical patent/SE8002691L/en
Publication of SE441563B publication Critical patent/SE441563B/en

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/282—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices
    • H05B41/2821—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices by means of a single-switch converter or a parallel push-pull converter in the final stage
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • H05B41/3927—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations by pulse width modulation

Landscapes

  • Control Of Gas Discharge Display Tubes (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)

Description

10 15 20' 25 30 35 8302691-'7 2 -strömventilen för drift av ett gasurladdningsrör LR från en likströmskälla. Denna kända omvandlare-strömventil in- nefattar en transformator, över vars sekundärlindning D gasurladdningsröret LR är anslutet och över vars primär- lindning B, C en RC-krets A i serie med en effekttransis- tors T bas-kollektorkrets är ansluten, vilken effekttran- sistorš Tl emitter är ansluten till likströmskällans jord- klämma, medan ett uttag på transformatorns primärlindning B,'C är anslutet till likströmskällans plusklämma, vilket uttag uppdelar primärlindningen i en driftlindning B och en återkopplingslindning C för RC-kretsen Ä, Denna består av en kondensator A , som är parallellkopplad med ett motstånd A C R. 10 15 20 ' 25 30 35 8302691-'7 2 power valve for operating a gas discharge pipe LR from a direct current source. This known converter flow valve is comprises a transformer, over whose secondary winding D the gas discharge pipe LR is connected and over whose primary winding B, C an RC circuit A in series with a power transmission tor T base collector circuit is connected, which power transmission The Tl emitter is connected to the earth source of the direct current source. clamp, while a socket on the primary winding of the transformer B, 'C is connected to the DC terminal of the DC power source, which socket divides the primary winding into an operating winding B and a feedback winding C for the RC circuit Ä, This consists of a capacitor A, which is connected in parallel with a resistor A C R.

Omvandlaren-strömventilen alstrar pulser av i fig. 2a visad typ för drift av gasurladdningsröret LR med kon- stant ljusflöde.The converter-current valve generates pulses of FIG. 2a for operation of the gas discharge pipe LR with con- constant luminous flux.

I och för styrning av gasurladdningsrörets LR ljus- flöde är enligt föreliggande uppfinning en styranordning 2 ansluten till omvandlaren-strömventilen l. Styranordningen 2 innefattar en transistor T2, vars kollektor är ansluten till hopkopplingspunkten mellan RC-kretsen A och effekttran- sistorns Tl bas och vars emitter är ansluten till likströms- källans jordklämma samt vars bas är ansluten till en icke närmare visad styrpulskälla S via ett motstånd Rl. Transis- torns T2 bas är även ansluten till likströmskällans jord- klämma via ett motstånd R2. Motståndet Rl avser att skydda transistorn T2, medan motståndet R2 garanterar en fullstän- _dig strypfling av transistorn T2. _ Den icke närmare visade styrpulskällan S är anord- nad att avge fyrkantpulser av i fig. Zb visad typ.In order to control the gas discharge tube LR light flow is according to the present invention a control device 2 connected to the converter-power valve l. The control device 2 comprises a transistor T2, the collector of which is connected to the connection point between the RC circuit A and the power transmission the base T1 base and whose emitter is connected to the DC the source earth terminal and whose base is connected to a non detailed control pulse source S via a resistor R1. Transis- tower T2 base is also connected to the DC source ground clamp via a resistor R2. The resistor R1 is intended to protect transistor T2, while resistor R2 guarantees a complete Deep throttling of transistor T2. _ The control pulse source S, not shown in more detail, is arranged to emit square pulses of the type shown in Fig. Zb.

Då dessa pulser påtryckes transistorns T2 bas b, blir denna transistor ledande, varvid hopkopplingspunkten mellan RC-kretsen A och effekttransistorn Tl jordas genom transistorns T2 emitter-kollektorkrets. Under den tid som pulserna uppträder över transistorns T2 bas b kommer såsom framgår av fig. 2a inga pulser att uppträda över effekt- transistorns Tl kollektor a, varför lysröret LR kommer att vara släckt.When these pulses are applied to the base b2 of the transistor T2, this transistor becomes conductive, the coupling point between the RC circuit A and the power transistor T1 is grounded through the emitter-collector circuit of the transistor T2. During the time that the pulses appear across the base b of the transistor T2 come as Fig. 2a shows no pulses to occur over the power supply. the collector a1 of the transistor T1, why the fluorescent lamp LR will be off.

Genom att variera de av styrpulskällan S avgivna 10 15 20 25 8002691-7 pulsernas pulsbredd och pulsavstånd, dvs. pulsernas puls- kvot, kan man således variera gasurladdningsrörets LR ljus- flöde på ett enkelt och billigt sätt.By varying those emitted by the control pulse source S 10 15 20 25 8002691-7 the pulse width and pulse distance of the pulses, ie. the pulse rate of the pulses quota, one can thus vary the light discharge of the gas discharge tube flow in a simple and inexpensive way.

Då atyrpulskällans utsignalnivå är konstant låg ÖVÉI trênâistorns T2 bas komer således gasurladdningsrö- rets LR ljusflöde att vara maximalt, medan gasurladdnings- röret LR kommer att vara helt släckt, då styrpulskällans utsignalnivâ är konstant hög.When the output level of the atyr pulse source is constantly low The base of the ÖVÉI train tower T2 thus comes with a gas discharge tube. LR luminous flux to be maximum, while the gas discharge the tube LR will be completely extinguished, then the control pulse source output signal level is constantly high.

Styranordningen enligt uppfinningen kan således an- vändas för att såväl tända som släcka ett gasurladdningsrör samt för ett styra dess ljusflöde i beroende av de av styr- pulskällan avgivna pulsernas pulskvot. i Eërutom den i beskrivningsinledningen omnämnda till- lämpningen vid lgusbord kan styranordningen enligt uppfin- ningen tillämpas vid exempelvis neonlysrör, där dessa utfor- mats som Qgkstäver, siffror och/eller figurer. Neonrören kan exempelvis vara anordnade att underifrån belysa dans- golv i exempelvis diskotek. Det är även möjligt att frysa in dylika neonrör i isen på ishockey- eller bandyplaner för överföraflde av reklambudskap till åskådarna. För det fall att styrpglskällan S utgöres av en till en analog-digital- omvandlage ansluten mikrofon är det även möjligt att över- föra talinformation via gasurladdningsröret, vilken talin- formation kan omvandlas till hörbart ljud med hjälp av exem- pelvis en fototransistor och en till en högtalare ansluten digital=analogomvandlare.The control device according to the invention can thus be used turned to turn on and off a gas discharge pipe and for controlling its luminous flux in dependence on the the pulse source given the pulse ratio of the pulses. In addition to the addition mentioned in the introduction to the the application at the light table, the control device according to the invention the application is applied to, for example, neon fluorescent lamps, where these mats such as Qgk letters, numbers and / or figures. Neon tubes may, for example, be arranged to illuminate the dance floor from below. floors in, for example, discos. It is also possible to freeze put such neon tubes in the ice on ice hockey or bandy courts for transmit fl those of advertising messages to the spectators. For the case that the control source S consists of one to one analog-digital Conversely connected microphone, it is also possible to carry voice information via the gas discharge tube, which formation can be converted to audible sound by means of pelvis a phototransistor and one connected to a speaker digital = analog converter.

Claims (1)

8% 9226:91 r'- 7 ,.- PATENTKRAV Styranordning för en omvandlare-strömventil för drift av ett gasurladdningsrör (LR) från en likströms- källa, vilken omvandlare-strömventil innefattar en trans- formator, över vars sekundärlindning (D) gasurladdnings- röret (LR) är anslutet och över vars primärlindning (B, C) en RC-krets (A) i serie med en effekttransistors (Tl) bas- ' -kollektorkrets är ansluten, vilken effekttransistors (Tl) emitter är ansluten till likströmskällans jordklämma, me- dan ett uttag på primärlindningen (B, C) är-anslutet till likströmskällans plusklämma, vilket uttag uppdelar primär- lindningen i en driftlindning (B) och en återkopplings- lindning (C) för RC-kretsen (A), k ä n n e t e c k n a d av att styranordningen (2) innefattar en transistor (T2), _ vars kollektor är ansluten till hopkopplingspunkten mellan RC-kretsen (A) och effekttransistorns (Tl) bas och vars emit- ter är ansluten till likströmskällans jordklämma samt vars bas är ansluten till en styrpulskälla (S) för avgivande av fyrkantpulser för styrning av gasurladdningsrörets (LR) ljusflöde i beroende av de av styrpulskällan avgivna pul~ ïsernas pulskvot.8% 9226: 91 r'- 7, .- CLAIMS Claim control device for a converter current valve for operating a gas discharge pipe (LR) from a direct current source, which converter current valve comprises a transformer, over whose secondary winding (D) gas discharge the tube (LR) is connected and over whose primary winding (B, C) an RC circuit (A) in series with the base collector circuit of a power transistor (T1) is connected, which emitter of the power transistor (T1) is connected to the ground terminal of the direct current source , while an outlet on the primary winding (B, C) is connected to the positive terminal of the direct current source, which outlet divides the primary winding into an operating winding (B) and a feedback winding (C) for the RC circuit (A), k ä characterized in that the control device (2) comprises a transistor (T2), the collector of which is connected to the connection point between the RC circuit (A) and the base of the power transistor (T1) and whose emitter is connected to the ground terminal of the direct current source and whose base is connected to a control pulse source (S) f emitting square pulses for controlling the luminous flux of the gas discharge tube (LR) in dependence on the pulse ratio of the pulses emitted by the control pulse source.
SE8002691A 1980-04-09 1980-04-09 CONTROL DEVICE FOR A CONVERSION POWER VALVE FOR OPERATION OF A GAS EMISSION PIPE FROM A DIRECTION SHELL SE441563B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE8002691A SE441563B (en) 1980-04-09 1980-04-09 CONTROL DEVICE FOR A CONVERSION POWER VALVE FOR OPERATION OF A GAS EMISSION PIPE FROM A DIRECTION SHELL
EP19810900926 EP0049257A1 (en) 1980-04-09 1981-04-06 Control device for a converter-current valve for operating a gas discharge tube from a d.c. source
PCT/SE1981/000106 WO1981002965A1 (en) 1980-04-09 1981-04-06 Control device for a converter-current valve for operating a gas discharge tube from a d.c.source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8002691A SE441563B (en) 1980-04-09 1980-04-09 CONTROL DEVICE FOR A CONVERSION POWER VALVE FOR OPERATION OF A GAS EMISSION PIPE FROM A DIRECTION SHELL

Publications (2)

Publication Number Publication Date
SE8002691L SE8002691L (en) 1981-10-10
SE441563B true SE441563B (en) 1985-10-14

Family

ID=20340709

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8002691A SE441563B (en) 1980-04-09 1980-04-09 CONTROL DEVICE FOR A CONVERSION POWER VALVE FOR OPERATION OF A GAS EMISSION PIPE FROM A DIRECTION SHELL

Country Status (3)

Country Link
EP (1) EP0049257A1 (en)
SE (1) SE441563B (en)
WO (1) WO1981002965A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2120869A (en) * 1982-05-04 1983-12-07 Gen Electric Controlling the output level of an electrical power supply
US5041767A (en) * 1990-03-30 1991-08-20 Bertonee Inc. Digital controller for gas discharge tube

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1764138C3 (en) * 1968-04-06 1974-08-29 Stotz-Kontakt-Gmbh, 6800 Mannheim Arrangement for controlling the burning time of a fluorescent lamp
NL166381C (en) * 1971-05-08 1981-07-15 Philips Nv METHOD FOR OPERATING A LOW-PRESSURE MERCURY DISCHARGE LAMP, AND APPARATUS FOR CARRYING OUT THIS METHOD
US3821600A (en) * 1972-06-29 1974-06-28 Sperry Rand Corp Variable intensity illuminator
US4158793A (en) * 1977-07-11 1979-06-19 Lewis Gary D Gas discharge lamp control circuit
FR2416617A1 (en) * 1978-02-07 1979-08-31 Signaux Entr Electriques CONVERTER FOR THE POWER SUPPLY OF DISCHARGE LAMPS, AND MORE GENERALLY OF ARC LAMPS, AND ITS APPLICATION TO PROJECTORS FOR SUCH LAMPS
US4172981A (en) * 1978-06-15 1979-10-30 Francis H. Harrington Lighting system

Also Published As

Publication number Publication date
SE8002691L (en) 1981-10-10
EP0049257A1 (en) 1982-04-14
WO1981002965A1 (en) 1981-10-15

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