DE2918015A1 - Gas discharge lamp circuit with feedback regulation - giving constant light output independent of varying ambient temp. - Google Patents

Gas discharge lamp circuit with feedback regulation - giving constant light output independent of varying ambient temp.

Info

Publication number
DE2918015A1
DE2918015A1 DE19792918015 DE2918015A DE2918015A1 DE 2918015 A1 DE2918015 A1 DE 2918015A1 DE 19792918015 DE19792918015 DE 19792918015 DE 2918015 A DE2918015 A DE 2918015A DE 2918015 A1 DE2918015 A1 DE 2918015A1
Authority
DE
Germany
Prior art keywords
light output
lamp circuit
constant light
discharge lamp
gas discharge
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Withdrawn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
DE19792918015
Other languages
German (de)
Inventor
Eberhard Maier
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 DE19792918015 priority Critical patent/DE2918015A1/en
Publication of DE2918015A1 publication Critical patent/DE2918015A1/en
Withdrawn legal-status Critical Current

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
    • H05B41/02—Details
    • H05B41/04—Starting switches
    • H05B41/042—Starting switches using semiconductor devices
    • H05B41/044—Starting switches using semiconductor devices for lamp provided with pre-heating electrodes
    • H05B41/046—Starting switches using semiconductor devices for lamp provided with pre-heating electrodes using controlled semiconductor devices

Abstract

The lamp circuit incorporating no other inductive load has an opto-electronic feedback system for regulating the dynamic characteristics in dependence on the light output. This allows a constant light output to be maintained and independent of acoustic or radio interference over a range of different ambient temps. Pref. the feedback is provided by a phototransistor in the mounting for the discharge tube, in conjunction with inverter eg. a unijunction transistor, the base voltage varied via an adjustable resistor. The tube voltage is smoothed by a capacitor connected in parallel with thenetwork supply.

Description

"Leuchtstofflampe zum verlustärmeren Betrieb mit kapazitivem"Fluorescent lamp for low-loss operation with capacitive

Anschlußwert" Beschreibung: Bei der "Leuchtstofflampe zum Erreichen von konstanter Raumbeleuchtung mit selbsttätiger optoelektronischer Regelung" handelt es sich um ein Gerät, das mit einer fluoreszierenden Röhre des allgemein gebräuchlichen Systeme (herkömmlicher Typ) betrieb wird; in Reihe mit dem Glühvendelstromkreis wird eine selbsttätige, optisch-elektronische Regelung eingebaut (z.B. Fototransistor mit Inverter, Basisspannung durch Regelwiderstand einstellbar). Die lichtempfindliche Fläche des optisch-elektronischen Bauelements befindet sich auf der Leuchtstofflampenfassung. Die Lichtempfindlichkeit des fotoelektrischen Bauteils läßt sich seitlich an der Röhrenfassung einstellen. Ein Kondensator, der parallel zu den Netzklemmen liegt, gittet die Röhrenspannung.Connection value "Description: With the" fluorescent lamp to achieve is about constant room lighting with automatic optoelectronic control " it is a device that works with a fluorescent tube of the commonly used Systems (conventional type) are operated; in series with the glow vendel circuit an automatic, optical-electronic control is installed (e.g. phototransistor with inverter, base voltage adjustable by regulating resistor). The light sensitive The surface of the opto-electronic component is located on the fluorescent lamp socket. The photosensitivity of the photoelectric component can be seen on the side of the Adjust tube socket. A capacitor that is parallel to the mains terminals, grids the tube voltage.

Betriebsverhalten: Nech Einschalten der Lampe flouresziert die Röhre nicht, die Basis des Fototransistors stent deshalb nicht unter Spannung, d.h. üvber den Inverter (IJniunctions-TransistorJ wird der Glühwendelstromkreis niederohmig geschlossen, d.h. die Glühwendel erlJärmen sich, bis eine Durchflutung der Raumladung stattfindet (die Lampe hat gezündet), us bei der Spitzenspannung der anliegenden Versorgungsspannung (Phase,Phase bzw.Operating behavior: When the lamp is switched on, the tube lights up not, the base of the phototransistor is therefore not under voltage, i.e. over the inverter (IJniunctions-TransistorJ the filament circuit becomes low-resistance closed, i.e. the filament goes out until the space charge is flooded takes place (the lamp has ignited), us at the peak voltage of the applied Supply voltage (phase, phase or

Phase/Null) der Fall ist. Nach Zünden der Röhre regelt sich über oen Fototransistor die Glühwendelemission so weit herunter bis die Beleuchtungsstärke den durch das Potentiometer eingestellten crt erreicht,Phase / zero) is the case. After the tube has been ignited, it regulates itself via oen Phototransistor down the filament emission until the illuminance reaches the crt set by the potentiometer,

Claims (1)

"Leuchtstofflampe zum verlustärmeren Betrieb mit kapazitivem Anschlußwert" Patentansprüche: Leuchtstofflampe, dadurch gekennzeichnet, daß sie keinen induktiven Verbraucher mehr enthält, daß sie verlustärmer ist, daß sie mit einer selbsttätigen optisch-elektronischen Regelung ausgestattet ist, die ein dynamisches Verhalten der Lampe bezüglich der Lichtabgabe zuläßt und die auch bei wechselnden Umgebungseinflüssen (Temperatur) eine konstante Lichtabgabe zuläßt, und die auch keine akkustischen, verlustwärmebedingten und funkstörenden Belästigungen hervorruft."Fluorescent lamp for low-loss operation with capacitive connection value" Claims: fluorescent lamp, characterized in that it is not inductive Consumers contains more that it is less lossy that they are with an automatic opto-electronic control is equipped, which has a dynamic behavior of the lamp with regard to the light output and that also with changing environmental influences (Temperature) allows a constant emission of light, and no acoustic, heat loss and radio-disruptive annoyance.
DE19792918015 1979-05-04 1979-05-04 Gas discharge lamp circuit with feedback regulation - giving constant light output independent of varying ambient temp. Withdrawn DE2918015A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19792918015 DE2918015A1 (en) 1979-05-04 1979-05-04 Gas discharge lamp circuit with feedback regulation - giving constant light output independent of varying ambient temp.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792918015 DE2918015A1 (en) 1979-05-04 1979-05-04 Gas discharge lamp circuit with feedback regulation - giving constant light output independent of varying ambient temp.

Publications (1)

Publication Number Publication Date
DE2918015A1 true DE2918015A1 (en) 1980-11-13

Family

ID=6069933

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792918015 Withdrawn DE2918015A1 (en) 1979-05-04 1979-05-04 Gas discharge lamp circuit with feedback regulation - giving constant light output independent of varying ambient temp.

Country Status (1)

Country Link
DE (1) DE2918015A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0072622A2 (en) * 1981-07-17 1983-02-23 Flexiwatt Corporation Energy conservation system providing current control
US5652504A (en) * 1993-11-22 1997-07-29 Lti International, Inc. Energy saving power control system
US5754036A (en) * 1996-07-25 1998-05-19 Lti International, Inc. Energy saving power control system and method
US6172489B1 (en) 1999-12-28 2001-01-09 Ultrawatt.Com Inc. Voltage control system and method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0072622A2 (en) * 1981-07-17 1983-02-23 Flexiwatt Corporation Energy conservation system providing current control
EP0072622A3 (en) * 1981-07-17 1984-05-16 Flexiwatt Corporation Energy conservation system providing current control
US5652504A (en) * 1993-11-22 1997-07-29 Lti International, Inc. Energy saving power control system
US6191563B1 (en) 1993-11-22 2001-02-20 Ultrawatt.Com Energy saving power control system
US5754036A (en) * 1996-07-25 1998-05-19 Lti International, Inc. Energy saving power control system and method
US6172489B1 (en) 1999-12-28 2001-01-09 Ultrawatt.Com Inc. Voltage control system and method

Similar Documents

Publication Publication Date Title
EP0447136B1 (en) A method for automatic switching and control of lighting
US3449629A (en) Light,heat and temperature control systems
US3935505A (en) Fluorescent lamp dimmer
US5404080A (en) Lamp brightness control circuit with ambient light compensation
US4009387A (en) Automatic energy control lighting system with automatically variable dc source
US5498931A (en) Method for automatic switching and control of lighting
US4394603A (en) Energy conserving automatic light output system
US4016451A (en) High pressure discharge lamp dimming circuit utilizing variable duty-cycle photocoupler
US4234820A (en) Light regulation system
US4347461A (en) Incident illumination responsive light control
US4478468A (en) Line-gated switching power supply
US3335318A (en) Solid state dimming circuit
US3821601A (en) Regulated dimmer for incandescent lamps
DE2918015A1 (en) Gas discharge lamp circuit with feedback regulation - giving constant light output independent of varying ambient temp.
US3609451A (en) Automatic illumination control system responsive to total illumination
US2269324A (en) Light responsive apparatus for controlling linear voltage
US4012663A (en) Lighting control system
GB2236918A (en) Lighting or flash device
WO1993009649A1 (en) Lamp brightness control circuit with ambient light compensation
US4766363A (en) Voltage limiting control system for heat emitting loads
CA1128604A (en) Energy conserving automatic light output system
HU210725B (en) Power controller containing switch with controlled running up/down
US3967904A (en) Precision radiation source regulation circuit
WO1990001247A1 (en) Regulated ac controller
GB1083859A (en)

Legal Events

Date Code Title Description
8130 Withdrawal