EP0220598A1 - Lichtquellenregulierungsvorrichtung - Google Patents

Lichtquellenregulierungsvorrichtung Download PDF

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Publication number
EP0220598A1
EP0220598A1 EP86114213A EP86114213A EP0220598A1 EP 0220598 A1 EP0220598 A1 EP 0220598A1 EP 86114213 A EP86114213 A EP 86114213A EP 86114213 A EP86114213 A EP 86114213A EP 0220598 A1 EP0220598 A1 EP 0220598A1
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EP
European Patent Office
Prior art keywords
circuit
logic
voltage
lighting
timer
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Withdrawn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
EP86114213A
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English (en)
French (fr)
Inventor
Marc Raes
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.)
Alcatel CIT SA
Original Assignee
Alcatel CIT SA
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Filing date
Publication date
Application filed by Alcatel CIT SA filed Critical Alcatel CIT SA
Publication of EP0220598A1 publication Critical patent/EP0220598A1/de
Withdrawn legal-status Critical Current

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    • 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
    • H05B41/3922—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations and measurement of the incident light

Definitions

  • the present invention relates to the electrical lighting of premises, more particularly offices, shops and factories.
  • the exterior lighting makes it useful to add an interior electrical light which does not require the lights to operate at full power. Reducing the power of electric lighting in these circumstances makes it less aggressive and therefore reduces eye fatigue, saves energy and increases the lifespan of the luminaires because their fittings emit less heat.
  • the object of the present invention is to regulate the electric lighting sources as a function of the external lighting which is simple, practical and easy to implement.
  • the time delay logic circuit advantageously comprises two timers which control over a certain period of time when they are triggered the setting at maximum power of the interior light sources and which are triggered one each time the supply voltage of the device for reappearance regulation after a cut and the other at the end of each cut of the electric lighting controlled by one either of the selection circuits.
  • the automatic selection circuit can be implemented using a window discriminator receiving as input the signal from a photoelectric cell mounted in a polarization bridge and placed in outside light, said signal being transmitted to it via a low-pass filter eliminating rapid fluctuations corresponding to cloudy periods.
  • FIG. 1 A distinction is made in Figure 1 the electrical supply circuit 1 of the interior electrical lighting sources which consists of a three-phase autotransformer 10 supplied by the network L1, L2, L3, N having two sockets U1, U2, U3 and V1 , V2, V3, of a contactor system KM1, KM2, KM3 controlled by coils connecting the output of the electrical supply circuit to the network either directly or through one of the sockets of the transformer 10 and groups of fuses F1, F2, F3 preventing the accidental short-circuiting of the windings of the autotransformer 10.
  • Contactors KM1, KM2, KM3 are closed in, working position and, allow either, when they are all de-energized, to cut off from the network the output of the electrical supply circuit 1 to switch off the lighting, or when one of them is excited to connect the output of the power supply 1 to the network, directly, without going through the autotransformer 10 (contactor KM1) to obtain maximum lighting or, via one of the sockets of the autotransformer 10, (contactor KM2, KM3) to obtain more or less dim lighting.
  • the sockets U1, U2, U3 and V1, V2, V3 of the autotransformer 10 are chosen so as to allow the lighting sources to operate at 70% and 60% of their light power.
  • the minimum output voltage of the supply circuit 1 which is that available on the socket V1, V2, V3 of the autotransformer 10 is chosen sufficiently high so that the fluorescent tubes don't drop out.
  • the contactors KM1, KM2, KM3 of the electrical supply circuit 1 are controlled by means of a coupling circuit 2 by means of a manual selection circuit 3 or an automatic selection circuit 4 operating at from exterior lighting.
  • the automatic selection circuit 4 includes a photoresist cell 40 exposed to external lighting and placed in series in a polarization bridge with an adjustable adjustment resistor 41, a low-pass filter with series resistance 42 and parallel capacitance 43 connected at input. at the midpoint of the polarization bridge where a variable electric voltage develops which is all the weaker as the external illumination is more intense and a window discriminator 44 which is connected to the output of the low-pass filter and which has four binary outputs 440, 441, 442, 443 by which it can control the contactors KM1, KM2, KM3 whose states determine the supply voltage of the electric lighting sources.
  • the low-pass filter 42, 43 eliminates the transmission, to the window discriminator 44, of rapid variations in the voltage of the midpoint of the polarization bridge of the photoresistor 40 caused by fluctuations in the external illumination due to cloudy passages.
  • the window discriminator 44 deduces from the external illumination the value for adjusting the voltage of the supply circuit 1 by locating the instantaneous value of the voltage of the midpoint of the polarization bridge of the photoresistor once it has been filtered with respect to a switching of its variation range in four windows delimited by two extreme thresholds and an intermediate voltage threshold.
  • the output 440 is assigned to a first window below the extreme lower voltage threshold which is only reached by the voltage of the midpoint of the polarization bridge of the photoresistor 40 when the external luminosity is sufficiently strong to eliminate the need for interior lighting. Its passage to the high logic level 1 is interpreted as an order to open all the contactors KM1, KM2, KM3 in order to isolate the lighting sources from the network.
  • the output 441 is assigned to a second window beyond the upper extreme voltage threshold which is reached by the voltage of the midpoint of the polarization bridge of the photoresistor 40 only when the external brightness is reduced, tending towards that of a night time and requires full interior lighting. Its passage to the high logic level 1 is interpreted as an order to close the contactor KM1 in order to apply the network voltage to the lighting sources.
  • the output 442 is assigned to a third window comprised between the upper extreme and intermediate voltage thresholds, which is reached by the voltage of the midpoint of the polarization bridge of the photoresistor 40 when the external brightness is reduced and nevertheless authorizes operation of the interior lighting at 70% of its power. Its passage to the high logic level 1 is interpreted as an order to close the contactor KM2 in order to apply to the lighting sources the weakened voltage of the network available on the socket U1, U2, U3 of the autotransformer 10.
  • the output 443 is assigned to a fourth window comprised between the lower extreme and intermediate voltage thresholds which is only reached by the intermediate voltage of the polarization bridge of the photoresistor 40 when the exterior brightness is average and allows interior lighting at 60 % of its power. His passage to logic level high 1 is interpreted as an order to close the contactor KM3 in order to apply to the light sources the most weakened network voltage available on the socket V1, V2, V3 of the autotransformer 10.
  • the window discriminator 44 is of conventional embodiment, for example, based on integrated circuits of the TCA 965 type from the company SIEMENS.
  • the manual selection circuit 3 has four binary outputs 300, 301, 302, 303 which play the same roles as the respective outputs 440, 441, 442, 443 of the automatic selection circuit 4. It includes bias resistors 310, 311, 312, 313 connecting each of the outputs to ground to provide them with a low logic level 0 at rest and a switch 31, with four positions, which is connected by its movable contact and a resistor 32 to the positive pole + V of a source of polarization and by its fixed contacts at outputs 300, 301, 302, 303 and which allows one of the outputs to be brought to logic high level 1, output 300 when the lighting lamps are to be switched off, and the output 301 respectively 302 or 303 when you want to operate the light sources at 100%, 70% or 60% of their power.
  • Capacitors 320, 321, 322, 323 placed in parallel on the polarization resistors 310, 311, 312, 313 create a time delay which makes it possible to have no cut-off during the passage from one position to another of the switch 31.
  • the coupling circuit 2 is formed by a logic processing circuit 5 followed by a power interface adapting its output levels to the control of the actuating coils when the contactors KM1, KM2, KM3 are closed.
  • the power interface includes relays K1, K2, K3 which control, by their working contact, the excitation of the actuating coils when the contactors KM1, KM2 and KM3 are closed and three amplification stages with transistors 21, 22, 33 supplying the excitation coils of these relays K1, K2, K3 which are fitted with freewheeling diodes 24, 25, 26.
  • Logic processing circuit 5 with its interconnections to the power interface and to the manual 3 and automatic 4 selection circuits is detailed in FIG. 2. It comprises at the input a multiplexer 6 making it possible to choose the signals of the manual selection circuit 3 or those of the automatic selection circuit 4 followed by '' a prepositioning circuit 7 controlled, through a door of type "and" 75, by timers 8 and 9 allowing under certain conditions to impose over a certain period of interior lighting at 100% power, a priority encoder 11 guaranteeing the excitation of a single contactor KM1, KM2, KM3 at the same time and a blocking circuit 12 blocking all excitation control signals from the contactors KM1, KM2, KM3 in the event of an interior lighting extinction command .
  • the multiplexer 6 is conventionally formed of two banks of four logic gates of type "and” with two inputs unlocked alternately by means of an inverter 60, and of a battery of four logic gates of type "or” bringing together two by two the outputs of the "and” type logic gates of the two benches.
  • the prepositioning circuit 7 is formed by two logic gates of type "and" 70, 71 and by a logic gate of type "or” 72 with two inputs, one of which is a reverser.
  • timers 8 and 9 When timers 8 and 9 are not triggered, it transmits without modification the high logic levels which come from outputs 441, 442, 443 of the automatic selection circuit 4 or from outputs 301, 302, 303 of the manual selection circuit and which correspond to orders for adjusting the interior lighting to 100%, 70% or 60% of its power.
  • the logic gates of type "and" 70, 71 are blocked with their outputs at low logic level preventing the transmission of an order to adjust the interior lighting to 70% or 60% of its power and the logic gate type "or” 72 blocks with its output at the high logic level simulating an interior lighting order at 100% of its power.
  • the logic gate 90 After commissioning, in the absence of a command to switch off the interior lighting, the logic gate 90 receives a constant low logic level 0 on one of its inputs and keeps the capacitor 92 charged preventing the timer 9 from rearm.
  • the logic door of type "and" 90 is applied to its two inputs a high logic level 1 which switches its output to high logic level 1 authorizing the discharge of the capacitor 92 and therefore resetting timer 9.
  • the priority encoder 11 receives the logic commands for controlling the adjustment of the interior lighting at 100%, 70% and 60% of its power and transmits only one at a time, giving priority to the logic control order corresponding to the lowest lighting power. It facilitates the realization of the automatic selection circuit 4 by allowing it to issue simultaneous commands.
  • the blocking circuit 12 makes it possible to block the transmission, at the power interface, of orders for adjusting the power of the interior lighting when the selection circuit in service, manual or automatic, issues an order to switch off the 'inside lighting. It is made up of a bank of logic doors of type "and" placed at the output of the priority encoder 11 and provided with a control input coupled, through an inverter, to the output of the logic gate of type " or "of the multiplexer 6 which issues the orders for switching off the interior lighting.

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
EP86114213A 1985-10-16 1986-10-14 Lichtquellenregulierungsvorrichtung Withdrawn EP0220598A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8515343 1985-10-16
FR8515343A FR2588712B1 (fr) 1985-10-16 1985-10-16 Dispositif de regulation de sources d'eclairage

Publications (1)

Publication Number Publication Date
EP0220598A1 true EP0220598A1 (de) 1987-05-06

Family

ID=9323881

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86114213A Withdrawn EP0220598A1 (de) 1985-10-16 1986-10-14 Lichtquellenregulierungsvorrichtung

Country Status (2)

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EP (1) EP0220598A1 (de)
FR (1) FR2588712B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2123416A1 (es) * 1993-02-04 1999-01-01 Aguiar Lopez Emilio Mejoras introducidas en la patente de invencion numero 9300200/9 relativa a un sistema para la reduccion de consumo de energia electrica en redes de alumbrado publico y privado.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3940660A (en) * 1973-12-14 1976-02-24 Edwards Frederick H Circuitry for load connection and disconnection
FR2293781A1 (fr) * 1974-12-05 1976-07-02 Legrand Sa Interrupteur a interventions systematiques liees a des modifications determinees de l'eclairement naturel ambiant
US4189664A (en) * 1977-10-05 1980-02-19 Hirschfeld Richard L Power control unit for automatic control of power consumption in a lighting load
DE3000400A1 (de) * 1980-01-08 1981-07-09 Harald 7012 Fellbach Lück Verfahren und vorrichtung zum betreiben von leuchtstofflampen, hochdruckdampflampen u.dgl.
WO1981003596A1 (en) * 1980-05-27 1981-12-10 H Hoge A feedback control system for applying ac power to ballasted lamps

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3940660A (en) * 1973-12-14 1976-02-24 Edwards Frederick H Circuitry for load connection and disconnection
FR2293781A1 (fr) * 1974-12-05 1976-07-02 Legrand Sa Interrupteur a interventions systematiques liees a des modifications determinees de l'eclairement naturel ambiant
US4189664A (en) * 1977-10-05 1980-02-19 Hirschfeld Richard L Power control unit for automatic control of power consumption in a lighting load
DE3000400A1 (de) * 1980-01-08 1981-07-09 Harald 7012 Fellbach Lück Verfahren und vorrichtung zum betreiben von leuchtstofflampen, hochdruckdampflampen u.dgl.
WO1981003596A1 (en) * 1980-05-27 1981-12-10 H Hoge A feedback control system for applying ac power to ballasted lamps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2123416A1 (es) * 1993-02-04 1999-01-01 Aguiar Lopez Emilio Mejoras introducidas en la patente de invencion numero 9300200/9 relativa a un sistema para la reduccion de consumo de energia electrica en redes de alumbrado publico y privado.

Also Published As

Publication number Publication date
FR2588712A1 (fr) 1987-04-17
FR2588712B1 (fr) 1987-12-11

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