IT1264098B1 - Integrated emergency lighting system - Google Patents
Integrated emergency lighting systemInfo
- Publication number
- IT1264098B1 IT1264098B1 IT93BO000121A ITBO930121A IT1264098B1 IT 1264098 B1 IT1264098 B1 IT 1264098B1 IT 93BO000121 A IT93BO000121 A IT 93BO000121A IT BO930121 A ITBO930121 A IT BO930121A IT 1264098 B1 IT1264098 B1 IT 1264098B1
- Authority
- IT
- Italy
- Prior art keywords
- line
- current
- microprocessor
- circuit
- controlled
- Prior art date
Links
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The current in line 1 is made to flow from a mains input to a rectifier bridge 2 via a switch 3, and to flow to the line 4 which has an inverter circuit 5 and from the line 6 to a fluorescent tube 7, the inverter circuit 5 being acted on by a microprocessor 8 via the line 9 to regulate the current flowing in the said fluorescent tube 7. The current is also made to flow along the line 10 to a transformer 11 and then to a rectifier bridge 12, thus producing in the line 13 a low-voltage current which then flows to a load current control circuit 14 which is also controlled by the microprocessor 8 via the line 15. The circuit 14 supplies, via the line 16, a nickel-cadmium battery 17 and an emergency control circuit 18 which is also controlled by the microprocessor 8 via the line 19. In case of emergency, the current from the battery 17 flows into the line 20, being enabled to do so by the emergency control circuit 18. The said current supplies a step-up circuit 21 which is also controlled by the microprocessor 8 and has an output onto line 4 for illuminating the fluorescent tube 7. <IMAGE>
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT93BO000121A IT1264098B1 (en) | 1993-03-25 | 1993-03-25 | Integrated emergency lighting system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT93BO000121A IT1264098B1 (en) | 1993-03-25 | 1993-03-25 | Integrated emergency lighting system |
Publications (3)
Publication Number | Publication Date |
---|---|
ITBO930121A0 ITBO930121A0 (en) | 1993-03-25 |
ITBO930121A1 ITBO930121A1 (en) | 1994-09-25 |
IT1264098B1 true IT1264098B1 (en) | 1996-09-10 |
Family
ID=11338850
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT93BO000121A IT1264098B1 (en) | 1993-03-25 | 1993-03-25 | Integrated emergency lighting system |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1264098B1 (en) |
-
1993
- 1993-03-25 IT IT93BO000121A patent/IT1264098B1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
ITBO930121A1 (en) | 1994-09-25 |
ITBO930121A0 (en) | 1993-03-25 |
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Legal Events
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0001 | Granted |