IT1271547B - Device for controlling the luminous intensity of a lamp - Google Patents
Device for controlling the luminous intensity of a lampInfo
- Publication number
- IT1271547B IT1271547B ITMI931157A ITMI931157A IT1271547B IT 1271547 B IT1271547 B IT 1271547B IT MI931157 A ITMI931157 A IT MI931157A IT MI931157 A ITMI931157 A IT MI931157A IT 1271547 B IT1271547 B IT 1271547B
- Authority
- IT
- Italy
- Prior art keywords
- resistor
- series
- controlling
- control element
- luminous intensity
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 abstract 2
- 229910052736 halogen Inorganic materials 0.000 abstract 2
- 150000002367 halogens Chemical class 0.000 abstract 2
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
Device for controlling the luminous intensity of a halogen lamp LP, comprising a power circuit PW and a control element SW1 in series with the halogen lamp LP and controlled by a microprocessor mP, and a power supply unit AL for the microprocessor, consisting of two branches, connected in parallel to the control element SW1, and alternately supplying the desired continuous supply voltage Vcc according to whether the control element is or is not conducting. The first branch comprises a resistor R1 in series with a Zener diode D2 and with a capacitor C1 connected in parallel with each other, while the second branch comprises a transistor TR1 with a capacitor C2 on the emitter and a resistor R3 on the collector, biased by a resistor R2 and a Zener diode D4 in series. <IMAGE>
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI931157A IT1271547B (en) | 1993-06-02 | 1993-06-02 | Device for controlling the luminous intensity of a lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI931157A IT1271547B (en) | 1993-06-02 | 1993-06-02 | Device for controlling the luminous intensity of a lamp |
Publications (3)
Publication Number | Publication Date |
---|---|
ITMI931157A0 ITMI931157A0 (en) | 1993-06-02 |
ITMI931157A1 ITMI931157A1 (en) | 1994-12-02 |
IT1271547B true IT1271547B (en) | 1997-05-30 |
Family
ID=11366317
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITMI931157A IT1271547B (en) | 1993-06-02 | 1993-06-02 | Device for controlling the luminous intensity of a lamp |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1271547B (en) |
-
1993
- 1993-06-02 IT ITMI931157A patent/IT1271547B/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
ITMI931157A1 (en) | 1994-12-02 |
ITMI931157A0 (en) | 1993-06-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted |