IT1271547B - Device for controlling the luminous intensity of a lamp - Google Patents

Device for controlling the luminous intensity of a lamp

Info

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
Application number
ITMI931157A
Other languages
Italian (it)
Inventor
Luigi Piacente
Lorenzo Masieri
Original Assignee
Tci Telecomunicazioni Italia S
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 Tci Telecomunicazioni Italia S filed Critical Tci Telecomunicazioni Italia S
Priority to ITMI931157A priority Critical patent/IT1271547B/en
Publication of ITMI931157A0 publication Critical patent/ITMI931157A0/en
Publication of ITMI931157A1 publication Critical patent/ITMI931157A1/en
Application granted granted Critical
Publication of IT1271547B publication Critical patent/IT1271547B/en

Links

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>
ITMI931157A 1993-06-02 1993-06-02 Device for controlling the luminous intensity of a lamp IT1271547B (en)

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)

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