BE896913A - Dual incandescent lamp fitting - has two diodes in antiparallel to supply lamps alternately and produce third more light than direct connection - Google Patents

Dual incandescent lamp fitting - has two diodes in antiparallel to supply lamps alternately and produce third more light than direct connection

Info

Publication number
BE896913A
BE896913A BE0/210900A BE896913A BE896913A BE 896913 A BE896913 A BE 896913A BE 0/210900 A BE0/210900 A BE 0/210900A BE 896913 A BE896913 A BE 896913A BE 896913 A BE896913 A BE 896913A
Authority
BE
Belgium
Prior art keywords
lamps
supply
resistance
diodes
antiparallel
Prior art date
Application number
BE0/210900A
Other languages
Dutch (nl)
Original Assignee
Marchand Paul F
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 Marchand Paul F filed Critical Marchand Paul F
Priority to BE0/210900A priority Critical patent/BE896913A/en
Publication of BE896913A publication Critical patent/BE896913A/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K9/00—Lamps having two or more incandescent bodies separately heated

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

The circuit is used to supply two conventional filament lamps (f1, f2) from the a.c. mains (v). One terminal of each lamp is connected to the neutral supply, while the other terminals are fed via series diodes (d1, d2) and a parallel CR circuit (c1, r1) from the live supply. The series diodes conduct in opposite directions, so that current is only flowing in one lamp at any time. The capacitor value depends on the resistance of the lamps, e.g. a 9 microfarad capacitor is suitable for lamps with a cold resistance of 30 ohms. The resistance (r1) is only a discharge pre-caution for safety purposes, so it can be a high value compared to the lamp resistance. The lamps are mounted as close to each other as possible in a single casing to reduce the flickering effect. The light output from such a circuit is some 33% higher than from identical lamps fed directly from the mains.
BE0/210900A 1983-06-01 1983-06-01 Dual incandescent lamp fitting - has two diodes in antiparallel to supply lamps alternately and produce third more light than direct connection BE896913A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BE0/210900A BE896913A (en) 1983-06-01 1983-06-01 Dual incandescent lamp fitting - has two diodes in antiparallel to supply lamps alternately and produce third more light than direct connection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE0/210900A BE896913A (en) 1983-06-01 1983-06-01 Dual incandescent lamp fitting - has two diodes in antiparallel to supply lamps alternately and produce third more light than direct connection

Publications (1)

Publication Number Publication Date
BE896913A true BE896913A (en) 1983-10-03

Family

ID=3862178

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/210900A BE896913A (en) 1983-06-01 1983-06-01 Dual incandescent lamp fitting - has two diodes in antiparallel to supply lamps alternately and produce third more light than direct connection

Country Status (1)

Country Link
BE (1) BE896913A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0213495A3 (en) * 1985-08-15 1989-04-12 GTE Products Corporation Multi-level fuser lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0213495A3 (en) * 1985-08-15 1989-04-12 GTE Products Corporation Multi-level fuser lamp

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: MARCHAND PAUL F.

Effective date: 19840601