FR2260897A1 - Triac switching cct. - triac in series with load lamp controlled from bistable flip-flop supplied from rectifier diode - Google Patents

Triac switching cct. - triac in series with load lamp controlled from bistable flip-flop supplied from rectifier diode

Info

Publication number
FR2260897A1
FR2260897A1 FR7414581A FR7414581A FR2260897A1 FR 2260897 A1 FR2260897 A1 FR 2260897A1 FR 7414581 A FR7414581 A FR 7414581A FR 7414581 A FR7414581 A FR 7414581A FR 2260897 A1 FR2260897 A1 FR 2260897A1
Authority
FR
France
Prior art keywords
triac
flop
series
flip
cct
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.)
Granted
Application number
FR7414581A
Other languages
French (fr)
Other versions
FR2260897B3 (en
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.)
Insta Elektro GmbH and Co KG
Original Assignee
Insta Elektro GmbH and Co KG
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 Insta Elektro GmbH and Co KG filed Critical Insta Elektro GmbH and Co KG
Publication of FR2260897A1 publication Critical patent/FR2260897A1/en
Application granted granted Critical
Publication of FR2260897B3 publication Critical patent/FR2260897B3/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/13—Modifications for switching at zero crossing
    • H03K17/136—Modifications for switching at zero crossing in thyristor switches

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Electronic Switches (AREA)

Abstract

The triac switching circuit has its triac coupled in series with the load lamp across the a.c. supply. The triac's gate is connected to the output of a bistable flip-flop whose state is determined by a switching signal coming via an amplifier from a touch-plate. The flip-flop and amplifier receive their d.c. supplies from a rectifying diode and resistor coupled into the a.c. supply line. With this diode forward biased, the resistor forms a voltage divider with one or the other of the flip-flop's two collector resistors. Since the circuit acts as a 'zero voltage' switch, no HF blocking filters are necessary to avoid noise.
FR7414581A 1974-02-11 1974-04-26 Triac switching cct. - triac in series with load lamp controlled from bistable flip-flop supplied from rectifier diode Granted FR2260897A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742406457 DE2406457A1 (en) 1974-02-11 1974-02-11 CIRCUIT ARRANGEMENT, IN PARTICULAR ELECTRICAL INSTALLATION CIRCUIT, FOR SWITCHING ON AND OFF AN ELECTRICAL LOAD

Publications (2)

Publication Number Publication Date
FR2260897A1 true FR2260897A1 (en) 1975-09-05
FR2260897B3 FR2260897B3 (en) 1977-03-04

Family

ID=5907113

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7414581A Granted FR2260897A1 (en) 1974-02-11 1974-04-26 Triac switching cct. - triac in series with load lamp controlled from bistable flip-flop supplied from rectifier diode

Country Status (5)

Country Link
DE (1) DE2406457A1 (en)
FR (1) FR2260897A1 (en)
NL (1) NL7404390A (en)
NO (1) NO741152L (en)
SE (1) SE387210B (en)

Also Published As

Publication number Publication date
FR2260897B3 (en) 1977-03-04
DE2406457A1 (en) 1975-08-14
SE387210B (en) 1976-08-30
NL7404390A (en) 1975-08-13
NO741152L (en) 1975-08-12
SE7404536L (en) 1975-08-12

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Legal Events

Date Code Title Description
ST Notification of lapse