FR2272539A2 - Switch with power amplifier - has amplifier integrator stage resistor in series with contacts short circuited by finger - Google Patents

Switch with power amplifier - has amplifier integrator stage resistor in series with contacts short circuited by finger

Info

Publication number
FR2272539A2
FR2272539A2 FR7418032A FR7418032A FR2272539A2 FR 2272539 A2 FR2272539 A2 FR 2272539A2 FR 7418032 A FR7418032 A FR 7418032A FR 7418032 A FR7418032 A FR 7418032A FR 2272539 A2 FR2272539 A2 FR 2272539A2
Authority
FR
France
Prior art keywords
amplifier
finger
series
switch
power amplifier
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
FR7418032A
Other languages
French (fr)
Other versions
FR2272539B2 (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.)
Legrand SA
Original Assignee
Legrand SA
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 Legrand SA filed Critical Legrand SA
Priority to FR7418032A priority Critical patent/FR2272539A2/en
Publication of FR2272539A2 publication Critical patent/FR2272539A2/en
Application granted granted Critical
Publication of FR2272539B2 publication Critical patent/FR2272539B2/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
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/96—Touch switches
    • H03K17/962—Capacitive touch switches

Landscapes

  • Amplifiers (AREA)

Abstract

The switch has a power amplifier connected to a detector circuit controlled by a passive sensor plate touchable by a finger. There is a memory circuit between the detector circuit and power amplifier. The detector circuit has an amplifier integrator stage which is passive in the absence of a finger touch on the sensor plate and a detector which switches the amplifier at a predetermined charge of the stage. The amplifier integrator stage is connected to a switching resistor in series with two contacts which may be connected together under the control of an auxiliary transistor which is conductive in response to a finger touching another sensor plate.
FR7418032A 1974-05-24 1974-05-24 Switch with power amplifier - has amplifier integrator stage resistor in series with contacts short circuited by finger Granted FR2272539A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7418032A FR2272539A2 (en) 1974-05-24 1974-05-24 Switch with power amplifier - has amplifier integrator stage resistor in series with contacts short circuited by finger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7418032A FR2272539A2 (en) 1974-05-24 1974-05-24 Switch with power amplifier - has amplifier integrator stage resistor in series with contacts short circuited by finger

Publications (2)

Publication Number Publication Date
FR2272539A2 true FR2272539A2 (en) 1975-12-19
FR2272539B2 FR2272539B2 (en) 1978-08-25

Family

ID=9139213

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7418032A Granted FR2272539A2 (en) 1974-05-24 1974-05-24 Switch with power amplifier - has amplifier integrator stage resistor in series with contacts short circuited by finger

Country Status (1)

Country Link
FR (1) FR2272539A2 (en)

Also Published As

Publication number Publication date
FR2272539B2 (en) 1978-08-25

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