FR2437090A1 - Automatic supply disconnector for unattended electrical equipment - has sensor connected to amplifier initiating delay and relay circuit - Google Patents

Automatic supply disconnector for unattended electrical equipment - has sensor connected to amplifier initiating delay and relay circuit

Info

Publication number
FR2437090A1
FR2437090A1 FR7826959A FR7826959A FR2437090A1 FR 2437090 A1 FR2437090 A1 FR 2437090A1 FR 7826959 A FR7826959 A FR 7826959A FR 7826959 A FR7826959 A FR 7826959A FR 2437090 A1 FR2437090 A1 FR 2437090A1
Authority
FR
France
Prior art keywords
circuit
supply
electrical equipment
amplifier
relay circuit
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
FR7826959A
Other languages
French (fr)
Other versions
FR2437090B1 (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7826959A priority Critical patent/FR2437090A1/en
Publication of FR2437090A1 publication Critical patent/FR2437090A1/en
Application granted granted Critical
Publication of FR2437090B1 publication Critical patent/FR2437090B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0241—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where no transmission is received, e.g. out of range of the transmitter
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Keying Circuit Devices (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

The circuit switches off the electrical power supply to electrical equipment which is not actually being used. The supply would normally be from batteries for television, radio, telephone amplifiers etc., the circuit preventing unnecessary discharge if the user has forgotten to switch off the equipment. The circuit operates by sensing the output e.g. sound, from one of the items of equipment and after some given time after the disappearance of this disconnects the supply. The sensor (3) feeds an amplifier (1) whose output is taken to a loudspeaker (4) and to a four transistor amplifier and delay circuit which has a relay coil (27) load opening (28) the supply circuit in the absence of an input signal. Both circuits are powered from a battery (5) via a further relay (6, 7) initiated by a resetting push-button (8) associated with the sensor.
FR7826959A 1978-09-20 1978-09-20 Automatic supply disconnector for unattended electrical equipment - has sensor connected to amplifier initiating delay and relay circuit Granted FR2437090A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7826959A FR2437090A1 (en) 1978-09-20 1978-09-20 Automatic supply disconnector for unattended electrical equipment - has sensor connected to amplifier initiating delay and relay circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7826959A FR2437090A1 (en) 1978-09-20 1978-09-20 Automatic supply disconnector for unattended electrical equipment - has sensor connected to amplifier initiating delay and relay circuit

Publications (2)

Publication Number Publication Date
FR2437090A1 true FR2437090A1 (en) 1980-04-18
FR2437090B1 FR2437090B1 (en) 1981-10-02

Family

ID=9212822

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7826959A Granted FR2437090A1 (en) 1978-09-20 1978-09-20 Automatic supply disconnector for unattended electrical equipment - has sensor connected to amplifier initiating delay and relay circuit

Country Status (1)

Country Link
FR (1) FR2437090A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3354372A (en) * 1965-03-16 1967-11-21 Jack O Beasley Delay-responsive shut-off device for operationally-vibrating electric equipment
US3378775A (en) * 1964-08-19 1968-04-16 William T. Joseph Method and apparatus for controlling a television receiver
DE2008647A1 (en) * 1970-02-24 1971-09-09 Koplitz Weissgerber E Electrical switch-off device for an audio device
US3843929A (en) * 1967-10-16 1974-10-22 Magnavox Co Automatic t.v. shut-off device responsive to absence of sync. signal
DE2423055A1 (en) * 1974-05-13 1975-11-27 Klaus Porath Fa T.V. receiver switching off method - control quantity derived from voltage or current present only during reception

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3378775A (en) * 1964-08-19 1968-04-16 William T. Joseph Method and apparatus for controlling a television receiver
US3354372A (en) * 1965-03-16 1967-11-21 Jack O Beasley Delay-responsive shut-off device for operationally-vibrating electric equipment
US3843929A (en) * 1967-10-16 1974-10-22 Magnavox Co Automatic t.v. shut-off device responsive to absence of sync. signal
DE2008647A1 (en) * 1970-02-24 1971-09-09 Koplitz Weissgerber E Electrical switch-off device for an audio device
DE2423055A1 (en) * 1974-05-13 1975-11-27 Klaus Porath Fa T.V. receiver switching off method - control quantity derived from voltage or current present only during reception

Also Published As

Publication number Publication date
FR2437090B1 (en) 1981-10-02

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse