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GB1459235A - Switching circuit - Google Patents

Switching circuit

Info

Publication number
GB1459235A
GB1459235A GB6003273A GB6003273A GB1459235A GB 1459235 A GB1459235 A GB 1459235A GB 6003273 A GB6003273 A GB 6003273A GB 6003273 A GB6003273 A GB 6003273A GB 1459235 A GB1459235 A GB 1459235A
Authority
GB
United Kingdom
Prior art keywords
power
transistor
control
base
output
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.)
Expired
Application number
GB6003273A
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to GB6003273A priority Critical patent/GB1459235A/en
Publication of GB1459235A publication Critical patent/GB1459235A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • G01V3/088—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices operating with electric fields
    • 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

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Electromagnetism (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Control Of Electrical Variables (AREA)
  • Dc-Dc Converters (AREA)
  • Amplifiers (AREA)

Abstract

1459235 Touch responsive switching system MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 28 Dec 1973 60032/73 Heading G1N "Touch-plate" ON-OFF control of a power supply is effected by damping of the output of an oscillator connected through a pulse shaping amplifier to a flip-flop controlling a power transistor in series with the load Figs. 1, 2 (not shown). Many minor modifications are described such as Darlington pair, or parallel connected power transistors; power transistor serves also for stabilized supply Figs. 6 and 10 (not shown); the control transistor (TR7) may be strapped as a diode and either connected between the emitter and base of the power transistor or between its base and ground Fig. 11 (not shown). The arrangement may be used to control an audio power, output transistor.
GB6003273A 1973-12-28 1973-12-28 Switching circuit Expired GB1459235A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB6003273A GB1459235A (en) 1973-12-28 1973-12-28 Switching circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6003273A GB1459235A (en) 1973-12-28 1973-12-28 Switching circuit

Publications (1)

Publication Number Publication Date
GB1459235A true GB1459235A (en) 1976-12-22

Family

ID=10484873

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6003273A Expired GB1459235A (en) 1973-12-28 1973-12-28 Switching circuit

Country Status (1)

Country Link
GB (1) GB1459235A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2571908A1 (en) * 1984-10-17 1986-04-18 Honda Motor Co Ltd SWITCHING DEVICE OF PROXIMITY
FR2582410A1 (en) * 1983-11-22 1986-11-28 Honda Motor Co Ltd OBJECT DETECTION DEVICE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2582410A1 (en) * 1983-11-22 1986-11-28 Honda Motor Co Ltd OBJECT DETECTION DEVICE
FR2571908A1 (en) * 1984-10-17 1986-04-18 Honda Motor Co Ltd SWITCHING DEVICE OF PROXIMITY

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee