GB1432453A - Touch actuated electronic switch - Google Patents

Touch actuated electronic switch

Info

Publication number
GB1432453A
GB1432453A GB3822673A GB3822673A GB1432453A GB 1432453 A GB1432453 A GB 1432453A GB 3822673 A GB3822673 A GB 3822673A GB 3822673 A GB3822673 A GB 3822673A GB 1432453 A GB1432453 A GB 1432453A
Authority
GB
United Kingdom
Prior art keywords
amplifier
input
aug
electronic switch
touch
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
GB3822673A
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.)
Magic Dot Inc
Original Assignee
Magic Dot Inc
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 Magic Dot Inc filed Critical Magic Dot Inc
Publication of GB1432453A publication Critical patent/GB1432453A/en
Expired 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)
  • Electronic Switches (AREA)
  • Dc-Dc Converters (AREA)

Abstract

1432453 Touch switches MAGIC DOT Inc 13 Aug 1973 [28 Aug 1972] 38226/73 Heading G1N The touch plate is connected to the input 52 of an A.C. energized amplifier 12 and normally floats at about ten volts (and power frequency) above earth ground. When touched the body capacity charging currents cause an output signal which is rectified at 45 to charge a storage (smoothing) capacitor at the input of a switching amplifier 30. A transistor amplifier and switching circuit is illustrated in Fig. 4 (not shown). In the first stage amplifier 12 the emitter is connected by a resistor to the base input circuit to provide the floating voltage. The amplifier 30 may include an F.E.T. input (not shown). The power supply transformer may be replaced by a potential divider Fig. 3 (not shown).
GB3822673A 1972-08-28 1973-08-13 Touch actuated electronic switch Expired GB1432453A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US28404372A 1972-08-28 1972-08-28

Publications (1)

Publication Number Publication Date
GB1432453A true GB1432453A (en) 1976-04-14

Family

ID=23088646

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3822673A Expired GB1432453A (en) 1972-08-28 1973-08-13 Touch actuated electronic switch

Country Status (8)

Country Link
JP (1) JPS4959975A (en)
CA (1) CA1013832A (en)
DE (1) DE2343193A1 (en)
FR (1) FR2198321B1 (en)
GB (1) GB1432453A (en)
IL (1) IL42906A (en)
IT (1) IT994644B (en)
ZA (1) ZA735862B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2190254A (en) * 1986-05-07 1987-11-11 Duracell Int Condition responsive switching circuit

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1466304B2 (en) * 1964-10-31 1969-09-11 Siemens AG, Berlin und München, 8520 Erlangen Device for generating a signaling or control voltage
DE1462527A1 (en) * 1966-12-20 1969-01-09 Hans Duenges Touch switch for shop window advertising

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2190254A (en) * 1986-05-07 1987-11-11 Duracell Int Condition responsive switching circuit

Also Published As

Publication number Publication date
IL42906A (en) 1976-08-31
FR2198321B1 (en) 1979-01-26
AU5928373A (en) 1975-02-20
IL42906A0 (en) 1973-11-28
DE2343193A1 (en) 1974-03-14
FR2198321A1 (en) 1974-03-29
ZA735862B (en) 1974-08-28
IT994644B (en) 1975-10-20
CA1013832A (en) 1977-07-12
JPS4959975A (en) 1974-06-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee