JPS54131752A - Touch switch circuit - Google Patents

Touch switch circuit

Info

Publication number
JPS54131752A
JPS54131752A JP3990578A JP3990578A JPS54131752A JP S54131752 A JPS54131752 A JP S54131752A JP 3990578 A JP3990578 A JP 3990578A JP 3990578 A JP3990578 A JP 3990578A JP S54131752 A JPS54131752 A JP S54131752A
Authority
JP
Japan
Prior art keywords
transistor
output
resistor
diode
input terminal
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
JP3990578A
Other languages
Japanese (ja)
Other versions
JPH0160972B2 (en
Inventor
Koichi Hayamizu
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP3990578A priority Critical patent/JPS54131752A/en
Publication of JPS54131752A publication Critical patent/JPS54131752A/en
Publication of JPH0160972B2 publication Critical patent/JPH0160972B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Electronic Switches (AREA)

Abstract

PURPOSE: To provide the subject circuit wherein the leak limitation is relaxed by the circuit structure of diode, means for interrupting the power source of the touch portion by being added to the circuit structure, and further means for setting the signal bypass for controlling the output even when the power source of the touch portion has been interrupted.
CONSTITUTION: In a state where no signal is supplied to an input terminal RM, one's body or the like is not in contact therewith, and no resistor RT is present, transistors Q1 through Q4, and Q6 become nonconductive, but transistor Q5 becomes conductive, and no output appears on an output terminal Y. When the resistor RT is connected and the transistor Q2 becomes conductive, transistors Q3 and Q4 become conductive and an output appears on the output terminal Y. When a signal of making the transistor Q1 conductive is supplied to the input terminal RM in a state where no resistor RT is present, an output appears on the input terminal Y. The diode D1 bypasses the leak current of the transistor Q1 to suppress the leak current of the transistor Q2. The diode D2 prevents the transistor Q2 from being driven by the leak current.
COPYRIGHT: (C)1979,JPO&Japio
JP3990578A 1978-04-04 1978-04-04 Touch switch circuit Granted JPS54131752A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3990578A JPS54131752A (en) 1978-04-04 1978-04-04 Touch switch circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3990578A JPS54131752A (en) 1978-04-04 1978-04-04 Touch switch circuit

Publications (2)

Publication Number Publication Date
JPS54131752A true JPS54131752A (en) 1979-10-13
JPH0160972B2 JPH0160972B2 (en) 1989-12-26

Family

ID=12565965

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3990578A Granted JPS54131752A (en) 1978-04-04 1978-04-04 Touch switch circuit

Country Status (1)

Country Link
JP (1) JPS54131752A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102468068A (en) * 2010-11-04 2012-05-23 浙江万盛电气有限公司 Light touch electronic power switch circuit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0618191U (en) * 1992-08-21 1994-03-08 石川島播磨重工業株式会社 Swivel window

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102468068A (en) * 2010-11-04 2012-05-23 浙江万盛电气有限公司 Light touch electronic power switch circuit

Also Published As

Publication number Publication date
JPH0160972B2 (en) 1989-12-26

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