JPS6159911A - Changeover switch circuit - Google Patents

Changeover switch circuit

Info

Publication number
JPS6159911A
JPS6159911A JP18214884A JP18214884A JPS6159911A JP S6159911 A JPS6159911 A JP S6159911A JP 18214884 A JP18214884 A JP 18214884A JP 18214884 A JP18214884 A JP 18214884A JP S6159911 A JPS6159911 A JP S6159911A
Authority
JP
Japan
Prior art keywords
turned
switch
route
7b
6b
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.)
Pending
Application number
JP18214884A
Inventor
Fumio Hamada
Original Assignee
Nec 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 Nec Corp filed Critical Nec Corp
Priority to JP18214884A priority Critical patent/JPS6159911A/en
Publication of JPS6159911A publication Critical patent/JPS6159911A/en
Application status is Pending legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K17/00Electronic switching or gating, i.e. not by contact-making or -braking
    • H03K17/51Electronic switching or gating, i.e. not by contact-making or -braking characterised by the components used
    • H03K17/56Electronic switching or gating, i.e. not by contact-making or -braking characterised by the components used using semiconductor devices
    • H03K17/687Electronic switching or gating, i.e. not by contact-making or -braking characterised by the components used using semiconductor devices using field-effect transistors

Abstract

PURPOSE:To prevent the operation of other changeover switch from being disabled even if one changeover switch of plural routes is faulty by constituting switch through the combination of an enhancement FET and a depletion FET. CONSTITUTION:When a negative voltage is fed to a control terminal 5, depletion FETs 6b, 7b are turned on, an enhancement FET8b is turned off and a signal inputted to a input terminal 3 is outputted to an output terminal 4. When a positive voltage is impressed to the terminal 5 conversely, the FETs 6b, 7b are turned off, the FET8b is turned on and no input signal is outputted to the output terminal 4. Since the FETs 6b, 7b are turned off at interruption, the impedance viewed from the terminals 3, 4 is high. Thus, in using the titled circuit as a switching circuit, since the effect on the other route is negligibly small, the switch of the active route has only to be energized by the power supply of the active route and the switch of the standby route has only to be energized by the power supply of the standby route.
JP18214884A 1984-08-30 1984-08-30 Changeover switch circuit Pending JPS6159911A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18214884A JPS6159911A (en) 1984-08-30 1984-08-30 Changeover switch circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18214884A JPS6159911A (en) 1984-08-30 1984-08-30 Changeover switch circuit

Publications (1)

Publication Number Publication Date
JPS6159911A true JPS6159911A (en) 1986-03-27

Family

ID=16113196

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18214884A Pending JPS6159911A (en) 1984-08-30 1984-08-30 Changeover switch circuit

Country Status (1)

Country Link
JP (1) JPS6159911A (en)

Cited By (108)

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JPS55132281A (en) * 1979-04-04 1980-10-14 Canon Inc Liquid jet recording device
JPS6393217A (en) * 1986-10-07 1988-04-23 Fuji Electric Co Ltd Analog switch circuit
JPH02127815A (en) * 1988-11-08 1990-05-16 Matsushita Electric Ind Co Ltd Thin film transistor switch circuit and its drive method
EP0580283A2 (en) 1992-06-05 1994-01-26 Seiko Epson Corporation Ink jet head and method of manufacturing thereof
EP0627807A2 (en) * 1993-05-27 1994-12-07 Fujitsu Limited Power line connection circuit and power line switch IC for the same
US5415686A (en) * 1993-04-07 1995-05-16 Canon Kabushiki Kaisha Ink, ink-jet recording method making use of the same and instrument provided with the ink
US5455998A (en) * 1991-12-02 1995-10-10 Matsushita Electric Industrial Co., Ltd. Method for manufacturing an ink jet head in which droplets of conductive ink are expelled
EP0697445A2 (en) 1994-07-11 1996-02-21 Canon Kabushiki Kaisha Liquid composition and ink set, and image-forming process and apparatus using the same
JPH0888551A (en) * 1994-02-28 1996-04-02 Sgs Thomson Microelettronica Spa Electronic switch
US5534900A (en) * 1990-09-21 1996-07-09 Seiko Epson Corporation Ink-jet recording apparatus
US5563634A (en) * 1993-07-14 1996-10-08 Seiko Epson Corporation Ink jet head drive apparatus and drive method, and a printer using these
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US5644341A (en) * 1993-07-14 1997-07-01 Seiko Epson Corporation Ink jet head drive apparatus and drive method, and a printer using these
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US6164759A (en) * 1990-09-21 2000-12-26 Seiko Epson Corporation Method for producing an electrostatic actuator and an inkjet head using it
US6168263B1 (en) 1990-09-21 2001-01-02 Seiko Epson Corporation Ink jet recording apparatus
US6174354B1 (en) 1995-04-07 2001-01-16 Canon Kabushiki Kaisha Ink, ink-jet recording process and apparatus using the same
US6174038B1 (en) 1996-03-07 2001-01-16 Seiko Epson Corporation Ink jet printer and drive method therefor
US6186611B1 (en) 1995-08-18 2001-02-13 Matsushita Electric Industrial Co., Ltd. Gradation record control apparatus for ink jet printer
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US6328421B1 (en) 1995-08-22 2001-12-11 Nec Corporation Fluid drop projecting head using taper-shaped chamber for generating a converging surface wave
US6331043B1 (en) 1997-06-06 2001-12-18 Canon Kabushiki Kaisha Liquid discharging method, a liquid discharge head, and a liquid discharger apparatus
US6342096B1 (en) 1998-02-04 2002-01-29 Canon Kabushiki Kaisha Ink-jet recording method and method for improving tone property of image
US6341855B1 (en) 1998-06-30 2002-01-29 Canon Kabushiki Kaisha Ink-jet recording method and apparatus thereof
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US6436301B1 (en) 1998-04-16 2002-08-20 Canon Kabushiki Kaisha Method for manufacturing a liquid discharge head
US6450615B2 (en) 1997-02-19 2002-09-17 Nec Corporation Ink jet printing apparatus and method using a pressure generating device to induce surface waves in an ink meniscus
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WO2004007205A1 (en) 2002-07-16 2004-01-22 Ricoh Company, Ltd. Head controller, inkjet recording apparatus, and image recording apparatus that prevent degradation in image quality due to environmental temperature changes
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US6834940B2 (en) 2002-04-04 2004-12-28 Canon Kabushiki Kaisha Liquid discharge head and recording apparatus provided with the liquid discharge head
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Cited By (134)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55132281A (en) * 1979-04-04 1980-10-14 Canon Inc Liquid jet recording device
JPH05217B2 (en) * 1979-04-04 1993-01-05 Canon Kk
JPS6393217A (en) * 1986-10-07 1988-04-23 Fuji Electric Co Ltd Analog switch circuit
JPH02127815A (en) * 1988-11-08 1990-05-16 Matsushita Electric Ind Co Ltd Thin film transistor switch circuit and its drive method
US5534900A (en) * 1990-09-21 1996-07-09 Seiko Epson Corporation Ink-jet recording apparatus
US6164759A (en) * 1990-09-21 2000-12-26 Seiko Epson Corporation Method for producing an electrostatic actuator and an inkjet head using it
US6168263B1 (en) 1990-09-21 2001-01-02 Seiko Epson Corporation Ink jet recording apparatus
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US5455998A (en) * 1991-12-02 1995-10-10 Matsushita Electric Industrial Co., Ltd. Method for manufacturing an ink jet head in which droplets of conductive ink are expelled
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