JPS5672528A - Control circuit of switcher - Google Patents

Control circuit of switcher

Info

Publication number
JPS5672528A
JPS5672528A JP14869679A JP14869679A JPS5672528A JP S5672528 A JPS5672528 A JP S5672528A JP 14869679 A JP14869679 A JP 14869679A JP 14869679 A JP14869679 A JP 14869679A JP S5672528 A JPS5672528 A JP S5672528A
Authority
JP
Japan
Prior art keywords
tally
diodes
input side
input
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
JP14869679A
Other languages
Japanese (ja)
Other versions
JPH0132690B2 (en
Inventor
Fumiyoshi Yano
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP14869679A priority Critical patent/JPS5672528A/en
Publication of JPS5672528A publication Critical patent/JPS5672528A/en
Publication of JPH0132690B2 publication Critical patent/JPH0132690B2/ja
Granted 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
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/687—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors
    • H03K17/693—Switching arrangements with several input- or output-terminals, e.g. multiplexers, distributors

Landscapes

  • Manipulation Of Pulses (AREA)
  • Electronic Switches (AREA)

Abstract

PURPOSE:To obtain a switcher control circuit which uses the control line and the tally line, by providing the reverse-current protective diodes on the input side of the latch circuit, and also providing the voltage shifting elements in the output side of the tally driving circuit. CONSTITUTION:The reverse-current protective diodes D1-Di are inserted into the input side of the latch circuit 2, Zener diodes Z1-Zi are inserted as voltage shifting elements into the output side of the tally driving circuit 3, and the control line and the tally line are used in common. And the bias voltage VD is applied to the input side of the latch circuit 2, but since it is grounded through the diodes D1-Di when the control buttons B1-Bi have been pushed, the input side of the latch circuit becomes ''low'', and its input is latched. Subsequently, a tally signal is returned from the tally driving circuit 3, and the tally lamp is turned on through the diodes Z1-Zi. In this case, an input of the latch input side is made to become ''high''.
JP14869679A 1979-11-16 1979-11-16 Control circuit of switcher Granted JPS5672528A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14869679A JPS5672528A (en) 1979-11-16 1979-11-16 Control circuit of switcher

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14869679A JPS5672528A (en) 1979-11-16 1979-11-16 Control circuit of switcher

Publications (2)

Publication Number Publication Date
JPS5672528A true JPS5672528A (en) 1981-06-16
JPH0132690B2 JPH0132690B2 (en) 1989-07-10

Family

ID=15458548

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14869679A Granted JPS5672528A (en) 1979-11-16 1979-11-16 Control circuit of switcher

Country Status (1)

Country Link
JP (1) JPS5672528A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57196880A (en) * 1981-05-26 1982-12-02 Nec Corp Rotating motion generating mechanism
JPH03245210A (en) * 1990-02-22 1991-10-31 Nec Corp Switcher control system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5242061A (en) * 1972-09-29 1977-04-01 Siemens Ag Circuit for connecting switching circuit
JPS55112034A (en) * 1979-02-21 1980-08-29 Matsushita Electric Ind Co Ltd Selection circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5242061A (en) * 1972-09-29 1977-04-01 Siemens Ag Circuit for connecting switching circuit
JPS55112034A (en) * 1979-02-21 1980-08-29 Matsushita Electric Ind Co Ltd Selection circuit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57196880A (en) * 1981-05-26 1982-12-02 Nec Corp Rotating motion generating mechanism
JPH0219983B2 (en) * 1981-05-26 1990-05-07 Nippon Electric Co
JPH03245210A (en) * 1990-02-22 1991-10-31 Nec Corp Switcher control system
JP2595747B2 (en) * 1990-02-22 1997-04-02 日本電気株式会社 Switcher control method

Also Published As

Publication number Publication date
JPH0132690B2 (en) 1989-07-10

Similar Documents

Publication Publication Date Title
JPS5483341A (en) Digital integrated circuit
JPS5672528A (en) Control circuit of switcher
JPS5262067A (en) Current square-law circuit
JPS5335465A (en) Differential input type trigger circuit
JPS5344135A (en) Function test equipment for logical operation circuit
JPS5341969A (en) Analogue signal selecting circuit
JPS5345157A (en) Anti-time limit circuit
JPS5383599A (en) Display circuit
JPS5224436A (en) Key input unit
JPS53103338A (en) Large-scale integrated circuit
JPS5666982A (en) Video coupling device
JPS5376850A (en) Integrating driving circuit and display device of vehicles
JPS5352348A (en) Cmos input circuit
JPS54133166A (en) Electronic watch
JPS5398815A (en) Scale voltage memory circuit
JPS5313449A (en) Interface circuit
JPS57142077A (en) Boarder signal generator
JPS57132408A (en) Protecting circuit for output of operational amplifier
JPS526936A (en) Invertor circuit
JPS5491155A (en) Display input circuit
JPS5521624A (en) Read-in circuit for fluctuating signal
JPS55147035A (en) Three phase pulse generating circuit
JPS5235954A (en) Self-operation confirming circuit
JPS5640936A (en) Initial diagnosis system for multiplex bus constitution system
JPS5748832A (en) Signal selection circuit