JPS5571322A - Switch input circuit - Google Patents
Switch input circuitInfo
- Publication number
- JPS5571322A JPS5571322A JP14419578A JP14419578A JPS5571322A JP S5571322 A JPS5571322 A JP S5571322A JP 14419578 A JP14419578 A JP 14419578A JP 14419578 A JP14419578 A JP 14419578A JP S5571322 A JPS5571322 A JP S5571322A
- Authority
- JP
- Japan
- Prior art keywords
- level
- turned
- becomes high
- switch
- 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.)
- Pending
Links
Landscapes
- Pulse Circuits (AREA)
- Electronic Switches (AREA)
- Logic Circuits (AREA)
Abstract
PURPOSE: To reduce the duty ratio to reduce power consumption by connecting a switch to the output of a clock-driven complementary MIS inverter to convert ON/OFF signals of the switch to intermittent voltage signals.
CONSTITUTION: When switch SW is turned on and timing pulse ϕ becomes high- level (0V), p-channel MISFETQ2 is turned off and n-channel MISFETQ1 is turned on, however, complementary MIS inverter outpt P becomes high-level forcedly. Therefore, the FF is set synchronously with rise of ϕ, and output Q is inverted to a low level. Next, when ϕ becomes high-level, the FF holds the state as it is if SW is turned on. When ϕ becomes high-level after SW is turned off, output P is changed to a low level by turning-on of FETQ1, and the set input and the reset input of the FF become high-level and low-level respectively, and the FF is reset.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14419578A JPS5571322A (en) | 1978-11-24 | 1978-11-24 | Switch input circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14419578A JPS5571322A (en) | 1978-11-24 | 1978-11-24 | Switch input circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5571322A true JPS5571322A (en) | 1980-05-29 |
Family
ID=15356413
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14419578A Pending JPS5571322A (en) | 1978-11-24 | 1978-11-24 | Switch input circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5571322A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57809A (en) * | 1980-05-31 | 1982-01-05 | Matsushita Electric Works Ltd | Switch input circuit |
JPS57143923A (en) * | 1981-02-28 | 1982-09-06 | Seiko Instr & Electronics Ltd | Switch circuit |
JPS58178631A (en) * | 1982-04-12 | 1983-10-19 | Oki Electric Ind Co Ltd | Input circuit of signal |
JPS5975721A (en) * | 1982-10-25 | 1984-04-28 | Toshiba Corp | Signal input circuit and its controlling method |
JP2008211498A (en) * | 2007-02-26 | 2008-09-11 | Saxa Inc | Electronic apparatus |
-
1978
- 1978-11-24 JP JP14419578A patent/JPS5571322A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57809A (en) * | 1980-05-31 | 1982-01-05 | Matsushita Electric Works Ltd | Switch input circuit |
JPS57143923A (en) * | 1981-02-28 | 1982-09-06 | Seiko Instr & Electronics Ltd | Switch circuit |
JPH033966B2 (en) * | 1981-02-28 | 1991-01-21 | Seiko Instr & Electronics | |
JPS58178631A (en) * | 1982-04-12 | 1983-10-19 | Oki Electric Ind Co Ltd | Input circuit of signal |
JPS5975721A (en) * | 1982-10-25 | 1984-04-28 | Toshiba Corp | Signal input circuit and its controlling method |
JPH0446013B2 (en) * | 1982-10-25 | 1992-07-28 | Tokyo Shibaura Electric Co | |
JP2008211498A (en) * | 2007-02-26 | 2008-09-11 | Saxa Inc | Electronic apparatus |
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