JPS5524406A - Photosemiconductor switch circuit - Google Patents
Photosemiconductor switch circuitInfo
- Publication number
- JPS5524406A JPS5524406A JP9614078A JP9614078A JPS5524406A JP S5524406 A JPS5524406 A JP S5524406A JP 9614078 A JP9614078 A JP 9614078A JP 9614078 A JP9614078 A JP 9614078A JP S5524406 A JPS5524406 A JP S5524406A
- Authority
- JP
- Japan
- Prior art keywords
- ignition
- luminous
- scr1
- cathode
- gate
- 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
- Photo Coupler, Interrupter, Optical-To-Optical Conversion Devices (AREA)
Abstract
PURPOSE: To hold ignition sensitivity and dv/dt capacity compatible each other where resistance between gate and cathode of photo SCR is not given high at giving light ignition signals.
CONSTITUTION: A luminous element 3 is ignited and SCR1 is radiated to ignition from applying a negative pulse signal to the input of logical element for ignition of photo SCR 1. In this case a luminous element 6 is not luminous due to a presence of inverter 7, and a phototransistor 5 is kept off. There works only a resistance RGK consequently between gate and cathode of SCR1, and hence it operates at high light ignition sensitivity from keeping the resistance RGK high. When input signal C does not work, the element 3 is not luminous but the element 6 gets luminous. The phototransistor 5 is therefore turned on, SCR1 is shortcircuited between cathode and gate, and thus dv/dt capacity is extremely improved. The dv/dt capacity can therefore be ketp high without deteriorating ignition sensitivity.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9614078A JPS5524406A (en) | 1978-08-09 | 1978-08-09 | Photosemiconductor switch circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9614078A JPS5524406A (en) | 1978-08-09 | 1978-08-09 | Photosemiconductor switch circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5524406A true JPS5524406A (en) | 1980-02-21 |
Family
ID=14157074
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9614078A Pending JPS5524406A (en) | 1978-08-09 | 1978-08-09 | Photosemiconductor switch circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5524406A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4656539A (en) * | 1984-01-25 | 1987-04-07 | Sony Corporation | Method and apparatus with improved tracking control for recording a digital signal |
JPH01110780A (en) * | 1988-09-08 | 1989-04-27 | Semiconductor Res Found | Photocoupler |
JPH036849U (en) * | 1990-06-22 | 1991-01-23 | ||
US5017991A (en) * | 1984-03-22 | 1991-05-21 | Jun-Ichi Nishizawa | Light quenchable thyristor device |
US5027020A (en) * | 1989-10-10 | 1991-06-25 | Teledyne Industries, Inc. | Zero voltage switching AC relay circuit |
-
1978
- 1978-08-09 JP JP9614078A patent/JPS5524406A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4656539A (en) * | 1984-01-25 | 1987-04-07 | Sony Corporation | Method and apparatus with improved tracking control for recording a digital signal |
US5017991A (en) * | 1984-03-22 | 1991-05-21 | Jun-Ichi Nishizawa | Light quenchable thyristor device |
JPH01110780A (en) * | 1988-09-08 | 1989-04-27 | Semiconductor Res Found | Photocoupler |
US5027020A (en) * | 1989-10-10 | 1991-06-25 | Teledyne Industries, Inc. | Zero voltage switching AC relay circuit |
JPH036849U (en) * | 1990-06-22 | 1991-01-23 | ||
JPH0347336Y2 (en) * | 1990-06-22 | 1991-10-08 |
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