JPS6444120A - Solid-state relay - Google Patents
Solid-state relayInfo
- Publication number
- JPS6444120A JPS6444120A JP62200388A JP20038887A JPS6444120A JP S6444120 A JPS6444120 A JP S6444120A JP 62200388 A JP62200388 A JP 62200388A JP 20038887 A JP20038887 A JP 20038887A JP S6444120 A JPS6444120 A JP S6444120A
- Authority
- JP
- Japan
- Prior art keywords
- mosfet
- input signal
- photodetection
- voltage
- pvd
- 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
- Electronic Switches (AREA)
Abstract
PURPOSE:To decrease heating by adopting an enhancement MOSFET for an output MOSFET and using a backup battery so as to turn on the MOSFET in the absence of an input signal and turning off the MOSFET by a photodetection output in the presence of an input signal so as to reduce the power consumption. CONSTITUTION:When no input signal is supplied, a LED 1 is not lighted and a PVD(photo voltaic diode) 2 applies no photodetection voltage. Thus, a transistor(TR) 4 is turned off, a voltage V of a battery 5 is fed to a gate of a MOSFET 7 via a resistor 6 to turn on the MOSFET 7. When an input signal is fed, the LED 1 is lighted and the light from the LED 1 is received by the PVD 2, the PVD 2 applies a photodetection voltage and since the photodetection voltage is applied to a base of the TR 4, the TR 4 is turned on and the gate of the MOSFET 7 is brought into a low potential to turn off the MOSFET 7.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62200388A JPS6444120A (en) | 1987-08-11 | 1987-08-11 | Solid-state relay |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62200388A JPS6444120A (en) | 1987-08-11 | 1987-08-11 | Solid-state relay |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6444120A true JPS6444120A (en) | 1989-02-16 |
Family
ID=16423495
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62200388A Pending JPS6444120A (en) | 1987-08-11 | 1987-08-11 | Solid-state relay |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6444120A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05191248A (en) * | 1992-01-14 | 1993-07-30 | Matsushita Electric Works Ltd | Optical coupling relay circuit |
-
1987
- 1987-08-11 JP JP62200388A patent/JPS6444120A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05191248A (en) * | 1992-01-14 | 1993-07-30 | Matsushita Electric Works Ltd | Optical coupling relay circuit |
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