JPS6447123A - Solid-state relay - Google Patents
Solid-state relayInfo
- Publication number
- JPS6447123A JPS6447123A JP62203410A JP20341087A JPS6447123A JP S6447123 A JPS6447123 A JP S6447123A JP 62203410 A JP62203410 A JP 62203410A JP 20341087 A JP20341087 A JP 20341087A JP S6447123 A JPS6447123 A JP S6447123A
- Authority
- JP
- Japan
- Prior art keywords
- triac
- photo
- turned
- main
- vth
- 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 ensure turn-off of a photo triac in a photocoupler when a main triac is turned on by inserting an anti-parallel circuit of semiconductor elements in series between the triac and the photo triac. CONSTITUTION:With a signal VIN is inputted, a lightemitting diode 13 of a photocoupler 4 is lighted, a photo triac 14 is turned on and a current ig flows as a gate current of the main triac. Thus, the main triac 7 is triggered and turned on and power is supplied to a load 3 from an AC power supply 2. In this case, the threshold voltage (VTH) of the circuit at the side of the photo triac 14 is the sum of the VTH of the photo triac 14 and the VTH of the diodes 6 connected in anti-parallel and is increased more than the on-voltage of the main triac, no current ig flows. Thus, no commutation mode exists in the photo triac 14 at the voltage inversion of the power supply 2 and the photo triac 14 is surely turned off without mis-ignition.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62203410A JPS6447123A (en) | 1987-08-18 | 1987-08-18 | Solid-state relay |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62203410A JPS6447123A (en) | 1987-08-18 | 1987-08-18 | Solid-state relay |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6447123A true JPS6447123A (en) | 1989-02-21 |
Family
ID=16473606
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62203410A Pending JPS6447123A (en) | 1987-08-18 | 1987-08-18 | Solid-state relay |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6447123A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19710484C2 (en) * | 1996-03-13 | 2001-07-19 | Omron Tateisi Electronics Co | Contactless relay |
-
1987
- 1987-08-18 JP JP62203410A patent/JPS6447123A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19710484C2 (en) * | 1996-03-13 | 2001-07-19 | Omron Tateisi Electronics Co | Contactless relay |
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