JPH02133148U - - Google Patents
Info
- Publication number
- JPH02133148U JPH02133148U JP3942189U JP3942189U JPH02133148U JP H02133148 U JPH02133148 U JP H02133148U JP 3942189 U JP3942189 U JP 3942189U JP 3942189 U JP3942189 U JP 3942189U JP H02133148 U JPH02133148 U JP H02133148U
- Authority
- JP
- Japan
- Prior art keywords
- photocoupler
- switching transistor
- light receiving
- base
- voltage
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 238000009499 grossing Methods 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Measurement Of Current Or Voltage (AREA)
- Emergency Protection Circuit Devices (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3942189U JPH02133148U (cs) | 1989-04-03 | 1989-04-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3942189U JPH02133148U (cs) | 1989-04-03 | 1989-04-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02133148U true JPH02133148U (cs) | 1990-11-05 |
Family
ID=31548317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3942189U Pending JPH02133148U (cs) | 1989-04-03 | 1989-04-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02133148U (cs) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6473259A (en) * | 1987-09-14 | 1989-03-17 | Nec Corp | Instantaneous interruption detection for ac power supply |
-
1989
- 1989-04-03 JP JP3942189U patent/JPH02133148U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6473259A (en) * | 1987-09-14 | 1989-03-17 | Nec Corp | Instantaneous interruption detection for ac power supply |
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