JPH0321999U - - Google Patents
Info
- Publication number
- JPH0321999U JPH0321999U JP1989082814U JP8281489U JPH0321999U JP H0321999 U JPH0321999 U JP H0321999U JP 1989082814 U JP1989082814 U JP 1989082814U JP 8281489 U JP8281489 U JP 8281489U JP H0321999 U JPH0321999 U JP H0321999U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- base
- resistors
- circuit
- transistors
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 3
- 230000006866 deterioration Effects 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Control Of Positive-Displacement Air Blowers (AREA)
- Control Of Direct Current Motors (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1989082814U JPH0729757Y2 (ja) | 1989-07-14 | 1989-07-14 | 冷却ファンの機能低下検出回路 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1989082814U JPH0729757Y2 (ja) | 1989-07-14 | 1989-07-14 | 冷却ファンの機能低下検出回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0321999U true JPH0321999U (zh) | 1991-03-06 |
JPH0729757Y2 JPH0729757Y2 (ja) | 1995-07-05 |
Family
ID=31629955
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1989082814U Expired - Fee Related JPH0729757Y2 (ja) | 1989-07-14 | 1989-07-14 | 冷却ファンの機能低下検出回路 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0729757Y2 (zh) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5212437U (zh) * | 1975-07-14 | 1977-01-28 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5212437B2 (zh) * | 1971-10-15 | 1977-04-07 |
-
1989
- 1989-07-14 JP JP1989082814U patent/JPH0729757Y2/ja not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5212437U (zh) * | 1975-07-14 | 1977-01-28 |
Also Published As
Publication number | Publication date |
---|---|
JPH0729757Y2 (ja) | 1995-07-05 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |