JPH01163421U - - Google Patents
Info
- Publication number
- JPH01163421U JPH01163421U JP5615988U JP5615988U JPH01163421U JP H01163421 U JPH01163421 U JP H01163421U JP 5615988 U JP5615988 U JP 5615988U JP 5615988 U JP5615988 U JP 5615988U JP H01163421 U JPH01163421 U JP H01163421U
- Authority
- JP
- Japan
- Prior art keywords
- reference voltage
- electromotive force
- back electromotive
- filter
- air purifier
- 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 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
- Ventilation (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5615988U JPH0545373Y2 (en]) | 1988-04-26 | 1988-04-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5615988U JPH0545373Y2 (en]) | 1988-04-26 | 1988-04-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01163421U true JPH01163421U (en]) | 1989-11-14 |
| JPH0545373Y2 JPH0545373Y2 (en]) | 1993-11-19 |
Family
ID=31282041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5615988U Expired - Lifetime JPH0545373Y2 (en]) | 1988-04-26 | 1988-04-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0545373Y2 (en]) |
-
1988
- 1988-04-26 JP JP5615988U patent/JPH0545373Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0545373Y2 (en]) | 1993-11-19 |