TWI265669B - Filter for an electrical power system, method for reducing EMI in an electrical power circuit with an active EMI filter, and active EMI filter - Google Patents
Filter for an electrical power system, method for reducing EMI in an electrical power circuit with an active EMI filter, and active EMI filterInfo
- Publication number
- TWI265669B TWI265669B TW93115942A TW93115942A TWI265669B TW I265669 B TWI265669 B TW I265669B TW 93115942 A TW93115942 A TW 93115942A TW 93115942 A TW93115942 A TW 93115942A TW I265669 B TWI265669 B TW I265669B
- Authority
- TW
- Taiwan
- Prior art keywords
- filter
- electrical power
- emi
- active
- emi filter
- Prior art date
Links
Landscapes
- Filters And Equalizers (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
An active EMI filter senses current in a ground line as a voltage across a capacitor coupled to the ground line. The EMI filter senses common mode voltage and determines a difference between the common mode voltage and noise to provide an output to the ground line to reduce the difference.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US47626303P | 2003-06-04 | 2003-06-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200511696A TW200511696A (en) | 2005-03-16 |
TWI265669B true TWI265669B (en) | 2006-11-01 |
Family
ID=38122283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW93115942A TWI265669B (en) | 2003-06-04 | 2004-06-03 | Filter for an electrical power system, method for reducing EMI in an electrical power circuit with an active EMI filter, and active EMI filter |
Country Status (1)
Country | Link |
---|---|
TW (1) | TWI265669B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI383577B (en) * | 2007-01-22 | 2013-01-21 | Johnson Controls Tech Co | Common mode and differential mode filter for variable speed drive and chiller system having input filter for filtering common mode and differential mode currents |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI805423B (en) * | 2021-06-28 | 2023-06-11 | 立錡科技股份有限公司 | Switching power converter and active emi filter circuit thereof |
-
2004
- 2004-06-03 TW TW93115942A patent/TWI265669B/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI383577B (en) * | 2007-01-22 | 2013-01-21 | Johnson Controls Tech Co | Common mode and differential mode filter for variable speed drive and chiller system having input filter for filtering common mode and differential mode currents |
Also Published As
Publication number | Publication date |
---|---|
TW200511696A (en) | 2005-03-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |