TW200511696A - Active EMI filter having no inductive current sensing device - Google Patents

Active EMI filter having no inductive current sensing device

Info

Publication number
TW200511696A
TW200511696A TW093115942A TW93115942A TW200511696A TW 200511696 A TW200511696 A TW 200511696A TW 093115942 A TW093115942 A TW 093115942A TW 93115942 A TW93115942 A TW 93115942A TW 200511696 A TW200511696 A TW 200511696A
Authority
TW
Taiwan
Prior art keywords
emi filter
sensing device
current sensing
inductive current
active emi
Prior art date
Application number
TW093115942A
Other languages
Chinese (zh)
Other versions
TWI265669B (en
Inventor
Jun Honda
Original Assignee
Int Rectifier Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Int Rectifier Corp filed Critical Int Rectifier Corp
Publication of TW200511696A publication Critical patent/TW200511696A/en
Application granted granted Critical
Publication of TWI265669B publication Critical patent/TWI265669B/en

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.
TW93115942A 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 TWI265669B (en)

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 true TW200511696A (en) 2005-03-16
TWI265669B 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)

* Cited by examiner, † Cited by third party
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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7764041B2 (en) * 2007-01-22 2010-07-27 Johnson Controls Technology Company System and method to extend synchronous operation of an active converter in a variable speed drive

Cited By (1)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
TWI265669B (en) 2006-11-01

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees