ACTIVE COMMON-MODE FILTER - UNIV HOKKAIDO NAT UNIV CORP

Title:

ACTIVE COMMON-MODE FILTER

Document Type and Number:

WIPO Patent Application WO/2013/008925

Kind Code:

A1

Abstract:

The present invention has a structure that passes differential inputs A1 (positive electrode input) and B1 (negative electrode input) through transconductance amplifiers (50-80), combining an internal positive electrode signal and an internal negative electrode signal. The transconductance amplifiers (50, 60, 70, 80) cancel out a common-mode signal component, strengthen a normal-mode signal component, and perform a function equivalent to a common-mode choke coil. The invention also controls the characteristics and capacitors (91, 92) of the transconductance amplifiers, allowing control of gain and bandwidth.

Inventors:

IKEBE MASAYUKI
KONDOU AKIRA

Application Number:

PCT/JP2012/067976

Publication Date:

January 17, 2013

Filing Date:

July 13, 2012

Export Citation:

Click for automatic bibliography generation Help

Assignee:

UNIV HOKKAIDO NAT UNIV CORP (JP)
IKEBE MASAYUKI
KONDOU AKIRA

International Classes:

H03H11/08

Domestic Patent References:

WO2000044090A1

2000-07-27

Foreign References:

JP2010068165A	2010-03-25
JP2008508775A	2008-03-21
JP2001332959A	2001-11-30

Attorney, Agent or Firm:

HASEGAWA Yoshiki et al. (JP)
Yoshiki Hasegawa (JP)

Download PDF:

View/Download PDF PDF Help

Claims:

Previous Patent: GAS COOLER, GASIFICATION FURNACE, AND INTEGRATED GASIFICATION COMBINED CYCLE DEVICE FOR CARBON-CONTA...

Next Patent: TIRE