Filter apparatus and power supply system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10447225
APP PUB NO 20180048223A1
SERIAL NO

15794817

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A filter apparatus, which includes a feedback active common-mode filter and a feed-forward active common-mode filter, the feedback active common-mode filter includes a common-mode noise detection component and a first filter circuit, and the feed-forward active common-mode filter includes the common-mode noise detection component and a second filter circuit, where the first filter circuit is connected between the common-mode noise detection component and the device, and performs feedback filtering on a first common-mode noise signal, to obtain a second common-mode noise signal; the common-mode noise detection component is connected between the first filter circuit and the second filter circuit, detects the second common-mode noise signal, and provides the second filter circuit with the second common-mode noise signal; and the second filter circuit is connected between an external power source and the common-mode noise detection component, and performs feed-forward filtering on the second common-mode noise signal.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
HUAWEI TECHNOLOGIES CO LTD518129 \U3001 BANTIAN HUAWEI HEADQUARTERS OFFICE BUILDING LONGGANG DISTRICT GUANGDONG SHENZHEN SHENZHEN CITY GUANGDONG PROVINCE 518129

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gao, Yongbing Shanghai, CN 47 60
Pei, Changsheng Shenzhen, CN 14 69
Zhang, Heling Shanghai, CN 1 3

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Apr 15, 2027
11.5 Year Payment $7400.00 $3700.00 $1850.00 Apr 15, 2031
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00