Control circuit with high power factor and AC/DC converter

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12021449
APP PUB NO 20220216783A1
SERIAL NO

17702353

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A high power factor control circuit is disclosed, which is used in an AC/DC converter. The converter includes a rectification module, a conversion module and a load. The rectification module receives AC power and rectifies it into a DC current, and the conversion module converts the DC current to drive power as desired by the load and provides it to the load. The conversion module includes a conversion element including an inductive element and a switching element. The control circuit includes a peak limiting signal generator and a switching element control module. The peak limiting signal generator receives a reference signal and produces at least one peak limiting signal from a sample signal. The switching element control module is configured to control switching of the switching element so that, within at least half a line-frequency period, a value of the ripple in the output current flowing through the load is not greater than a limit value.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
SHANGHAI BRIGHT POWER SEMICONDUCTOR CO LTDROOM 102 BUILDING 2 AND FLOOR 9-12 BUILDING 3 NO 5005 SHENJIANG ROAD PILOT FREE TRADE ZONE SHANGHAI 201206

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gao, Xiaoru Shanghai, CN 24 58
Sun, Shungen Shanghai, CN 18 51

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
3.5 Year Payment $1600.00 $800.00 $400.00 Dec 25, 2027
7.5 Year Payment $3600.00 $1800.00 $900.00 Dec 25, 2031
11.5 Year Payment $7400.00 $3700.00 $1850.00 Dec 25, 2035
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
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