Sensing a phase-path current in a multiphase power supply such as a coupled-inductor power supply

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8704500
APP PUB NO 20090045785A1
SERIAL NO

12189112

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

An embodiment of a power supply includes a supply output node, phase paths, and sensor circuits. The supply output node is operable to carry a regulated output voltage, and each phase path has a respective phase-path non-output node, has a respective phase-path output node coupled to the supply output node, and is operable to carry a respective phase current. And each sensor circuit has a respective sensor node coupled to the phase-path non-output nodes and is operable to generate a respective sense signal that represents the phase current flowing through a respective one of the phase paths. For example, where the phase paths are magnetically coupled to one another, the sensor circuits take into account the portions of the phase currents induced by the magnetic couplings to generate sense signals that more accurately represent the phase currents as compared to conventional sensor circuits.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
INTERSIL AMERICAS LLC1001 MURPHY RANCH ROAD MILPITAS CA 95035

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Liu, Jun San Jose, US 1497 18125
Qiu, Weihong San Jose, US 88 1271
Xiao, Shangyang Milpitas, US 10 321

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
11.5 Year Payment $7400.00 $3700.00 $1850.00 Oct 22, 2025
Fee Large entity fee small entity fee micro entity fee
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