US7493504B2 Active / In Force US ⏱️ 1.0 years remaining

System and method for interleaving point-of-load regulators

Assignee: Pwer Bridge LLC

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Filing: 2007-10-30

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Granted: 2009-02-17

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Expires: 2027-10-30

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Abstract

Abstract A system and method for providing interleaving point-of-load (POL) regulators such that each regulator's switching cycle is phase displaced with respect to those of other POL regulators in the array is disclosed. As a result, the aggregate input and/or output reflected ripple and noise of the input, output, or both is reduced. Each regulator in the array is associated with an unique address. A serial data-line writes the phase spacing programmed to each addressable POL regulator in the array. The present invention permits phase displacement of POL regulators without limitation to the input and output voltages of each of the regulators in the array. The array of POL regulators may also operate in a phase displaced mode with only a single control line. The need for separate controllers and multiple control lines is thereby eliminated.

Inventors

👤 Alain Chapuis

Bibliographic Details

Application Number —

Jurisdiction US

Data Source google_patents

Last Synchronized 2026-10-28 19:27

CPC Classifications

H; H02; H02M; H02M3/00; H02M3/22; H02M3/24; H02M3/28; H02M3/285; H02J; H02J1/00; H02J1/08; H02J1/10; H02J1/102; H02M3/02; H02M3/04; H02M3/10; H02M3/145; H02M3/155; H02M3/156; H02M3/158; H02M3/1584

Claims Analysis

Total Claims: 8

Claim 1

Independent Claim 102 words

A method for interleaving a plurality of switched-mode voltage regulators, comprising the steps of: selecting a phase displacement for each voltage regulator; generating a synchronization signal; communicating the synchronization signal to the plurality of voltage regulators simultaneously; generating a trigger signal for at least one of the plurality of voltage regulators that is phase displaced from the synchronization signal by the selected phase displacement and synchronized to a selected frequency multiple of the synchronization signal; providing a phase-displaced switching frequency based on the trigger signal; and operating the at least one of the plurality of voltage regulators using the phase-displaced switching frequency.

Claim 2

Independent Claim 102 words

Claim 3

Dependent Claim 15 words

The method of claim 1 , further comprising assigning an address for each voltage regulator.

Claim 4

Dependent Claim 25 words

The method of claim 2 , wherein the phase displacement for a selected voltage regulator is based on the address of the selected voltage regulator.

Claim 5

Dependent Claim 22 words

The method of claim 1 , further comprising transmitting the phase displacement for the selected voltage regulator to the selected voltage regulator.

Claim 6

Dependent Claim 24 words

The method of claim 1 , further comprising: receiving an input voltage via a common input bus; and providing a single multi-phase voltage output.

Claim 7

Dependent Claim 33 words

The method of claim 1 , further comprising: receiving a plurality of input voltages; and providing a plurality of output voltages, wherein each output voltage is phase displaced with respect to each other.

Claim 8

Dependent Claim 21 words

The method of claim 1 , further comprising: receiving a plurality of input voltages; and providing a single multi-phase voltage output.

References Cited (Backward Citations)

US3660672A Cited

US4204249A Cited

US4194147A Cited

US4328429A Cited

US4335445A Cited

US4350943A Cited

US4451773A Cited

US4538101A Cited

US4538073A Cited

US4607330A Cited

US4622627A Cited

JPS60244111A Cited

US4677566A Cited

US4654769A Cited

US4616142A Cited

US4630187A Cited

SU1359874A1 Cited

US4761725A Cited

EP0255258A2 Cited

EP0315366B1 Cited

US5168208A Cited

US4988942A Cited

US5053920A Cited

EP0401562B1 Cited

US4940930A Cited

US5004972A Cited

US5287055A Cited

US5270904A Cited

RU1814177C Cited

US5073848A Cited

US5117430A Cited

US5079498A Cited

US6115441A Cited

US5272614A Cited

US5229699A Cited

US5481140A Cited

WO1993019415A1 Cited

US5426425A Cited

US5398029A Cited

US5377090A Cited

US5349523A Cited

US5994885A Cited

US6304066B1 Cited

US5489904A Cited

EP0660487B1 Cited

US6121760A Cited

US5532577A Cited

US5627460A Cited

US6157182A Cited

US5727208A Cited

US5752047A Cited

US5646509A Cited

US5631550A Cited

US5675480A Cited

US5943227A Cited

US5815018A Cited

US5874912A Cited

US5929620A Cited

US5847950A Cited

US5889392A Cited

US5892933A Cited

US5872984A Cited

US5946495A Cited

EP0875994B1 Cited

US5905370A Cited

US5883797A Cited

US5917719A Cited

US5935252A Cited

US6170062B1 Cited

US6005377A Cited

US5870296A Cited

US6079026A Cited

US5990669A Cited

US6136143A Cited

US6911808B1 Cited

US6194883B1 Cited

US6163143A Cited

US6262900B1 Cited

US5929618A Cited

US6199130B1 Cited

US6055163A Cited

US6177787B1 Cited

US6304823B1 Cited

US6351108B1 Cited

US6590369B2 Cited

US6100676A Cited

US6198261B1 Cited

US6853169B2 Cited

EP0997825A3 Cited

US6181029B1 Cited

US6163178A Cited

US6021059A Cited

US6556158B2 Cited

US6137280A Cited

US6456044B1 Cited

US6355990B1 Cited

US6111396A Cited

US6288595B1 Cited

US6057607A Cited

US6191566B1 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	2012-02-17	2012-08-18	2013-02-17	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2016-02-17	2016-08-18	2017-02-17	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2020-02-17	2020-08-18	2021-02-17	$7700.00	Window Closed / Lapsed

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