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Integrated switched inductor power converter having first and second powertrain phases

專利號
US11197374B2
公開日期
2021-12-07
申請人
Ferric Inc.(US NY New York)
發(fā)明人
Noah Sturcken; Joseph Meyer; Michael Lekas; Ryan Davies; David Jew; William Lee
IPC分類
H02M3/158; H05K1/18; H05K1/11; H05K1/02; H01F27/24; H01F27/28; H01F41/02; H01F41/04; H05K1/16; H02M3/00; H01F17/00; H05K1/03; H02M1/00
技術領域
inductor,chiplet,powertrain,dc,power,1002n,converter,in,load,switched
地域: NY NY New York

摘要

A switched inductor DC-DC power converter chiplet includes a CMOS power switch, an LC filter, regulation circuitry, feedback control circuitry, and interface control circuitry integrated on a common substrate. The inductor for the LC filter can be formed on the same surface or on opposing surfaces of the substrate as the electrical terminations for the substrate. Another embodiment includes a switched inductor DC-DC power converter chiplet having a first powertrain phase and multiple second powertrain phases. When the load current is less than or equal to a threshold load current, the power conversion efficiency can be improved by only operating the first powertrain phase. When the load current is greater than the threshold load current, the power conversion efficiency can be improved by operating one or more second powertrain phases.

說明書

FIG. 5 is a schematic representation of a switched inductor DC-DC power converter chiplet 50 according to one or more embodiments. Switched inductor DC-DC power converter chiplet 50 is the same or substantially the same as switched inductor DC-DC power converter chiplet 10 except as described below. In contrast to DC-DC power converter chiplet 10, the powertrain 550 of DC-DC power converter chiplet 50 is divided into phases 500A, 500B (in general, phase 500N). Each phase 500N includes a separate power switch 160N and thin-film inductor 170N. For example, phase 500A includes power switch 160A and thin-film inductor 170A. Power switch 160A includes PMOS and NMOS transistor gates 162A, 164A, respectively. Similarly, phase 500B is identical to phase 500A and thus includes its own power switch 160B and thin-film inductor 170B (not illustrated in FIG. 5). Switched inductor DC-DC power converter chiplet 50 can include additional phases 500N as desired. Each phase 500N is electrically in parallel with the other phases 500N. A common output terminal electrically couples the output of each phase 500N to the output power line. A common input terminal electrically couples the input of each phase 500N to the input power line.

權利要求

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