HV converter with reduced EMI

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United States of America Patent

PATENT NO 10763221
SERIAL NO

16555567

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Abstract

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A high voltage (HV) converter implemented on a printed circuit board (PCB) includes a double diffused metal oxide semiconductor (DMOS) package comprising a lead frame and a main DMOS chip. The lead frame includes a gate section electrically connected to a gate electrode of the main DMOS chip, a source section electrically connected to a source electrode of the main DMOS chip and a drain section electrically connected to a drain electrode of the main DMOS chip. The PCB layout includes a large area source copper pad attached to and overlapping the source section of the DMOS package to facilitate cooling and a small area drain copper pad attached to and overlapping the drain section of the DMOS package to reduce electromagnetic interference (EMI) noise.

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Patent Owner(s)

Patent OwnerAddress
ALPHA AND OMEGA SEMICONDUCTOR (CAYMAN) LTDGRAND CAYMAN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chang, Kuang Ming Fremont, US 11 121
Chen, Lin San Jose, US 717 4332
Huang, QiHong San Jose, US 20 110
Lu, Tzu-Hsin San Jose, US 2 2
Niu, Zhiqiang Santa Clara, US 48 220
Sun, Ning San Jose, US 87 1411

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