Drain-to-source monitoring of power switches in a half-bridge during runtime

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United States of America Patent

PATENT NO 11716028
APP PUB NO 20230087438A1
SERIAL NO

17479724

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A driver circuit controls a half-bridge that includes a high-side power switch and a low-side power switch. The driver circuit may comprise a high-side compare unit configured to determine a first drain-to-source voltage, wherein the first drain-to-source voltage is associated with the high-side power switch when the high-side power switch is ON, and a low-side compare unit configured to determine a second drain-to-source voltage, wherein the second drain-to-source voltage is associated with the low-side power switch when the low-side power switch is ON. The high-side compare unit may be further configured to determine a third drain-to-source voltage, wherein the third drain-to-source voltage is associated with the high-side power switch when the high-side power switch is OFF, and the low-side compare unit may be further configured to determine a fourth drain-to-source voltage, wherein the fourth drain-to-source voltage is associated with the low-side power switch when the low-side power switch is OFF.

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Patent Owner(s)

Patent OwnerAddress
INFINEON TECHNOLOGIES AG85579 NEUBIBERG

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Murtaza, Cristian Bucharest, RO 4 1
Stemplinger, Peter Madrid, ES 3 1
Zannoth, Markus Neubiberg, DE 27 231

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