Hybrid switch including GaN HEMT and MOSFET

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United States of America Patent

PATENT NO 9954522
SERIAL NO

15639183

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Abstract

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A hybrid switch apparatus includes a gate drive circuit producing a gate drive signal, a GaN high electron mobility transistor (HEMT) having a first gate, a first drain, and a first source. A silicon (Si) MOSFET has a second gate, a second drain, and a second source. The GaN HEMT and the Si MOSFET are connected in a parallel arrangement so that (i) the first drain and the second drain are electrically connected and (ii) the first source and the second source are electrically connected. The second gate is connected to the gate drive circuit output to receive the gate drive signal. A delay block has an input connected to the gate drive circuit output and an delay block output is configured to produce a delayed gate drive signal for driving the GaN HEMT.

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Patent Owner(s)

Patent OwnerAddress
HELLA GMBH & CO KGAARIXBECKER STRASSE 75 LIPPSTADT 59552

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bai, Hua Flint, US 113 414
Lu, Juncheng Flint, US 18 127
Teng, Hui Flint, US 6 22

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