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US 6,320,448 B1Granted
Bridge circuit for switching high currents
AssigneeInfineon Technologies AG
InventorJosef Gantioler
Life of this patent
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Abstract
The bridge circuit for switching high currents has n (n=a natural integer) lowside and highside switches (T1 to T4) in the form of vertically structured MOS transistors on two separate chips. The highside switch is formed using DMOS technology. The lowside switches are formed using common-source technology with the source arranged on the rear side of the chip and the drain arranged on the front side of the chip. The drain is connected to the source of the associated highside switch.
Claims9
A bridge circuit for switching high currents, comprising:
- two chips each having a front side and a rear side;
- a number n, where n is an integer, of lowside and highside switches separately formed as vertically structured MOS transistors on said two chips:
- said highside switch having a source;
- said lowside switches being formed with common-source technology and having a source arranged on said rear side of one of said two chips, a drain arranged on said front side of said one of said two chips, and a drain connected to said source of an associated said highside switch.
1 more element
Dependencies are inferred from the claim text.