US 2026/0189230 A1 · DRIVING CHIP, BIDIRECTIONAL POWER APPARATUS, AND MANUFACTURING METHOD

Abstract

A driving chip for driving a bidirectional power device and modulating a substrate potential of the bidirectional power device, the bidirectional power device comprising a first power end, a second power end, a control end, and a substrate potential end, can include: a driving circuit; a substrate potential modulation circuit; where the driving circuit and the substrate potential modulation circuit are formed on a same substrate; and where the substrate potential modulation circuit is configured to receive signals from the control end and from the first power end and/or the second power end, and is coupled to the substrate potential end, such that a voltage at the substrate potential end of the bidirectional power device is substantially consistent with a lowest voltage among voltages at the control end, the first power end, and the second power end.

Claims22

Dependent claims

a driving circuit, and
a substrate potential modulation circuit;
wherein the driving circuit and the substrate potential modulation circuit are formed on a same substrate;
wherein the substrate potential modulation circuit is configured to receive signals from the control end and from the first power end and/or the second power end, and is coupled to the substrate potential end, such that a voltage at the substrate potential end of the bidirectional power device is substantially consistent with a lowest voltage among voltages at the control end, the first power end, and the second power end.

1 more element

A method for manufacturing a driving chip, comprising:

providing a substrate;
and
forming a driving circuit and a substrate potential modulation circuit in the substrate, wherein the driving circuit is configured to drive a bidirectional power device, and the substrate potential modulation circuit is configured to modulate a substrate potential of the bidirectional power device;
wherein the bidirectional power device comprises a first power end, a second power end, a control end, and a substrate potential end;
wherein the substrate potential modulation circuit is configured to receive signals from the control end and from the first power end and/or the second power end, and is connected to the substrate potential end, such that the substrate potential end of the bidirectional power device is substantially consistent with a lowest voltage among voltages at the control end, the first power end and the second power end.

2 more elements

Dependencies are inferred from the claim text.

Driving chip, bidirectional power apparatus, and manufacturing method

Life of this patent

Driving chip, bidirectional power apparatus, and manufacturing method

Life of this patent

Abstract

Claims22