公开(公告)号：US11271493B2

公开(公告)日：2022-03-08

申请号：US16897672

申请日：2020-06-10

Applicant: STMicroelectronics LTD

Inventor： Laurent Gonthier ,  Yu Tsao Lin

IPC: H02M7/162 ,  H02M1/32 ,  H02M1/36 ,  H02M1/42 ,  H02M1/08 ,  H02M1/00

Abstract: A rectifying bridge has a thyristor coupled in series with a rectifying element between a first rectified output terminal of a rectifying bridge circuit and a second rectified output terminal of the rectifying bridge circuit. A diode is coupled in series with a DC voltage source between a gate of the thyristor and the second rectified output terminal.

公开(公告)号：US11251696B2

公开(公告)日：2022-02-15

申请号：US16885781

申请日：2020-05-28

Applicant: STMicroelectronics LTD

Inventor： Laurent Gonthier

IPC: H02M1/32 ,  H02M7/155 ,  H02M1/08 ,  H02M1/00

Abstract: A circuit includes two thyristors coupled in anti-series. An AC capacitor has first and second electrodes respectively coupled to two different electrodes of the two thyristors. The first and second electrodes are coupled to receive an AC voltage. A control circuit detects discontinuance of application of the AC voltage to the AC capacitor and in response thereto simultaneously applies same gate currents to the two thyristors. A current path through the two thyristors (one passing current in forward mode and the other in reverse mode) discharges a residual voltage stored on the AC capacitor.

公开(公告)号：US11711013B2

公开(公告)日：2023-07-25

申请号：US17568247

申请日：2022-01-04

Applicant: STMicroelectronics LTD

Inventor： Laurent Gonthier

IPC: H02M1/32 ,  H02M7/155 ,  H02M1/08 ,  H02M1/00

CPC classification number: H02M1/322 ,  H02M1/0085 ,  H02M1/08 ,  H02M7/155 ,  H02M7/1555

Abstract: A circuit includes two thyristors coupled in anti-series. An AC capacitor has first and second electrodes respectively coupled to two different electrodes of the two thyristors. The first and second electrodes are coupled to receive an AC voltage. A control circuit detects discontinuance of application of the AC voltage to the AC capacitor and in response thereto simultaneously applies same gate currents to the two thyristors. A current path through the two thyristors (one passing current in forward mode and the other in reverse mode) discharges a residual voltage stored on the AC capacitor.