公开(公告)号：US20240367610A1

公开(公告)日：2024-11-07

申请号：US18774290

申请日：2024-07-16

Applicant: STMicroelectronics International N.V.

Inventor： Subodh Vikram SHUKLA ,  Saurabh SONA

IPC: B60R25/04 ,  G06F21/44 ,  G06F21/60 ,  H02P27/06 ,  H03K17/94 ,  H04B10/80

Abstract: A method of performing an authentication process to authenticate an electric motor unit includes establishing, by an external controller, secure encrypted communication with motor electronics of the electric motor unit, and sending, by the external controller, an authentication request to the motor electronics over the secure encrypted communication. The method further includes receiving, by the external controller, an authentication response from the motor electronics, verifying, by the external controller, a motor of the electronic motor unit as an authorized part based on the authentication response, and enabling control of the motor by the external controller only after successful authentication.

公开(公告)号：US20230022608A1

公开(公告)日：2023-01-26

申请号：US17383547

申请日：2021-07-23

Applicant: STMicroelectronics International N.V.

Inventor： Subodh Vikram SHUKLA ,  Saurabh SONA

IPC: B60R25/04 ,  G06F21/44 ,  G06F21/60 ,  H02P27/06 ,  H04B10/80

Abstract: Described herein is an electric motor drive system, including at least one power phase line, an external controller configured to generate a drive signal and provide the drive signal to the at least one power phase line, and motor electronics. The motor electronics include at least one switch coupled between the at least one power phase line and at least one electric motor terminal, and an internal controller configured to cooperate with the external controller to perform an authentication process therebetween. The external controller is further configured to cause the at least one switch to electrically couple the at least one power phase line to the at least one electric motor terminal in response to success of the authentication process.

公开(公告)号：US20200304019A1

公开(公告)日：2020-09-24

申请号：US16801370

申请日：2020-02-26

Applicant: STMicroelectronics International N.V.

Inventor： Akshat JAIN ,  Saurabh SONA

IPC: H02M1/36 ,  H02M1/42

Abstract: A power supply has a transformer with primary and secondary windings. A first terminal of the primary-winding is coupled to a power-input. A PFC includes a low-voltage circuit correcting power factor of the power signal, having a supply-input receiving a supply voltage during normal operation, a feedback-input coupled to a first terminal of the secondary-winding, and a gate-drive-output. A high-voltage startup circuit powers the low-voltage circuit during startup. Periphery circuitry includes a transient voltage suppression diode having an anode coupled to supply power to the high-voltage startup circuit and a cathode coupled to the power-input, a diode having an anode coupled to the first terminal of the secondary-winding and a cathode coupled to the supply-input of the low-voltage circuit. A capacitor is coupled between the supply-input and ground. A transistor has a drain coupled to a second terminal of the primary-winding and a gate coupled to the gate-drive-output.