公开(公告)号：US20200076425A1

公开(公告)日：2020-03-05

申请号：US16399611

申请日：2019-04-30

Applicant: Texas Instruments Incorporated

Inventor： Mayank Garg ,  Shu-Ing Ju ,  Arun Rao

IPC: H03K17/687 ,  H03K17/693

Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed for a multi-level turn-off circuit. An example power delivery circuit includes a two-level turn-off circuit to be coupled to a first switch to reduce a first gate voltage of the first switch from a first voltage to a second voltage when a current flowing through the first switch is greater than an over-current threshold, the two-level turn-off circuit including a second switch, a voltage-current-voltage buffer to reduce a second gate voltage of the second switch from a third voltage to a fourth voltage, and a comparator circuit to turn off the second switch when the second gate voltage is the fourth voltage, and a driver to be coupled to the first switch to turn off the first switch when the second gate voltage is the fourth voltage.

公开(公告)号：US11799466B2

公开(公告)日：2023-10-24

申请号：US17244712

申请日：2021-04-29

Applicant: Texas Instruments Incorporated

Inventor： Sarvesh Bang ,  Arun Rao ,  Joseph Pham

IPC: H03K17/0812

CPC classification number: H03K17/08122

Abstract: Methods, apparatus, systems and articles of manufacture are disclosed to transmit signal in isolated gate drivers. An example apparatus includes a first encoder including: an edge detector coupled to a first sensor; a first clock counter coupled to the edge detector; a first signal selector coupled to the first clock counter; and a first multiplexer including coupled to a signal generator, the first clock counter, and the first signal selector; and a second encoder including: a level detector coupled to a second sensor; a second clock counter coupled to the level detector; a second signal selector coupled to the level detector and the second clock counter; and a second multiplexer coupled to the first multiplexer, a reference voltage, the second signal selector, and a modulator.

公开(公告)号：US20200076416A1

公开(公告)日：2020-03-05

申请号：US16552805

申请日：2019-08-27

Applicant: Texas Instruments Incorporated

Inventor： Sarvesh Bang ,  Arun Rao ,  Joseph Pham

IPC: H03K17/0812

Abstract: Methods, apparatus, systems and articles of manufacture are disclosed to transmit signals in isolated gate drivers. An example apparatus includes a first encoder including: an edge detector coupled to a first sensor; a first clock counter coupled to the edge detector; a first signal selector coupled to the first clock counter; and a first multiplexer coupled to a signal generator, the first clock counter, and the first signal selector; and a second encoder including: a level detector coupled to a second sensor; a second clock counter coupled to the level detector; a second signal selector coupled to the level detector and the second clock counter; and a second multiplexer coupled to the first multiplexer, a reference voltage, the second signal selector, and a modulator.