公开(公告)号：US20170288511A1

公开(公告)日：2017-10-05

申请号：US15355533

申请日：2016-11-18

Applicant: Texas Instruments Incorporated

Inventor： Miroslav Oljaca ,  Ajinder Singh ,  Sanjay Pithadia

IPC: H02K11/33 ,  H03K17/567 ,  H02M3/07 ,  H02P27/08

CPC classification number: H02K11/33 ,  H02M1/08 ,  H02M3/07 ,  H02M2001/0006 ,  H02P6/085 ,  H02P27/08 ,  H03K17/063 ,  H03K17/567 ,  H03K2217/0081

Abstract: An integrated gate driver for motor control includes a first diode coupled to an upper rail and providing a voltage on a first connector and a power amplifier coupled between the first connector and a second connector that can be coupled to a source of a high-side power transistor. The power amplifier receives a control signal and provides an output signal to a second pin for driving a gate of the high-side power transistor. A first integrated capacitor is coupled between the first and second connector and an integrated charge pump is coupled to supply a current to the first connector. The charge pump includes a second integrated capacitor having a terminal coupled to a high frequency oscillator and a terminal coupled through a second diode to the first connector and a third diode coupled between the second connector and a point between the second capacitor and the second diode.

公开(公告)号：US09954422B2

公开(公告)日：2018-04-24

申请号：US15355533

申请日：2016-11-18

Applicant: Texas Instruments Incorporated

Inventor： Miroslav Oljaca ,  Ajinder Singh ,  Sanjay Pithadia

IPC: H02P1/30 ,  G05F1/10 ,  H02K11/33 ,  H02P27/08 ,  H03K17/567 ,  H02M3/07 ,  H02M1/08

CPC classification number: H02K11/33 ,  H02M1/08 ,  H02M3/07 ,  H02M2001/0006 ,  H02P6/085 ,  H02P27/08 ,  H03K17/063 ,  H03K17/567 ,  H03K2217/0081

Abstract: An integrated gate driver for motor control includes a first diode coupled to an upper rail and providing a voltage on a first connector and a power amplifier coupled between the first connector and a second connector that can be coupled to a source of a high-side power transistor. The power amplifier receives a control signal and provides an output signal to a second pin for driving a gate of the high-side power transistor. A first integrated capacitor is coupled between the first and second connector and an integrated charge pump is coupled to supply a current to the first connector. The charge pump includes a second integrated capacitor having a terminal coupled to a high frequency oscillator and a terminal coupled through a second diode to the first connector and a third diode coupled between the second connector and a point between the second capacitor and the second diode.