公开(公告)号：US10756538B2

公开(公告)日：2020-08-25

申请号：US15495336

申请日：2017-04-24

Applicant: Silicon Laboratories Inc.

Inventor： Pranav R. Kaundinya ,  Sean A. Lofthouse

IPC: H02H9/04 ,  H02H9/02 ,  B60L3/04 ,  H02H3/44 ,  H02H3/087 ,  H01H83/20 ,  H02H3/08 ,  H03K17/082

Abstract: A technique for operating a driver includes enabling the driver to provide a first current through a first terminal of a driver device of the driver in a first mode of operation. The method includes sensing a voltage drop across the first terminal and a second terminal of the driver device to generate a sensed voltage level indicative of the voltage drop. The method includes generating a comparison output signal indicative of a comparison of the sensed voltage level to a threshold voltage level. The method includes selectively enabling the driver to provide a second current in a second mode of operation based on the comparison output signal. The first current may be less than the second current. The enabling may include enabling a first portion of the driver device using a first control signal, while a second portion of the driver device is disabled using a second control signal.

公开(公告)号：US20180309286A1

公开(公告)日：2018-10-25

申请号：US15495336

申请日：2017-04-24

Applicant: Silicon Laboratories Inc.

Inventor： Pranav R. Kaundinya ,  Sean A. Lofthouse

IPC: H02H9/04

Abstract: A technique for operating a driver includes enabling the driver to provide a first current through a first terminal of a driver device of the driver in a first mode of operation. The method includes sensing a voltage drop across the first terminal and a second terminal of the driver device to generate a sensed voltage level indicative of the voltage drop. The method includes generating a comparison output signal indicative of a comparison of the sensed voltage level to a threshold voltage level. The method includes selectively enabling the driver to provide a second current in a second mode of operation based on the comparison output signal. The first current may be less than the second current. The enabling may include enabling a first portion of the driver device using a first control signal, while a second portion of the driver device is disabled using a second control signal.

公开(公告)号：US10809777B2

公开(公告)日：2020-10-20

申请号：US15586891

申请日：2017-05-04

Applicant: Silicon Laboratories Inc.

Inventor： Pranav R. Kaundinya ,  Sean A. Lofthouse

IPC: G06F1/20 ,  G06F1/28 ,  H02M1/32 ,  H02H3/20 ,  G05F1/567 ,  H02H9/04

Abstract: A technique for thermal management of a circuit includes generating a power consumption estimate for the circuit based on a predetermined update amount and a comparison of a sensed voltage level to a predetermined voltage level. The method includes generating a fault signal based on the power consumption estimate and a predetermined power consumption limit. Generating the power consumption estimate may include sensing a voltage drop across a first terminal of a device of the circuit and a second terminal of the device to generate the sensed voltage level. The sensed voltage level may be indicative of the voltage drop. The method may include updating the power consumption estimate by the predetermined update amount in response to a clock signal. The power consumption estimate may be used as a proxy for a measurement of a thermal state of the circuit.

公开(公告)号：US20180321718A1

公开(公告)日：2018-11-08

申请号：US15586891

申请日：2017-05-04

Applicant: Silicon Laboratories Inc.

Inventor： Pranav R. Kaundinya ,  Sean A. Lofthouse

IPC: G06F1/20 ,  G05B15/02 ,  G05F1/567

Abstract: A technique for thermal management of a circuit includes generating a power consumption estimate for the circuit based on a predetermined update amount and a comparison of a sensed voltage level to a predetermined voltage level. The method includes generating a fault signal based on the power consumption estimate and a predetermined power consumption limit. Generating the power consumption estimate may include sensing a voltage drop across a first terminal of a device of the circuit and a second terminal of the device to generate the sensed voltage level. The sensed voltage level may be indicative of the voltage drop. The method may include updating the power consumption estimate by the predetermined update amount in response to a clock signal. The power consumption estimate may be used as a proxy for a measurement of a thermal state of the circuit.