公开(公告)号：US10931099B1

公开(公告)日：2021-02-23

申请号：US16801750

申请日：2020-02-26

Applicant: CalAmp Corp.

Inventor： Justin Flor ,  Russell Cook

IPC: H02H7/18 ,  B60R16/033 ,  H02H3/24

Abstract: A disclosed under-voltage lockout (UVLO) circuit includes an automatic UVLO threshold configuration. The UVLO circuit may include an over-voltage protection circuit that receives power from a power source, a peak detector that detects a peak voltage output for the power source, a voltage threshold generator that sets a UVLO threshold based on the peak voltage output, and a comparator that compares an instantaneous voltage with the UVLO threshold and configures an operating mode of a device based on the comparison.

公开(公告)号：US20210351608A1

公开(公告)日：2021-11-11

申请号：US17381104

申请日：2021-07-20

Applicant: CALAMP CORP.

Inventor： Russell Cook ,  Justin Flor

IPC: H02J9/06 ,  H02J9/00 ,  H03K3/037 ,  G06F1/3287 ,  G05B19/042

Abstract: In one embodiment, a vehicle telematics device is disclosed with a hibernate control circuit. The hibernate control circuit can selective switch battery power on and off to hibernatable circuits. The hibernate control circuit can be responsive to external main power availability, battery charge condition, and a periodic low frequency clock in the generation of a battery switch enable A power supply switch can be selectively controlled by the battery switch enable signal to switch battery power on and off to the hibernatable circuits.

公开(公告)号：US20210265833A1

公开(公告)日：2021-08-26

申请号：US17153434

申请日：2021-01-20

Applicant: CalAmp Corp.

Inventor： Justin Flor ,  Russell Cook

IPC: H02H7/18 ,  B60R16/033 ,  H02H3/24

Abstract: Embodiments of the invention include an under-voltage lockout (UVLO) circuit with automatic UVLO threshold configuration. In an embodiment, the UVLO circuit includes an over-voltage protection circuit that receives power from a power source, a peak detector that detects a peak voltage output for the external power source, a voltage threshold generator that sets a UVLO threshold based on the peak voltage output, and a comparator that compares an instantaneous voltage with the UVLO threshold and configures an operating mode of a device based on the comparison.

公开(公告)号：US11070077B2

公开(公告)日：2021-07-20

申请号：US16132165

申请日：2018-09-14

Applicant: CALAMP CORP.

Inventor： Russell Cook ,  Justin Flor

IPC: H02J9/06 ,  H02J9/00 ,  H03K3/037 ,  G06F1/3287 ,  G05B19/042 ,  H03K19/20

Abstract: In one embodiment, a vehicle telematics device is disclosed with a hibernate control circuit. The hibernate control circuit can selective switch battery power on and off to hibernatable circuits. The hibernate control circuit can be responsive to external main power availability, battery charge condition, and a periodic low frequency clock in the generation of a battery switch enable signal. A power supply switch can be selectively controlled by the battery switch enable signal to switch battery power on and off to the hibernatable circuits.

公开(公告)号：US11742654B2

公开(公告)日：2023-08-29

申请号：US17746200

申请日：2022-05-17

Applicant: CALAMP CORP.

Inventor： Justin Flor ,  Russell Cook

IPC: H02H7/18 ,  B60R16/033 ,  H02H3/24

CPC classification number: H02H7/18 ,  B60R16/033 ,  H02H3/24

Abstract: A disclosed under-voltage lockout (UVLO) circuit includes an automatic UVLO threshold configuration. The UVLO circuit may include an over-voltage protection circuit that receives power from a power source, a peak detector that detects a peak voltage output for the power source, a voltage threshold generator that sets a UVLO threshold based on the peak voltage output, and a comparator that compares an instantaneous voltage with the UVLO threshold and configures an operating mode of a device based on the comparison.

公开(公告)号：US11336085B2

公开(公告)日：2022-05-17

申请号：US17153434

申请日：2021-01-20

Applicant: CalAmp Corp.

Inventor： Justin Flor ,  Russell Cook

IPC: H02H7/18 ,  B60R16/033 ,  H02H3/24

Abstract: An under-voltage lockout (UVLO) circuit includes an automatic UVLO threshold configuration. The UVLO circuit may include an over-voltage protection circuit that receives power from a power source, a peak detector that detects a peak voltage output for the power source, a voltage threshold generator that sets a UVLO threshold based on the peak voltage output, and a comparator that compares an instantaneous voltage with the UVLO threshold and configures an operating mode of a device based on the comparison.

公开(公告)号：US11742693B2

公开(公告)日：2023-08-29

申请号：US17381104

申请日：2021-07-20

Applicant: CALAMP CORP.

Inventor： Russell Cook ,  Justin Flor

IPC: H02J9/06 ,  H02J9/00 ,  H03K3/037 ,  G06F1/3287 ,  G05B19/042 ,  H03K19/20

CPC classification number: H02J9/061 ,  G05B19/042 ,  G06F1/3287 ,  H02J9/005 ,  H03K3/037 ,  G05B2219/25257 ,  H03K19/20

Abstract: In one embodiment, a vehicle telematics device is disclosed with a hibernate control circuit. The hibernate control circuit can selective switch battery power on and off to hibernatable circuits. The hibernate control circuit can be responsive to external main power availability, battery charge condition, and a periodic low frequency clock in the generation of a battery switch enable A power supply switch can be selectively controlled by the battery switch enable signal to switch battery power on and off to the hibernatable circuits.

公开(公告)号：US20230018400A1

公开(公告)日：2023-01-19

申请号：US17746200

申请日：2022-05-17

Applicant: CALAMP CORP.

Inventor： Justin Flor ,  Russell Cook

IPC: H02H7/18 ,  B60R16/033 ,  H02H3/24

Abstract: A disclosed under-voltage lockout (UVLO) circuit includes an automatic UVLO threshold configuration. The UVLO circuit may include an over-voltage protection circuit that receives power from a power source, a peak detector that detects a peak voltage output for the power source, a voltage threshold generator that sets a UVLO threshold based on the peak voltage output, and a comparator that compares an instantaneous voltage with the UVLO threshold and configures an operating mode of a device based on the comparison.

公开(公告)号：US20190341803A1

公开(公告)日：2019-11-07

申请号：US16132165

申请日：2018-09-14

Applicant: CALAMP CORP.

Inventor： Russell Cook ,  Justin Flor

IPC: H02J9/06 ,  H02J9/00 ,  H03K3/037 ,  G05B19/042 ,  G06F1/32

Abstract: In one embodiment, a vehicle telematics device is disclosed with a hibernate control circuit. The hibernate control circuit can selective switch battery power on and off to hibernatable circuits. The hibernate control circuit can be responsive to external main power availability, battery charge condition, and a periodic low frequency clock in the generation of a battery switch enable signal. A power supply switch can be selectively controlled by the battery switch enable signal to switch battery power on and off to the hibernatable circuits.