Output impedance and load independent latch-off timer for voltage-limit mode protection

    公开(公告)号:US11949224B2

    公开(公告)日:2024-04-02

    申请号:US17704089

    申请日:2022-03-25

    IPC分类号: H02H3/20 H02H1/00

    CPC分类号: H02H3/20 H02H1/0007

    摘要: One example includes a power supply system. The system includes a voltage-limit power regulator to generate an output voltage and an instantaneous overvoltage sensor configured to detect an overvoltage condition associated with the output voltage. The system further includes an overvoltage latch-off timer system configured to initiate a latch-off timer in response to detecting the overvoltage condition. The latch-off timer can be uninterrupted by an amplitude of the output voltage. The overvoltage latch-off timer system can further be configured to detect a persistent overvoltage fault in response to detecting the overvoltage condition after expiration of the latch-off timer. The overvoltage latch-off timer system can be configured to generate a fault signal to disable the voltage-limit power regulator in response to detecting the persistent overvoltage fault.

    Dynamic tracking regulator to protect radiation-hardened devices

    公开(公告)号:US11209849B1

    公开(公告)日:2021-12-28

    申请号:US16563023

    申请日:2019-09-06

    IPC分类号: G05F1/575 G05F1/625

    摘要: A circuit includes a regulation module having a threshold input to receive a clamp threshold voltage and a feedback input to monitor a swing-limited output voltage. The regulation module generates a difference signal that indicates a difference between the clamp threshold voltage and the swing-limited output voltage. A current compensation module includes a clamp port and an input port. The clamp port to controls the swing-limited output voltage and the input port receives the difference signal. The clamp port generates an adjustment current to control the swing-limited output voltage based on the difference signal. An adjustment network receives an input voltage and the adjustment current from the clamp port. The adjustment current to generate a voltage across the adjustment network such that the swing-limited output voltage at the clamp port is adjusted within a voltage range of the input voltage.

    OUTPUT IMPEDANCE AND LOAD INDEPENDENT LATCH-OFF TIMER FOR VOLTAGE-LIMIT MODE PROTECTION

    公开(公告)号:US20230307903A1

    公开(公告)日:2023-09-28

    申请号:US17704089

    申请日:2022-03-25

    IPC分类号: H02H3/20 H02H1/00

    CPC分类号: H02H3/20 H02H1/0007

    摘要: One example includes a power supply system. The system includes a voltage-limit power regulator to generate an output voltage and an instantaneous overvoltage sensor configured to detect an overvoltage condition associated with the output voltage. The system further includes an overvoltage latch-off timer system configured to initiate a latch-off timer in response to detecting the overvoltage condition. The latch-off timer can be uninterrupted by an amplitude of the output voltage. The overvoltage latch-off timer system can further be configured to detect a persistent overvoltage fault in response to detecting the overvoltage condition after expiration of the latch-off timer. The overvoltage latch-off timer system can be configured to generate a fault signal to disable the voltage-limit power regulator in response to detecting the persistent overvoltage fault.

    Open-loop tracking control module to control input range swing for radiation-hardened devices

    公开(公告)号:US11146227B1

    公开(公告)日:2021-10-12

    申请号:US16562948

    申请日:2019-09-06

    IPC分类号: H03G11/04

    摘要: A circuit includes a tracking control module that receives an input voltage and a dynamic reference voltage. The tracking control module generates a swing-limited output voltage to mitigate over-voltage swings of the input voltage. The tracking control module includes a bias tracker that receives the dynamic reference voltage and generates a reference tracking control signal that tracks voltage changes in the dynamic reference voltage. A swing-limiter receives the reference tracking control signal and the input voltage. The swing-limiter limits the magnitude of the received input voltage based on a threshold and adjusts the swing-limited output voltage in response to the reference tracking control signal.