• Patent Title: Current limitation for voltage regulator
  • Application No.: US16449893
    Application Date: 2019-06-24
  • Publication No.: US10761550B2
    Publication Date: 2020-09-01
  • Inventor: Christian Vincent Sorace
  • Applicant: NXP B.V.
  • Applicant Address: NL Eindhoven
  • Assignee: NXP B.V.
  • Current Assignee: NXP B.V.
  • Current Assignee Address: NL Eindhoven
  • Agent Charlene R. Jacobsen
  • Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@555dad68
  • Main IPC: G05F1/573
  • IPC: G05F1/573 G05F1/46 G05F1/575
Current limitation for voltage regulator
Abstract:
This specification discloses methods and devices for limiting output current of a voltage regulator, in order to protect the voltage regulator against component overstress in case of output load current overloading. In some embodiments, a current limitation circuit acting on a reference input voltage of a voltage regulator can limit the maximum output load current of the voltage regulator. Once the current limitation circuit detects an over current load, the reference voltage is adjusted or decreased to limit the maximum output load current. Additionally, these methods and devices can be coupled easily with a slew rate control circuit to also limit the inrush current.
Public/Granted literature
Information query
IPC分类:
G 物理
G05 控制;调节
G05F 调节电变量或磁变量的系统(调节雷达或无线电导航系统中脉冲计时或脉冲重复频率的入G01S;专用于电子计时器中电流或电压的调节入G04G19/02;用电装置调节非电变量的闭环系统入G05D;数字计算机的调节电源入G06F1/26;用于得到有衔铁时的所需电磁铁工作特性入H01F7/18;调节电功率的配电网络入H02J;调节电池充电的入H02J7/00;静态变换器输出的调节,例如开关式调节器入H02M;电发生器输出的调节入H02N,H02P9/00;变压器、电抗器、或扼流圈的控制入H02P13/00;调节放大器的频率响应、增益、最大输出、振幅或带宽的入H03G;调节谐振电路调谐的入H03J;控制电子振荡器或脉冲发生器的入H03L;调节传输线路特性的入H04B;控制电光源的入H05B39/04,H05B41/36,H05B45/10,H05B45/20,H05B47/10;X射线设备的电气控制入H05G1/30)
G05F1/00 从系统的输出端检测的一个电量对一个或多个预定值的偏差量并反馈到系统中的一个设备里以便使该检测量恢复到它的一个或多个预定值的自动调节系统,即有回授作用的系统
G05F1/10 .调节电压或电流(G05F1/02优先;用于电气铁路的入B60M3/02)
G05F1/46 ..其中由末级控制器实际调节的变量是直流的(G05F1/625优先)
G05F1/56 ...利用与负载串联的半导体器件作为末级控制器的
G05F1/565 ....除对系统输出偏差敏感的装置外,还检测系统一个工况或它的负载的,例如还检测电流、电压、功率因数(G05F1/563优先)
G05F1/569 .....用于保护的
G05F1/573 ......用过流检测器的
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