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VOLTAGE DROP COMPENSATION METHOD ON USB TYPE C CABLE AND CORRESPONDING CIRCUIT

机译:USB C型电缆及其对应电路上的电压降补偿方法

摘要

The method of compensation of a voltage drop (Vdrop) on a USB cable (3) type C connected between a source device (2) USB type C and a receiver device (4) USB type C, includes a detection phase ( PD) of the cable connection (3) including a delivery by the source device (2) on a channel configuration pin (CC1) of said source device (2) of an offset current (Ios) so as to raise the voltage (Vcc) on the channel configuration pin (CC1) of the source device (2) at a selected reference voltage (Vrefi), and a storage of this offset current (Ios) in the source device (2), and a charging phase (PC), at the end of the detection phase (PD), including an absorption by the source device (2) of an absorption current (Ia) coming from the pin (CC1) of channel configuration of the source device (2) and according to the stored offset current (Ios) and said voltage drop (Vdrop), and a gen by the source device (2), on a supply pin (VBUS) of the source device (2), a compensated supply voltage (Vbus_comp) equal to a reference supply voltage (Vbus ref) increased said voltage drop (Vdrop) to within a tolerance.
机译:补偿连接在源设备(2)USB类型C和接收器设备(4)USB类型C之间的USB电缆(3)C型上的电压降(Vdrop)的方法包括以下检测阶段(PD):电缆连接(3),包括由源设备(2)在所述源设备(2)的通道配置引脚(CC1)上输送偏移电流(Ios),以提高通道上的电压(Vcc)源设备(2)的配置引脚(CC1)处于选定的参考电压(Vrefi),并在源设备(2)中存储此偏移电流(Ios),最后存储充电阶段(PC)检测阶段(PD)的时间,包括源设备(2)吸收来自源设备(2)的通道配置的引脚(CC1)的吸收电流(Ia),并根据存储的偏移电流( Ios)和所述电压降(Vdrop)以及源设备(2)产生的gen在源设备(2)的电源引脚(VBUS)上的补偿电源电压(Vbus_comp)eq相对于参考电源电压(Vbus ref),所述电压降(Vdrop)增加到容限内。

著录项

  • 公开/公告号FR3070774A1

    专利类型

  • 公开/公告日2019-03-08

    原文格式PDF

  • 申请/专利权人 STMICROELECTRONICS (ALPS) SAS;

    申请/专利号FR20170058133

  • 发明设计人 ALEXANDRE PONS;

    申请日2017-09-04

  • 分类号G05F1/46;G05F5/08;

  • 国家 FR

  • 入库时间 2022-08-21 11:43:51

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