公开(公告)号：US20180233937A1

公开(公告)日：2018-08-16

申请号：US15951759

申请日：2018-04-12

Applicant: RICHTEK TECHNOLOGY CORPORATION

Inventor： Ta-Yung YANG ,  Jing-Meng LIU ,  Isaac Y. CHEN ,  Tzu-Chen LIN

IPC: H02J7/00 ,  H02M3/158

CPC classification number: H02J7/0052 ,  H02J7/0068 ,  H02J7/0091 ,  H02J2007/0059 ,  H02J2007/0062 ,  H02M3/1582

Abstract: An adaptive buck converter of a charging cable includes: a power receiving interface for receiving a DC voltage and a cable current from a cable; a terminal communication interface for transmitting a charging voltage and a charging current to a connection terminal of the charging cable and for receiving a communication signal generated by a mobile device from the connection terminal; a power converting circuit for receiving the DC voltage and the cable current from the power receiving interface and for generating the charging voltage and the charging current; a monitor circuit arranged to operably detect the DC voltage or the cable current; and a data processing circuit configured for controlling the power converting circuit according to the communication signal. The data processing circuit further communicates with the mobile device through the terminal communication interface and the connection terminal in response to a detection result of the monitor circuit.

公开(公告)号：US20170201101A1

公开(公告)日：2017-07-13

申请号：US15013493

申请日：2016-02-02

Applicant: Richtek Technology Corporation

Inventor： Ta-Yung YANG ,  Jing-Meng LIU ,  Isaac Y. CHEN ,  Tzu-Chen LIN

IPC: H02J7/00

CPC classification number: H02J7/0044 ,  G06F1/266 ,  H02J7/0042 ,  H02J7/0052 ,  H02J7/0055 ,  H02J7/007 ,  H02J7/0072 ,  H02J2007/0059 ,  H02J2007/0062 ,  H02M3/158 ,  H02M3/1584 ,  H02M2001/007 ,  H04M19/00

Abstract: An adaptive charging voltage generator of a mobile device charger includes: a power receiving interface for receiving a DC voltage and a cable current from a cable; a terminal communication interface for transmitting a charging voltage and a charging current to a connection terminal of the mobile device charger and for receiving a communication signal generated by the mobile device from the connection terminal; a buck converter for receiving the DC voltage and the cable current from the power receiving interface and for generating the charging voltage and the charging current, wherein the charging voltage is lower than the DC voltage while the charging current is greater than the cable current; and a charging voltage control circuit coupled with the buck converter and configured for controlling the buck converter according to the communication signal.

公开(公告)号：US20170201107A1

公开(公告)日：2017-07-13

申请号：US15013459

申请日：2016-02-02

Applicant: Richtek Technology Corporation

Inventor： Ta-Yung YANG ,  Jing-Meng LIU ,  Isaac Y. CHEN ,  Tzu-Chen LIN

IPC: H02J7/00

CPC classification number: H02J7/0044 ,  G06F1/266 ,  H02J7/0042 ,  H02J7/0052 ,  H02J7/0055 ,  H02J7/007 ,  H02J7/0072 ,  H02J2007/0059 ,  H02J2007/0062

Abstract: An adaptive buck converter of a charging cable includes: a power receiving interface for receiving a DC voltage and a cable current from a cable; a terminal communication interface for transmitting a charging voltage and a charging current to a connection terminal of the charging cable and for receiving a communication signal generated by the mobile device from the connection terminal; a power converting circuit for receiving the DC voltage and the cable current from the power receiving interface and for generating the charging voltage and the charging current, wherein the charging voltage is lower than the DC voltage while the charging current is greater than the cable current; and a data processing circuit coupled with the power converting circuit and configured for controlling the power converting circuit according to the communication signal.