公开(公告)号：US10823785B2

公开(公告)日：2020-11-03

申请号：US15678108

申请日：2017-08-15

Applicant: RICHTEK TECHNOLOGY CORPORATION

Inventor： Chang-Yu Ho

IPC: G01R31/367 ,  H02J7/00 ,  G01R31/3835 ,  G01R31/3842

Abstract: The invention relates to a method for estimating the state of charge (SOC) of a battery when battery is in the at least states of: charging, discharging, and relaxing. The invention makes use of the battery voltage (VBAT) instead of the battery current. In order to build models in the method, we use standard charging and discharging processes to collect battery information.

公开(公告)号：US20190052110A1

公开(公告)日：2019-02-14

申请号：US16046979

申请日：2018-07-26

Applicant: RICHTEK TECHNOLOGY CORPORATION

Inventor： Kuo-Chi Liu ,  Chang-Yu Ho

IPC: H02J7/00 ,  H02J7/35 ,  G05F1/56

Abstract: A charger circuit with temperature compensation function includes: a power converter, an input voltage sense circuit, an output adjustment circuit and a charging control circuit. The power converter converts an input voltage supplied from a photovoltaic power module to an output voltage. The input voltage sense circuit generates a signal related to the input voltage according to the input voltage. The output adjustment circuit generates an output adjustment signal according to the signal related to the input voltage. The charging control circuit generates a control signal according to the output adjustment signal, thereby adjusting a level of an output current supplied from the power converter. When a level of the input voltage is smaller than a predetermined voltage threshold, the power converter decreases the output current.

公开(公告)号：US20170343610A1

公开(公告)日：2017-11-30

申请号：US15678108

申请日：2017-08-15

Applicant: RICHTEK TECHNOLOGY CORPORATION

Inventor： Chang-Yu Ho

IPC: G01R31/36 ,  H02J7/00

Abstract: The invention relates to a method for estimating the state of charge (SOC) of a battery when battery is in the at least states of: charging, discharging, and relaxing. The invention makes use of the battery voltage (VBAT) instead of the battery current. In order to build models in the method, we use standard charging and discharging processes to collect battery information.