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公开(公告)号：US11641126B2
公开(公告)日：2023-05-02
申请号：US16039321
申请日：2018-07-18
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Zheren Lai , Jinrong Qian , Sai Bun Wong , Ryan Erik Lind , Alexander Lee McHale
Abstract: A system for charging a battery includes an adapter, and a charger coupled to receive power from the adapter, and to provide a charging current to the battery. The charger includes a power stage with a charge pump to provide the charging current, and a feedback circuit to provide a feedback signal to the adapter. The power stage can be one of: an adjustable current source with voltage clamp, and an adjustable voltage source with current clamp. The charge pump can be implemented as a voltage divider, so that an input adapter current is multiplied by a pre-defined divider ratio to provide the charging current. The charge pump can be one of: single-phase; and multi-phase.
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公开(公告)号：US20190115765A1
公开(公告)日：2019-04-18
申请号：US16039321
申请日：2018-07-18
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Zheren Lai , Jinrong Qian , Sai Bun Wong , Ryan Erik Lind , Alexander Lee McHale
Abstract: A system for charging a battery includes an adapter, and a charger coupled to receive power from the adapter, and to provide a charging current to the battery. The charger includes a power stage with a charge pump to provide the charging current, and a feedback circuit to provide a feedback signal to the adapter. The power stage can be one of: an adjustable current source with voltage clamp, and an adjustable voltage source with current clamp. The charge pump can be implemented as a voltage divider, so that an input adapter current is multiplied by a pre-defined divider ratio to provide the charging current. The charge pump can be one of: single-phase; and multi-phase.
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公开(公告)号：US20200266634A9
公开(公告)日：2020-08-20
申请号：US16039321
申请日：2018-07-18
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Zheren Lai , Jinrong Qian , Sai Bun Wong , Ryan Erik Lind , Alexander Lee McHale
Abstract: A system for charging a battery includes an adapter, and a charger coupled to receive power from the adapter, and to provide a charging current to the battery. The charger includes a power stage with a charge pump to provide the charging current, and a feedback circuit to provide a feedback signal to the adapter. The power stage can be one of: an adjustable current source with voltage clamp, and an adjustable voltage source with current clamp. The charge pump can be implemented as a voltage divider, so that an input adapter current is multiplied by a pre-defined divider ratio to provide the charging current. The charge pump can be one of: single-phase; and multi-phase.
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