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公开(公告)号：US10079538B2
公开(公告)日：2018-09-18
申请号：US15296733
申请日：2016-10-18
发明人： Xiaochun Zhao , Hasibur Rahman , Artur Lewinski , Tulong Yang
CPC分类号： H02M3/07 , H02M3/1582 , H03K2217/0081
摘要： A circuit includes a charge pump to generate an output reference voltage. A first bootstrap refresh circuit receives the reference voltage from the charge pump and is coupled between first and second bootstrap nodes of a DC/DC converter. The first bootstrap refresh circuit supplies first charge current that is sourced from the first bootstrap node to the second bootstrap node based on a control signal indicating a first operating mode of the DC/DC converter. A second bootstrap refresh circuit receives the reference voltage from the charge pump and is coupled between the first and second bootstrap nodes of the DC/DC converter. The second bootstrap refresh circuit supplies second charge current from the second bootstrap node to the first bootstrap node based on the control signal indicating a second operating mode of the DC/DC converter.
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公开(公告)号：US20180109179A1
公开(公告)日：2018-04-19
申请号：US15296733
申请日：2016-10-18
发明人： XIAOCHUN ZHAO , HASIBUR RAHMAN , ARTUR LEWINSKI , Tulong Yang
IPC分类号： H02M3/07
CPC分类号： H02M3/07 , H02M3/1582 , H03K2217/0081
摘要： A circuit includes a charge pump to generate an output reference voltage. A first bootstrap refresh circuit receives the reference voltage from the charge pump and is coupled between first and second bootstrap nodes of a DC/DC converter. The first bootstrap refresh circuit supplies first charge current that is sourced from the first bootstrap node to the second bootstrap node based on a control signal indicating a first operating mode of the DC/DC converter. A second bootstrap refresh circuit receives the reference voltage from the charge pump and is coupled between the first and second bootstrap nodes of the DC/DC converter. The second bootstrap refresh circuit supplies second charge current from the second bootstrap node to the first bootstrap node based on the control signal indicating a second operating mode of the DC/DC converter.
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