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公开(公告)号：US20190190386A1
公开(公告)日：2019-06-20
申请号：US15849504
申请日：2017-12-20
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Kuang-Yao CHENG , Wenkai WU , Preetam TADEPARTHY , Nancy ZHANG , Dattatreya Baragur SURYANARAYANA , Naga Venkata Prasadu MANGINA
Abstract: A circuit for a multi-phase power regulator including a power stage with a first phase and a second phase, the circuit including phase management circuitry coupled to the first phase and the second phase to control the first phase and the second phase, a first comparator coupled to an output of the multi-phase power regulator to compare a value of the output of the multi-phase power regulator to a first threshold value to produce a first comparison result, and phase shedding circuitry coupled to the first comparator and the phase management circuitry to control the phase management circuitry to activate or deactivate the second phase based at least partially on the first comparison result.
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公开(公告)号：US20190109539A1
公开(公告)日：2019-04-11
申请号：US16051003
申请日：2018-07-31
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Wenkai WU , Shishuo ZHAO , Weidong ZHU
Abstract: An apparatus includes first and second power converter stages, each stage having a primary side and a secondary side. The primary side of the first stage includes a switch T1 A coupled to a voltage source and a switch T3A coupled to the switch T1 A. The primary side of the second stage includes a switch T2A coupled to the switch T3A and a switch T4A coupled to the switch T3A and to the voltage source. The apparatus includes a control circuit to control an on/off time of the switches. The control circuit includes four gate driver controllers to control the on/off time of the switches and a current sharing control section to increase or decrease the on time of a switch based on a comparison of a current through one of multiple output inductors to an average current through the multiple output inductors.
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