Invention Grant
US08810303B2 Method and system for controlling HS-NMOS power switches with slew-rate limitation 有权
用于控制具有压摆率限制的HS-NMOS功率开关的方法和系统

Method and system for controlling HS-NMOS power switches with slew-rate limitation
Abstract:
A method and system for limiting the slew rate of the output voltage of one or more high side (HS) NMOS power switches is disclosed. A circuit arrangement configured to control a first NMOS switch is described. The arrangement comprises voltage provisioning means configured to supply a gate voltage to a gate terminal of the first NMOS switch; current provisioning means configured to provide a current; a first control stage configured to provide and/or remove a connection between the gate terminal of the first NMOS switch and the voltage provisioning means, thereby switching the first NMOS switch to an on-state and/or an off-state, respectively; and a first feedback control link between an output terminal of the first NMOS switch and the current provisioning means configured to control the slew-rate of a voltage at the first output terminal.
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