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首页> 外文会议>Conference on Ph.D. Research in Microelectronics and Electronics >Dynamic stability of a closed-loop gate driver enabling digitally controlled slope shaping
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Dynamic stability of a closed-loop gate driver enabling digitally controlled slope shaping

机译：闭环栅极驱动器的动态稳定性可实现数字控制的斜率整形

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A concept for a slope shaping gate driver IC is proposed, used to establish control over the slew rates of current and voltage during the turn-on and turn-off switching transients. It combines the high speed and linearity of a fully-integrated closed-loop analog gate driver, which is able to perform real-time regulation, with the advantages of digital control, like flexibility and parameter independency, operating in a predictive cycle-by-cycle regulation. In this work, the analog gate drive integrated circuit is partitioned into functional blocks and modeled in the small-signal domain, which also includes the non-linearity of parameters. An analytical stability analysis has been performed in order to ensure full functionality of the system controlling a modern generation IGBT and a superjunction MOSFET. Major parameters of influence, such as gate resistor and summing node capacitance, are investigated to achieve stable control. The large-signal behavior, investigated by simulations of a transistor level design, verifies the correct operation of the circuit. Hence, the gate driver can be designed for robust operation.
机译：提出了一种斜率整形栅极驱动器IC的概念，该概念用于在接通和断开开关瞬态期间建立对电流和电压的摆率的控制。它结合了完全集成的闭环模拟栅极驱动器的高速和线性度，该闭环模拟栅极驱动器能够执行实时调节，并具有数字控制的优势，例如灵活性和参数独立性，可按预测周期运行。循环调节。在这项工作中，模拟栅极驱动集成电路被划分为功能块，并在小信号域中建模，其中还包括参数的非线性。为了确保控制现代IGBT和超结MOSFET的系统的完整功能，已进行了分析稳定性分析。研究了影响的主要参数，例如栅极电阻和求和节点电容，以实现稳定的控制。通过对晶体管级设计的仿真研究，大信号行为验证了电路的正确操作。因此，可以将栅极驱动器设计为稳定运行。

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