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多相位数字电源控制芯片应用于服务器的VR设计是比较新的技术。目前浪潮正在研制将具有这种技术的电源芯片应用在浪潮服务器主板上,从而提高产品在供电性能、功耗等方面的优势。传统模拟电源控制芯片与数字电源控制芯片的最大不同在于其反馈环路所采取的方案是模拟方案还是数字方案。传统模拟电源控制芯片反馈环路采用模拟阻容器件组成的TypeⅢ型补偿网络加误差放大器的调制方案;数字电源控制芯片反馈环路中集成了先进的PID控制单元,通过经典的比例积分微分控制来实现整个环路的补偿调节。
Multi-phase digital power control chip used in server VR design is relatively new technology. At present, Inspur is developing the power chip with this kind of technology to be used on the Inspur server board, so as to improve the product’s advantages in power supply performance and power consumption. The traditional analog power control chip and digital power control chip, the biggest difference is that the feedback loop is taken by the program is analog or digital solutions. The feedback loop of the traditional analog power control chip uses the Type III compensating network composed of analog RC devices and the modulation scheme of the error amplifier. The digital power control chip feedback loop integrates the advanced PID control unit, which is controlled by the classical proportional-integral-derivative control To achieve the compensation loop adjustment.