基于DSP的导引头伺服平台控制器系统电源设计

由于目前高性能DSP系统在降低功耗的同时必须考虑其外围器件的电源特性,所以对DSP系统电路提供电源时必须要考虑到DSP两种电压的供电特性。介绍一种基于DSP的导引头伺服平台控制器电路的电源设计方案。详细给出采用高效率的电压转换芯片为DSP提供核电压、I/O接口电压的应用电路;并设计电源监控与复位电路,以确保供电系统的稳定、可靠和高效。测试表明该电源系统具有较强的实用性和通用性,可以应用于一般的数字伺服控制系统。

Design of Power Supply for Servo Platform Controller of Seeker Based on DSP

Besides lowing the power consumption of DSP chip,considering the voltage characteristics of external circuits are also important,so two types of voltage of DSP chip in designing power supply for high performance DSP system are considered.In this paper,a design solution of power supply for servo stabilized platform controller of seeker based on DSP is presented.A scheme of circuitry with efficient Low-Dropout Voltage Regulator which supplies power for kernel voltage and I/O voltage of DSP is given in detail.Further more,the circuitry of power monitor and control is given which can guarantee the power supply system to be stabilized,reliable and efficient.Experiments show that the power supply system has high practicability and universal property,it can be used in general digital servo control system.