At light loads , the architecture allows the chip to “ skip ” cycles to reduce power dissipation . in the circuit design , the basic principle and small signal model of the boost power stage are given at first , and then the stability and small signal model of the control loop are also analyzed , finally , the whole chip architecture and sub - block parameters are presented according to the application requirements 在电路设计中,首先阐述了升压型直流转换器的功率输出级的拓扑结构、基本原理、小信号模型,然后分析了电流模式控制回路的稳定性及小信号模型,最后根据应用要求进行了电路的总体架构设计,完成了每个子电路的各种参数的分析、计算。
With promulgation and obliging actualization of iec 1000 - 3 - 2 etc . international standards , power factor correction ( pfc ) technique become a hotspot of research in power electronics field . based on average current mode , the paper introduce the design and implementation of a fully digital controlled single - phase boost power factor corrector with fast response . the control - loop circuit is realized using digital control and the corrector can tend to unity power factor , lower current harmonics and high transfer efficiency 本文在平均电流模式控制的有源功率因数校正技术的基础上，设计了一种控制电路基于数字信号处理器( dsp ) 、主电路采用boost变换器拓扑结构的全数字单相功率因数校正器，用数字电路代替传统的模拟电路来实现对整个回路的控制，最终使得校正器具有输入功率因数接近于1 、低电流谐波以及高转换效率的特性。
Based on the analysis and comparison of the peak current - injection mode and average current mode control strategies , the method of designing average current control mode pi regulator is obtained . the digital simulation of the converter has been done with the help of matlab software . the good transient and stable character of the converter is attained while rated load 在分析与比较峰值电流模式与平均值电流模式控制策略的基础上，给出平均值电流模式pi调节器的设计方法，利用matlab软件对变换器进行了数字仿真，证实了变换器在额定功率范围内动、静态特性良好；过载情况下变换器具有自动限流、保护主功率器件的特性。
When this self - tuning method is practically applied in a temperature control system in an electric heater , a multi - mode control algorithm which involves in switching control , fuzzy control and pid control is designed for considering that those control methods have their own advantages and disadvantages 在将该方法运用到以电阻炉温度为控制对象的实际控制系统中时，考虑到各种控制方法各有优劣，基于多模式控制的思想，设计了开关控制、模糊控制和pid控制相结合的多模控制算法。
In this paper , first an overview and analysis is given of existing typical algorithms for real - time audio - stream segment then a algorithm base on energy is proposed to audio - stream segment . the utilization of message - action finite state automaton is also required to control different complex playback pattern 本文首先归纳和分析了当前语音检测的典型算法，通过综合比较，然后提出了一个基于能量的应用于教学系统的实时音频流分割的算法，首先对语音进行滤波除噪的预处理，然后利用语音的能量特征进行分割，最后利用有限自动机进行多模式控制。
