Buried zener - based references are frequently used for 12 - bit , 14 - bit , and higher resolution systems because the performance of the buried zener - based references can be extended by incorporating nonlinear temperature compensation networks into the design 在设计中使用非线性温度补偿网络，掩埋齐纳二极管基准的性能可以进一步提升，因此掩埋齐纳二极管基准经常用于12位、 14位和更高分辨率的系统中。
The best approximations algorithm is just the method which can solve the mini - max solution of the least value of frequency deviation . because of the reason above , in this paper the best approximations algorithm is introduced into calculating the parameters of atcxo compensation network for the first time 最佳一致逼近算法正是能够求解出使频率偏差的绝对值最小的极小极大解的一种方法,为此将最佳一致逼近算法首次应用于模拟温补晶振补偿网络参数的计算中。
Firstly , we introduced usages and developing situations of analog integrated circuits and the different design skills between analog and digital circuirs . this article secondly makes a detailed analysis and expatiation for the operational principle and design technique of regulator . then realize the regulator design in two different ways ( stable rc network and variable rc network ) , and accomplish the simulation using mxic 0 . 35m process by hspice 本文首先对包括电压调节器在内的模拟集成电路的特点、作用和发展概况以及它们与数字集成电路在设计方法上的差异等作了概述，然后在对电压调节器的工作原理及设计方法进行系统的阐述和分析的基础上，设计了两种不同结构形式的可以为存储器芯片提供工作电源的电压调节器(采用固定rc补偿网络的电压调节器与采用可变rc补偿网络的电压调节器) ，在mxic0 . 35 m的cmos工艺条件下，用hspice进行了仿真与测试。
The validity of the small - signal model and the controlled strategy proposed in [ 8 ] are verified by the simulation and experiment results . the results show that the modeling and design of the closed - loops are valid and the flying capacitor voltages control is independent with the output voltage control 仿真和实验结果表明,本文所建立的小信号模型是正确的,基于该模型设计的补偿网络可以使变换器具有较快的动态响应,同时也表明输出电压闭环和飞跨电容电压闭环是相互解耦的。
The experiment result shows that conversion efficiency in ccm is improved by 2 percent compared with that in dcm , although the on - resistance of winding in ccm is more than that in dcm . the analysis of open - loop transfer function in both dcm and ccm shows that pull - push hfl inverter at ccm 微分补偿网络的推挽高频链逆变电路在输出从空载变化到额定阻性负载变化的过程中，逆变电路工作模式从dcm变化到ccm模式，实验结果表明电路在这两种模式下都能输出稳定的正弦电压，且具有较高的稳态精度。
In the theoretical calculation , the best approximations algorithm shows its practicability and superiority comparing with the method of least squares . in the practices production , the practicability of the best approximations algorithm can be shown . the frequency stability is about 1ppm in the temperature range : - 20 70 . the frequency stability 在实际生产中最佳一致逼近算法具有实用性,用该算法求取的电阻参数来装配补偿网络,在- 20 - 70窄温度范围内atcxo的频率稳定度为: 1ppm左右; - 40 - 80宽得温度范围内频率温度度在: 2 . 5ppm左右。
