Describe diference car junction.
标签： diference Describe junction car
上传时间： 2017-06-08
上传用户：nairui21
基于Matlab对约瑟夫森结（Josephson junction）RCSJ模型的交直流I-V特性及非线性混沌现象进行数值模拟。通过计算机数值模拟得到该模型的非线性微分方程数值解，研究了RCSJ模型中各参量对约瑟夫森结的影响，进而简要分析其I-V特性和非线性混沌现象的产生机理，绘制出约瑟夫森结的交直流I-V特性曲线、非线性微分方程的相图及因其高度非线性而引起的通过倍周期分岔和阵发性原理进入混沌状态的分岔图。还给出庞加莱截面及功率谱。
标签： Josephson junction Matlab RCSJ
上传时间： 2013-12-18
上传用户：sz_hjbf
摘要：本文基于Matlab对约瑟夫森结（Josephson junction）RCSJ模型的交直流I-V特性及非线性混沌现象进行数值模拟。通过计算机数值模拟得到该模型的非线性微分方程数值解，研究了RCSJ模型中各参量对约瑟夫森结的影响，进而简要分析其I-V特性和非线性混沌现象的产生机理，绘制出约瑟夫森结的交直流I-V特性曲线、非线性微分方程的相图及因其高度非线性而引起的通过倍周期分岔和阵发性原理进入混沌状态的分岔图。 关键词：超导器件 隧道效应 约瑟夫森结 弱耦合 倍周期分岔 庞加莱截面 混沌
标签： Josephson junction Matlab RCSJ
上传时间： 2014-01-25
上传用户：libenshu01
看到不少网友对COOLMOS感兴趣，把自己收集整理的资料、个人理解发出来，与大家共享。个人理解不一定完全正确，仅供参考。COOLMOS（super junction）原理，与普通VDMOS的差异如下： 对于常规VDMOS器件结构，大家都知道Rdson与BV这一对矛盾关系，要想提高BV，都是从减小EPI参杂浓度着手，但是外延层又是正向电流流通的通道，EPI参杂浓度减小了，电阻必然变大，Rdson就大了。所以对于普通VDMOS，两者矛盾不可调和。8 X( ?1 B4 i* q: i但是对于COOLMOS，这个矛盾就不那么明显了。通过设置一个深入EPI的的P区，大大提高了BV，同时对Rdson上不产生影响。为什么有了这个深入衬底的P区，就能大大提高耐压呢？
标签： COOLMOS
上传时间： 2014-12-23
上传用户：标点符号
Many thermal metrics exist for integrated circuit (IC) packages ranging from θja to Ψjt.Often, these thermal metrics are misapplied by customers who try to use them to estimate junction temperatures in their systems.
上传时间： 2013-10-18
上传用户：猫爱薛定谔
多远程二极管温度传感器-Design Considerations for pc thermal management Multiple RDTS (remote diode temperature sensing) provides the most accurate method of sensing an IC’s junction temperature. It overcomes thermal gradient and placement issues encountered when trying to place external sensors. PCB component count decreases when using a device that provides multiple inputs.Better temperature sensing improves product performance and reliability. Disk drive data integrity suffers at elevated temperatures. IBM published an article stating that a 5°C rise in operating temperature causes a 15% increase in the drive’s failure rate. The overall performance of a system can be improved by providing a more accurate temperature measurement of the most critical devices allowing them to run just a few degrees hotter.The LM83 directly senses its own temperature and the temperature of three external PN junctions. One is dedicated to the CPU of choice, the other two go to other parts of your system that need thermal monitoring such as the disk drive or graphics chip. The SMBus-compatible LM83 supports SMBus timeout and logic levels. The LM83 has two interrupt outputs; one for user-programmable limits and WATCHDOG capability (INT), the other is a Critical Temperature Alarm output (T_CRIT_A) for system power supply shutdown.
标签： Considerat Design 远程 二极管
上传时间： 2014-12-21
上传用户：ljd123456
The super-junction structure, which has P-type pillar layers as shown left, realizes high withstand voltage and ON-resistance lower than the conventional theoretical limit of silicon.
上传时间： 2014-12-31
上传用户：qwer0574
These Matlab files are a convenient interface for the Java library containing the implementation of thin junction tree filters (TJTF).
标签： implementation convenient containing interface
上传时间： 2014-03-06
上传用户：xcy122677
The AZ1117 is a series of low dropout three-terminal regulators with a dropout of 1.15V at 1A output current. The AZ1117 series provides current limiting and thermal shutdown. Its circuit includes a trimmed bandgap reference to assure output voltage accuracy to be within 1% for 1.5V, 1.8V, 2.5V, 2.85V, 3.3V, 5.0V and adjustable versions or 2% for 1.2V version. Current limit is trimmed to ensure specified output current and controlled short-circuit current. On-chip thermal shutdown provides protection against any combination of overload and ambient temperature that would create excessive junction temperature. The AZ1117 has an adjustable version, that can provide the output voltage from 1.25V to 12V with only 2 external resistors.
上传时间： 2019-04-11
上传用户：heaven0o0o0
This design uses Common-Emitter Amplifier (Class A) with 2N3904 Bipolar junction Transistor. Use “Voltage Divider Biasing” to reduce the effects of varying β (= ic / ib) (by holding the Base voltage constant) Base Voltage (Vb) = Vcc * [R2 / (R1 + R2)] Use Coupling Capacitors to separate the AC signals from the DC biasing voltage (which only pass AC signals and block any DC component). Use Bypass Capacitor to maintain the Q-point stability. To determine the value of each component, first set Q-point close to the center position of the load line. (RL is the resistance of the speaker.)
上传时间： 2020-11-27
上传用户：
