Description: 我们对处理速度的需求日益增长，伴随着这种增
长，用来构建单片机的晶体管尺寸则在持续减小。
以更低的成本实现更高的集成度，也促进了对更小
的几何尺寸的需求。随着尺寸的减小，晶体管击穿
电压变得更低，最终，当击穿电压低于电源电压
时，就要求减小电源电压。因此，随着速度的提高
和复杂程度的上升，对于高密度器件而言，不可避
免的后果就是电源电压将从 5V 降至 3.3V，甚至
1.8V。-We are increasing the demand for processing speed, along with this growth, the transistors used to build the single-chip size continues to decrease. Lower cost to achieve higher integration, but also promoted the geometry of a smaller demand. As the size decreases, the transistor breakdown voltage becomes lower, and ultimately, when the breakdown voltage below the supply voltage, then reduce the supply voltage requirements. Thus, with the speed and complexity of the increase, for high-density devices, the inevitable consequence is that the power supply voltage from 5V to 3.3V, or 1.8V. Platform: |
Size: 722944 |
Author:季小虎 |
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Description: 该空调器通电延时启动保护器由MCS-51单片机AT89C51来实现功能：在电源电压不稳定的地方，当空调器断电后无论什么时候再来电，都不会因此而产生烧毁压缩机得故障，也不需人为反复重新将空调器按键启动开机与设置工作模式和状态了。可以保证在任何情况下出现瞬间停电时都能使空调机得到保护并自动安全地进入正常工作状态.避免因瞬间停电造成压缩机起动负荷过大而受损.有效地减少故障,延长使用寿命-This air-conditioner circular telegram time delay start protector realizes the function by MCS-51 monolithic integrated circuit AT89C51: In supply voltage unstable place, after air-conditioner power failure regardless of when comes the electricity again, all cannot therefore produces burns down the compressor to result in the breakdown, also did not need artificial again starts repeatedly the air-conditioner pressed key starting and the establishment working pattern and the condition.May guarantee has the instantaneous power cut when any situation all can enable the electric refrigerator, the air conditioner to obtain the protection and the automatic security enters the normal work condition. Because avoids the instantaneous power cut creating the compressor to start the load oversized to suffer injury. Reduces the breakdown effectively, the extension service life. Platform: |
Size: 64512 |
Author:陆宝 |
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Description: 该空调器通电延时启动保护器由MCS-51单片机AT89C51来实现功能：在电源电压不稳定的地方，当空调器断电后无论什么时候再来电，都不会因此而产生烧毁压缩机得故障，也不需人为反复重新将空调器按键启动开机与设置工作模式和状态了。可以保证在任何情况下出现瞬间停电时都能使空调机得到保护并自动安全地进入正常工作状态.避免因瞬间停电造成压缩机起动负荷过大而受损.有效地减少故障,延长使用寿命.-This air-conditioner circular telegram time delay start protector realizes the function by MCS-51 monolithic integrated circuit AT89C51: In supply voltage unstable place, after air-conditioner power failure regardless of when comes the electricity again, all cannot therefore produces burns down the compressor to result in the breakdown, also did not need artificial again starts repeatedly the air-conditioner pressed key starting and the establishment working pattern and the condition.May guarantee has the instantaneous power cut when any situation all can enable the electric refrigerator, the air conditioner to obtain the protection and the automatic security enters the normal work condition. Because avoids the instantaneous power cut creating the compressor to start the load oversized to suffer injury. Reduces the breakdown effectively, the extension service life. Platform: |
Size: 64512 |
Author:杨雯森 |
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Description: 这是一个LS-SVM的预测实例，主要实现对击穿电压的预测出图形，希望能够给与帮助~-This is an instance of LS-SVM' s prediction, the main achievement of the predicted breakdown voltage graph, hoping to give help ~ Platform: |
Size: 230400 |
Author:杨志恒 |
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Description: 编程通过matlab仿真。确定突变结和非突变结击穿电压随P区和N区浓度的变化关系。-Programmed by Matlab simulation. Determine the abrupt junction and non-abrupt junction breakdown voltage variation with the concentration of P and N District. Platform: |
Size: 1024 |
Author:葛维 |
Hits:
Description: In aeronautics field, the constraints are such as the mass of the filters can represent up
to 50 of the total mass of the converter. During the last years, magnetic coupled interleaved
converters enhances performances (power density, efficiency, transient response). It existe
several possibilities for use interleaved coupled topologies that use inter-phase transformer
exist, the main objective of this study is to find among these topologies the best adapted
configuration in the context of a three-phase voltage inverter 110Veff/400Hz 25kVA. The
choice of the magnetic material type has a great impact on determining the weight, the
volume and the losses of the converter. Parallelization leads to increase the semiconductor
number. These new structures must guarantee at the same time a raised efficiency, a low mass
and a great reliability, even in the event of case of breakdown of a power semiconductor-In aeronautics field, the constraints are such as the mass of the filters can represent up
to 50 of the total mass of the converter. During the last years, magnetic coupled interleaved
converters enhances performances (power density, efficiency, transient response). It existe
several possibilities for use interleaved coupled topologies that use inter-phase transformer
exist, the main objective of this study is to find among these topologies the best adapted
configuration in the context of a three-phase voltage inverter 110Veff/400Hz 25kVA. The
choice of the magnetic material type has a great impact on determining the weight, the
volume and the losses of the converter. Parallelization leads to increase the semiconductor
number. These new structures must guarantee at the same time a raised efficiency, a low mass
and a great reliability, even in the event of case of breakdown of a power semiconductor Platform: |
Size: 8912896 |
Author:imed |
Hits:
Description: S8050详解
耗散功率0.625W（贴片：0.3W）集电极电流0.5A集电极--基极电压40V集电极--发射极击穿电压25V集电极-发射极饱和电压 0.6V特征频率fT 最小150MHZ 典型值产家的目录没给出引脚排列为EBC或ECB 838电子按三极管后缀号分为 B C D档 贴片为 L H档-S8050 Xiangjie power dissipation 0.625W (SMD: 0.3W) collector current of 0.5A collector- base voltage of 40V collector- emitter breakdown voltage 25V collector- emitter saturation voltage 0.6V characteristic frequency fT the minimum the 150MHZ typical value production home directory is not given pinout EBC or ECB 838 electronic by triode suffix number into BCD file SMD LH file Platform: |
Size: 91136 |
Author:四真文 |
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Description:
D3为继电器工作指示灯，说明5V电压处于正常状态。
D2为继电器吸合指示灯，说明继电器处于吸合状态(继电器线圈两端有电压)。
C1为继电器并联的电容，继电器释放后线圈两端电压往下滑，可防止吸合频率过高影响寿命。
D1为继电器反向并联的二极管，可防止继电器释放后，产生很高的电压峰值，击穿对静电敏感的器件。
R3,R1为继电器的工作、吸合指示灯，可防止电压高击穿电源指示灯。
Q1为PNP三极管，用于对单片机的I/O口的电流进行放大。
R2为三极管基极串联的电阻，防止输入的信号过强。
RL1为5V继电器，L1为220V白炽灯，可连接AC 220V 10A或DC 30V 10A控制用电器。
1HZ方波信号源可直接改为单片机的I/O口，控制强电接通或断开。-D3 relay work light, indicating 5V voltage in a normal state.
D2 is a relay indicator, indicating the relay is attracted state (at both ends of the relay coil voltage).
Parallel capacitor C1 relay, the voltage across the relay coil is released sliding, pull prevents excessive frequency affect life expectancy.
D1 relay antiparallel diodes prevent the relay after the release to generate a high voltage peak, the breakdown of static sensitive devices.
R3, R1 is working relay, pull the indicator to prevent high breakdown voltage power indicator.
Q1 is a PNP transistor, for MCU I/O port of the current amplification.
R2 is a resistor in series with the transistor base, to prevent the input signal is too strong.
RL1 is 5V relay, L1 is 220V incandescent, or can be connected to AC 220V 10A DC 30V 10A control appliances.
1HZ square wave signal source directly to the microcontroller s I/O port, control the strong power on or off. Platform: |
Size: 55296 |
Author:1 |
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Description: 本人主要学习研究synopsis公司的Sentaurus TCAD半导体工艺软件的使用,此程序主要是实现对光电二极管的I-V特性曲线的仿真脚本（可以测试反相击穿电压以及正向阈值电压）-I mainly study the synopsis of Sentaurus TCAD semiconductor process software, the use of this program is mainly for the photodiode I- V characteristic curve of the simulation script (can test the reverse breakdown voltage, and positive threshold voltage) Platform: |
Size: 1024 |
Author:ReadingBlue |
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Description: This a tutorial breakdown of gases (HIGH VOLTAGE). Try to do it , is good to make it as exercises.-This is a tutorial breakdown of gases (HIGH VOLTAGE). Try to do it , is good to make it as exercises. Platform: |
Size: 4517888 |
Author:miqa |
Hits:
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