输入电压

This design adopts MC68HC908GP32 MCU by way of controlling core. It can collect coulometer and pressure of an accumulator and input pressure of AD converter. Then it sends digital signals, converted from analog signals, to the computer through its serial port.

本设计采用MC68HC908GP32 MCU作为控制核心，对蓄电池的电量、端电压和AD输入电压进行采集，将采集到的模拟电压经A/D转换为数字电压通过串行端口发送给计算机。

34C02M8/LM8 Pinout: Short Circuit Current Output Current Transition Time Maximum Transmission Rate 1,000 RS-422 RECEIVER Common Mode Range Differential Input Differential Input Threshold-0.2 Input Voltage Hysteresis30 Input Resistance3 TTL Output Level V V2.4 Maximum Receiving Rate1,000 Short Circuit Output Current POWER REQUIREMENTS V =+12V, 10% V =+5V, 10% V =-12V, 10% ENVIRONMENTAL Operating Temperature -CS0 -MR-55 Storage Temperature-65

34C02M8/LM8引脚说明：短路电流输出电流过渡时期的最大传输速率1000的RS - 422接收器差分输入共模范围差分输入阈值0.2输入电压Hysteresis30输入Resistance3 TTL输出等级V 2.4版本的最大接收Rate1，000短路输出电流电源要求ν= 12五，10％的V =+5 V的，10％的V =- 12V的，10％，环境工作温度- CS0 -议员- 55存储温度- 65

The output ripple voltage of the PWM converter is±8 mV with the emblematical condition: 1.5V input voltage, 3.3V output voltage, 100mA loading current, 1MHz working frequency. It means that the whole system has high stability according with the design request.

在输入电压1.5 V，输出电压3.3 V，负载电流100 mA，工作频率1 MHz的典型条件下，对该转换器进行整体仿真，得到输出纹波电压范围仅为±8 mV，说明电路具有高稳定性，符合设计要求。

The symmetric space voltage vector realized by TMS320F240 in software is introduced.

介绍了TMS320F240用软件生成对称空间电压矢量的方法，特别是针对高精度V/F值控制的应急通风机对交流变频调速的要求，通过检测直流侧电压实现对输入电压波动的前馈补偿，以提高输出电压精度，改善输出电流波形。

First of all, the circuit output waveform in the case of losing it by measuring the input voltage and output voltage in order to detect amplification of analog circuits, and then by adjusting the frequency of AC voltage source to reduce the output gain make 3db analog circuits in order to measure the maximum cut-off frequency, pass band can be obtained.

本电路首先在输出波形不失真的情况下通过测量输入电压和输出电压从而测出模拟电路的放大倍数，然后通过调节交流电压源的频率使得输出增益减少3db从而测量出模拟电路的上限截止频率，即可求出通频带。

The figure of the digital voltage meter used as a control 89S52 core single chip to achieve the range of hardware automatically switch circuit, and LED display by measuring the voltage, the comparator input voltage polarity detection; reasonable configuration of the system, simple structure,Capable of measuring 0 volts to 200 volts plus or minus voltage, fully meet the requirements of the design.

该数字该数字电压表采用89S52单片机作为控制核心，以硬件电路实现量程自动切换，并用LED显示被测量的电压，采用比较器检测输入电压的极性；该系统配置合理，结构简单，能够测量0伏到正负2000伏的电压，完全满足本设计的要求。

The figure of the digital voltage meter used as a control 89C51 single-chip core, hardware-range automatic switching circuit, and LED display by measuring the voltage, the comparator input voltage polarity detection; reasonable configuration of the system, simple structure, can measuring 0 volts to 200 volts plus or minus voltage, fully meet the requirements of the design.

该数字该数字电压表采用89C51单片机作为控制核心，以硬件电路实现量程自动切换，并用LED显示被测量的电压，采用比较器检测输入电压的极性；该系统配置合理，结构简单，能够测量0伏到正负200伏的电压，完全满足本设计的要求。

During certain specific application occasion need for very wide input voltage power supply to normal working,for instance, during Triphase Electric Energy Meter need input voltage during 90 to 500VAC be able to normal working .

在某些特殊的应用场合中，需要在很宽的输入电压范围内电源都能够正常工作，比如在三相电能表中就要求输入电压在90至500VAC都能正常工作。

Each device features receiver high input impedance and input hysteresis for increased noise immunity, and input sensitivity of 200 mV over a common-mode input voltage range from C 0.3 V to 5.5 V. When the inputs are open circuited, the outputs are in the high logic state.

每个器件具有增加抗噪声接收器高输入阻抗和输入滞后，以及投入200毫伏以上的共模输入电压范围从C 0.3 V至5.5五，当输入开路时，输出的是高灵敏度逻辑状态。

The charge control method is: input the battery module and the rectifier transformer to one of the first and second plug base; and using the first voltage detector and the second voltage detector to judge the input voltage of the first and second plug base, so to relatively control the conducting state of the first switch, the second switch, the third switch and the fourth switch, and so to make the rectifier transformer charge the battery module through the control of charge current in the charger.

该充电控制方法，是将电池模块及整流变压器分别输入第一及第二插座其中之一；并由第一及第二电压侦测器判断第一插座及第二插座的输入电压，以相对控制第一开关、第二开关、第三开关及第四开关的导通状态，使整流变压器可经由充电器的充电电流控制对电池模块进行充电。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。