电压比较器

If revolution speed is equality to positing revolution speed, it will start-up A/D converter and start measure voltage.

若测量的转速经比较与设定的转速值相等时，便启动A/D转换器，进行电压测量。

In this paper,the effects of environmental temperature and carrier frequency on working states of inverters is analyzed.

分析了环境温度、载波频率参数对变频器工作状态的影响，并对泵升电压的限制进行了探讨，结果表明：注重运行环境，设定正确的运行参数，将会取得比较满意的运行效果。

The thesis also introduced the principle and the parameter of urrent-sensor, expounded the running principle of cycloconverter, and described the waveshape of the output voltage and current. moreover, this paper introduced the technology of the data collect,too.

本文还介绍了霍尔电流传感器的工作原理及传感器的各种参数，阐述了交-交变频器的工作原理，对其输出电流电压波形做了简单的描绘，此外，本文对数据采集技术也作了比较详细的说明。

Eatures · Compatible with MCS-51 Products · 2K Bytes of Reprogrammable Flash Memory – Endurance: 1,000 Write/Erase Cycles · 2.7V to 6V Operating Range · Fully Static Operation: 0 Hz to 24 MHz · Two-Level Program Memory Lock · 128 x 8-Bit Internal RAM · 15 Programmable I/O Lines · Two 16-Bit Timer/Counters · Six Interrupt Sources · Programmable Serial UART Channel · Direct LED Drive Outputs · On-Chip Analog Comparator · Low Power Idle and Power Down Modes Description The AT89C2051 is a low-voltage, high-performance CMOS 8-bit microcomputer with 2K Bytes of Flash programmable and erasable read only memory.

eatures ·兼容MCS - 51的产品·及2k字节的编程快闪记忆体-耐力： 1 000写/擦除周期·在2.7 V至6 V的操作范围·完全静态的运作： 0 Hz至24兆赫·两个层次的程式记忆体锁· 128 × 8位内部RAM · 15个可编程I / O线·两个16位定时器/计数器· 6中断源·可编程串行UART的频道·直接驱动LED产出·单晶片模拟比较·低功耗的闲置和掉电模式描述该AT89C2051的是一个低电压，高性能的CMOS 8位微机与及2k字节的Flash可编程和可擦除唯读记忆体。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。