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dljs
改程序适应于电力系统短路电流计算，生成节点导纳矩阵和阻抗矩阵。(Change program suitable for power system short-circuit current calculation, to generate the node admittance matrix and the impedance matrix.)
- 2014-09-27 21:37:47下载
- 积分：1
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ads7846
asaasa adxsadsa ssda
- 2011-05-10 21:28:29下载
- 积分：1
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carF340elong
C8051f340 8位pwm波形输出 占空比可调节(C8051f340 8bit output )
- 2014-05-02 16:53:55下载
- 积分：1
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123
本设计主要实现用按键控制步进电机四相单拍、四相双拍和四相八拍三种方式切换，
正、反转及其加、减速，并能在LCD上显示其运行状态（速度和转向）。(The design of the main keys to achieve control of stepper motor with a single shot four-phase, four-phase two-and four-phase eight-shot shoot three ways to switch
Positive, reverse its acceleration, deceleration, and in its operational status on the LCD display (speed and steering).)
- 2011-12-02 20:11:19下载
- 积分：1
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DC-DC
直流斩波变化的仿真和一些参考文献 可以学习一下(The simulation of dc chopper change and some references can learn
)
- 2015-06-04 10:16:13下载
- 积分：1
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digital-display-clock
YL_3串行数码管显示时钟，74HC595，8位，显示时分秒，自动计数。(YL_3 serial digital display clock, 74HC595, 8 bit display minutes and seconds, automatic counting.)
- 2013-07-31 19:28:56下载
- 积分：1
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10-BLDC-PMSM-pid-speed-control
基于stm32单闭环pid调速控制，单电阻采样，正弦波驱动，pid调速。(Based on stm32 pmsm drive, single sampling resistor, sine wave drive, pid speed control.)
- 2021-04-10 18:58:59下载
- 积分：1
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STC12C5A60S2
STC12C5A60S2电子负载全部代码,TM7705做AD TM8211做DA(STC12C5A60S2,TM7705AD TM8211DA)
- 2015-08-22 12:35:21下载
- 积分：1
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按键 步进电机
步进电机是将电脉冲信号转变为角位移或线位移的开环控制电机，是现代数字程序控制系统中的主要执行元件，应用极为广泛。。在非超载的情况下，电机的转速、停止的位置只取决于脉冲信号的频率和脉冲数，而不受负载变化的影响，当步进驱动器接收到一个脉冲信号，它就驱动步进电机按设定的方向转动一个固定的角度，称为“步距角”，它的旋转是以固定的角度一步一步运行的。可以通过控制脉冲个数来控制角位移量，从而达到准确定位的目的；同时可以通过控制脉冲频率来控制电机转动的速度和加速度，从而达到调速的目的。(Stepper motor is an open loop control motor which transforms electrical pulse signal into angular displacement or linear displacement. It is the main executive element in modern digital control system, and is widely applied. In the case of non overloaded, the motor speed and stop position depends only on the pulse frequency and pulse number, regardless of load changes, when the stepper driver receives a pulse signal, it drives stepper motor to set the direction of rotation of a fixed angle, called "step", it is the rotation of the fixed point of the operation step by step. We can control the angular displacement by controlling the number of pulses, so as to achieve the goal of accurate positioning. At the same time, we can control the speed and acceleration of motor rotation by controlling the pulse frequency, so as to achieve the purpose of speed regulation.)
- 2018-01-29 13:24:17下载
- 积分：1
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fengimngqi
基于51单片机的简单c语言小程序，用于蜂鸣器的测试等(Based on 51 single simple small c language program for testing the buzzer)
- 2014-07-28 11:16:31下载
- 积分：1
