Arduino与Proteus仿真实例-L293D驱动直流电机仿真

L293D驱动直流电机仿真

L293D 是市场上最受欢迎的驱动程序之一。 L293D成为用户首选的驱动器有几个原因，例如：价格便宜（与其他驱动器相比）、合适的形状和尺寸、易于控制、无需保护电路和二极管、无需散热器和良好的电阻温度和高速变化。该IC可以设置电压在5V到36V之间，电流高达600mA的电机。但是，它可以在 100 微秒内承受高达 1200 mA 的电流并且不重复。该 IC 的频率为 5 kHz。

每个输出都是一个完整的图腾柱驱动电路，带有一个达林顿晶体管接收器和一个伪达林顿源。驱动程序成对启用，驱动程序 1 和 2 由 1,2EN 启用，驱动程序 3 和 4 由 3,4EN 启用。 L293 和 L293D 的工作温度范围为 0°C 至 70°C。

L293D 的其他重要功能包括：

宽电源电压范围：4.5V 至 36V
独立的输入逻辑电源
内部ESD保护
高抗噪输入
每通道输出电流 1 A（L293D 为 600 mA）
每通道峰值输出电流 2 A（L293D 为 1.2 A）
用于电感瞬态抑制的输出钳位二极管 (L293D)

L293D的引脚功能如下：

L293D的控制真值表如下：

1、仿真电路原理图

2、仿真代码实现

本次使用到如下开源库：

Arduino_L293

演示代码如下：

/\*
 \* Bidirectional Motor Control with standalone L293
 \*
 \* Example of using L293 library to control one or more DC Birirectional Motors with the standalone configuration of the L293
 \*
 \* Created by Giuseppe Masino, 25 may 2016
 \* Author URL http://www.facebook.com/dev.giuseppemasino
 \*
 \* This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.
 \* To view a copy of this license, visit http://creativecommons.org/licenses/by-sa/4.0/.
 \* -----------------------------------------------------------------------------------
 \*
 \* Things that you need:
 \* - Arduino\Genuino MEGA2560
 \* (any Arduino\Genuino board can be used, the important is that the L293 pin 1 is connected to a PWM-enabled pin of Arduino)
 \* (on the Arduino MEGA2560 all pins from 2 to 13 are PWM-enabled)
 \* (use of pin 13 is discouraged because it can cause issues when the board resets)
 \*
 \* - L293
 \* - A DC Birirectional Motor (max 5V-4mA)
 \*
 \* -----------------------------------------------------------------------------
 \*
 \* The circuit ( standalone version ):
 \* - Arduino pin 2 -> L293 pin 1
 \* - Arduino pin 3 -> L293 pin 2
 \* - Arduino pin 4 -> L293 pin 7
 \* - Arduino GND -> L293 pin 4, 5
 \* - Arduino 5V -> L293 pin 16, 8
 \*
 \* - L293 pin 3 -> a terminal of the motor
 \* - L293 pin 6 -> the other terminal of the motor
 \*
 \* The circuit ( twoWire version ):
 \* https://github.com/qub1750ul/Arduino\_L293/blob/master/extras/L293\_twoWire.svg
 \*
 \*/

// by default this example uses the standalone version of the library
// comment out the following row to switch to the twoWire version
#define use\_standalone

// import the library in the sketch
#include <L293.h>

// give a name to the pins that we use
const int IN1 = 2;    // that is the pin that we use to control the motor's speed
const int IN2 = 3; // this is the pin that we use to tell the motor to go forward
const int EN1 = 4; // this is the pin that we use to tell the motor to go reverse

const int IN3 = 6;    // that is the pin that we use to control the motor's speed
const int IN4 = 7; // this is the pin that we use to tell the motor to go forward
const int EN2 = 5; // this is the pin that we use to tell the motor to go reverse

L293 motor1( EN1, IN1, IN2 );
L293 motor2( EN2, IN3, IN4 );


void setup()
{
  // nothing to do in setup()
}

void loop()
{
  motor1.forward( 255 ); // set the direction and the speed of the motor
  motor2.forward( 255 ); // set the direction and the speed of the motor
  delay( 1000 );        // wait for 1 second before doing else
  motor1.back( 255 );    // set a new direction and the speed of the motor
  motor2.back( 255 );    // set a new direction and the speed of the motor
  delay( 1000 );        // wait for 1 second before doing else
  motor1.stop();         // stop the motor
  motor2.stop();         // stop the motor
  delay( 1000 );        // wait for 1 second before doing else

  // now the loop restarts
}