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(ExpressProject "Collection of PWM switch circuits" (ProjectVersion "19981106") (ProjectType "Analog or A/D Mixed Mode") (Folder "Design Resources" (Folder "Library" (File "D:\OrC

.ALIASES R_rLf rLf(1=N13978 2=N14796 ) CN @CHAPTER 2_1.boost PWM switch large signal(sch_1):INS15661@ANALOG.R.Normal(chips) V_Vin Vin(+=N13978 -=0 ) CN @CHAPTER 2_1.boost PWM swi

@OrCAD Simulation Server Version: 1.0 @Settings: 2 1 @General: ProfileName= "boost PWM switch small-signal" ProfileFile= "boost pwm switch small-signal.sim" Connectivity= "boost PWM switch sm

** Profile: "boost PWM switch small-signal-boost PWM switch small-signal" [ D:\Christophe\Livres\Spice simus 2\OrCAD book distribution\Chapitre2\chapter2_1\chapter 2_1-pspicefiles\boost pwm switch sm

.ALIASES X_U1 U1(1=A 2=P 3=C 4=P d=D0 ) CN @CHAPTER 2_1.boost PWM switch +small-signal(sch_1):INS29651@APPLICATION.DCXFMR.Normal(chips) E_E1 E1(OUT+=A OUT-=0 ) CN @CHAPTER 2_1

C51 COMPILER V7.02b PWM 12/10/2005 20:24:09 PAGE 1 C51 COMPILER V7.02b, COMPILATION OF MODULE PWM OBJECT MODULE PLACED IN PW

/* 1、学习目的：利用定时器产生PWM，了解原理和使用方法 2、硬件要求：LED灯 定时器 3、试验现象：LED灯由亮到灭，由灭到亮逐步变化，也就是调光现象 */ #include sbit LED = P2^2; unsigned char CYCLE; //定义周期 该数字X基准定时时间 如果是10 则周期是10 x 0.1ms unsigned

C51 COMPILER V7.02b PWM 12/10/2005 20:24:09 PAGE 1 C51 COMPILER V7.02b, COMPILATION OF MODULE PWM OBJECT MODULE PLACED IN PW

Record=TopLevelDocument|FileName=温度控制PWM.SchDoc

#include sbit p1_2=P1^2; sbit p1_5=P1^5; int setnumber,count; void pwm(int number) int number; { setnumber=number; /*有效脉冲的个数等于设定的值*/ TMOD=0x01; TH0=0xfc; TL