Power-converter-circuit
国际电气工程先进技术译丛 电力变流器电路
本书揭示了整流、逆变、周波变流和变流电路的所有关键组分——描述其通断，电压和电流的关系，还有变流器的性质、运行、控制和性能及其实际应用。书中的许多方法基于经典数学，同时包含了大量有解的数字例题。本书主要介绍了单相和三相AC-DC整流器电路，功率因数和谐波性能，不同的DC-AC逆变器电路，PWM调制器和相位可控矩阵AC-AC周波变流器电路，降压、升压和降升压DC-DC变流器电路，以及用于DC-DC电路的开关模式变流器电源(International Electrical Engineering advanced technology on power converter circuit
This book reveals all the key components of the rectifier, inverter, Zhou Bo converter and converter circuit, which describes the relationship between the current and voltage, current and voltage, as well as the nature, operation, control and performance of the converter and its application. Many methods in the book based on classical mathematics, also contains a large number of digital solutions for example. This book mainly introduces the single-phase and three-phase AC-DC rectifier circuit, power factor and harmonic performance, different DC-AC inverter circuit, PWM modulator and phase controllable matrix AC-AC frequency converter circuit, buck, boost and drop boost DC-DC converter circuit, and for the DC-DC circuit switch mode converter power supply)
- 2015-12-24 16:23:03下载
- 积分：1
ADSL宽带拨号 (C#)实例源码下载
实例截图： 部分源码：using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;using Lqarpjj.Study.Demo.ADLSTool.Class;using System.Diagnostics;using System.IO;using Microsoft.Win32;namespace Lqarpjj.Study.Demo.ADLSTool{ public partial class frmMain : Form { #region 自定义变量 /// /// 静态变量存储信息的地址文件 /// private static string ADSLPath = Application.StartupPath @"ADSL.ini"; private static string ConnectionsPath = Application.StartupPath @"create.vbs"; /// /// 定义Ini写入对象 /// private IniWrite ini = new IniWrite(ADSLPath); /// /// 判断第一登录 /// private bool IsFirst = true; /// /// /// private MD5.DES.Md5Class md5 = new MD5.DES.Md5Class(); /// /// /// public static string key = null; #endregion /// /// 构造函数 /// public frmMain() { InitializeComponent(); } #region 窗体事件 /// /// 窗体初始 /// /// /// private void frmMain_Load(object sender, EventArgs e) { SetToolTip(); IntiLoad(sender, e); } #endregion #region 控件按钮事件 /// /// 复制账号 /// /// /// private void btnCopyAccount_Click(object sender, EventArgs e) { if (this.chkSpecial.Checked)//判断特殊拨号是否勾选 { //进行加密 UsernameEncode encode = new UsernameEncode(); Clipboard.SetDataObject(encode.EncodeUsername(this.txtAccount.Text, this.txtPassword.Text)); } else { Clipboard.SetDataObject(this.txtAccount.Text); } MessageBox.Show("账号已经复制到剪贴板！", "复制成功"); } /// /// 拨号 /// /// /// private void btnDia_Click(object sender, EventArgs e) { if (this.txtAccount.Text.Trim() == "") { MessageBox.Show("账号不能为空", "输入错误"); txtAccount.Focus(); return; } if (this.txtPassword.Text.Trim() == "") { MessageBox.Show("密码不能为空", "输入错误"); txtPassword.Focus(); return; } this.NetDia(); } /// /// 找不到电话簿？ /// /// /// private void lblNotFind_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e) { this.CreateConnections(); } /// /// 记住账号联动 /// /// /// private void chkRemAccount_CheckedChanged(object sender, EventArgs e) { if (!this.chkRemAccount.Checked) { this.chkRemPassword.Checked = false; } } /// /// 记住密码联动 /// /// /// private void chkRemPassword_CheckedChanged(object sender, EventArgs e) { if (this.chkRemPassword.Checked) { this.chkRemAccount.Checked = true; } } /// /// 自动登录启动 /// /// /// private void AutoConectTimer_Tick(object sender, EventArgs e) { this.AutoConectTimer.Enabled = false; new frmLinkInfo(this).Show(); base.Hide(); } #endregion #region 自定义方法 /// /// 初始登录 /// /// /// private void IntiLoad(object sender, EventArgs e) { FileInfo info = new FileInfo(ADSLPath); try { if (info.Exists) { this.ReadConfig(); } if (this.chkAutoDia.Checked)//是否自动登录 { this.AutoConectTimer.Start(); } } catch (Exception) { File.Delete(ADSLPath); this.frmMain_Load(sender, e); } } /// ///设置控件提示 /// private void SetToolTip() { ToolTip tip = new ToolTip(); tip.BackColor = System.Drawing.Color.Transparent; tip.SetToolTip(this.btnCopyAccount, "复制账号到剪贴板。如果勾选了特殊拨号，复制的则是加密过的账号。"); tip.SetToolTip(this.btnDia, "手动进行拨号。"); tip.SetToolTip(this.chkAutoDia, "勾选后，下次启动将自动拨号。"); tip.SetToolTip(this.chkSpecial, "如果你原本使用协同拨号器拨号，请勾选此项。"); tip.SetToolTip(this.chkRemPassword, "勾选后，将会保存密码信息，同时保存账号信息。"); tip.SetToolTip(this.chkRemAccount, "勾选后，将会保存账号信息，但不会保存密码信息。"); tip.SetToolTip(this.txtPassword, "在这里输入你的密码。如果有字母，有大小写之分。"); tip.SetToolTip(this.lblNotFind, "如果拨号时提示找不到电话簿，请点击这里。"); tip.SetToolTip(this.txtAccount, "在这里输入你的用户名，如果是特殊拨号不分大小写。"); tip.SetToolTip(this.chkAutoClo, "勾选后拨号成功将自动关闭程序，如果拨号失败，则不会自动关闭。"); } /// /// 写入配置信息 /// private void WriteConfig() { this.ini.Writue("用户设置", "记住账号", this.chkRemAccount.Checked.ToString()); this.ini.Writue("用户设置", "记住密码", this.chkRemPassword.Checked.ToString()); this.ini.Writue("用户设置", "特殊拨号", this.chkSpecial.Checked.ToString()); this.ini.Writue("用户设置", "自动连接", this.chkAutoDia.Checked.ToString()); this.ini.Writue("用户设置", "自动关闭", this.chkAutoClo.Checked.ToString()); this.ini.Writue("用户设置", "首次使用", this.IsFirst.ToString()); if (this.chkRemAccount.Checked) { this.ini.Writue("用户信息", "账号", this.md5.Encryption(this.txtAccount.Text)); this.ini.Writue("加密密钥", "账号", key); } if (this.chkRemPassword.Checked) { this.ini.Writue("用户信息", "密码", this.md5.Encryption(this.txtPassword.Text)); this.ini.Writue("加密密钥", "密码", key); } } /// /// 读取配置信息 /// private void ReadConfig() { this.chkRemAccount.Checked = bool.Parse(this.ini.ReadValue("用户设置", "记住账号")); this.chkRemPassword.Checked = bool.Parse(this.ini.ReadValue("用户设置", "记住密码")); this.chkSpecial.Checked = bool.Parse(this.ini.ReadValue("用户设置", "特殊拨号")); this.chkAutoDia.Checked = bool.Parse(this.ini.ReadValue("用户设置", "自动连接")); this.chkAutoClo.Checked = bool.Parse(this.ini.ReadValue("用户设置", "自动关闭")); this.IsFirst = bool.Parse(this.ini.ReadValue("用户设置", "首次使用")); if (this.chkRemAccount.Checked) { this.txtAccount.Text = this.md5.Decryption(this.ini.ReadValue("加密密钥", "账号"), this.ini.ReadValue("用户信息", "账号")); if (this.txtAccount.Text.Trim() == "") { this.txtAccount.Text = null; } } if (this.chkRemPassword.Checked) { this.txtPassword.Text = this.md5.Decryption(this.ini.ReadValue("加密密钥", "密码"), this.ini.ReadValue("用户信息", "密码")); if (this.txtPassword.Text.Trim() == "") { this.txtPassword.Text = null; } } } /// /// 判断是否是第一次使用本软件 /// private void IsFirstUse() { if (this.IsFirst) { if (MessageBox.Show("检测到您是初次使用本软件，是否自动创建一个名为【宽带连接】的连接？如果已经存在，请选否。", "初次使用", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes) { this.CreateConnections(); } this.IsFirst = false; this.WriteConfig(); } } /// /// 连接宽带 /// private void NetDia() { this.IsFirstUse(); new frmLinkInfo(this).Show(); base.Hide(); } /// /// 电话簿 /// private void CreateConnections() { Process[] processArray; StreamWriter writer = new StreamWriter(ConnectionsPath, false, Encoding.Default); writer.Write(this.GetVersion()); writer.Close(); Process process = new Process(); process.StartInfo.FileName = ConnectionsPath; process.StartInfo.CreateNoWindow = true; base.Hide(); process.Start(); process.WaitForExit(); File.Delete(ConnectionsPath); Label_006A: processArray = Process.GetProcesses(); foreach (Process process2 in processArray) { if (process2.ProcessName.ToString() == "rasphone") { goto Label_006A; } } base.Show(); } /// /// 获取版本？ /// /// private string GetVersion() { StringBuilder str = new StringBuilder(); str.Append(""); str.Append("set ws=createobject("wscript.shell") "); str.Append(" ws.run "rasphone -a 宽带连接" "); str.Append(" wscript.sleep 200 "); str.Append(" ws.sendkeys "{t}" "); str.Append(" wscript.sleep 200 "); str.Append(" ws.sendkeys "{n}" "); str.Append(" wscript.sleep 200 "); str.Append(" ws.sendkeys "{enter}" "); str.Append(" wscript.sleep 200 "); str.Append(" ws.sendkeys "{enter}" "); if (Registry.LocalMachine.OpenSubKey(@"SoftwareMicrosoftWindows NTCurrentVersion").GetValue("ProductName").ToString() == "Windows 7 Ultimate") { str.Append(""); str.Append("set ws=createobject("wscript.shell")"); str.Append(" ws.run "rasphone -a 宽带连接""); str.Append(" wscript.sleep 200"); str.Append(" ws.sendkeys "{enter}""); str.Append(" wscript.sleep 200"); str.Append(" ws.sendkeys "{enter}""); } return str.ToString(); } #endregion }}
- 2014-07-16下载
- 积分：1
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