http://www.romanblack.com/smps/conv.htm What is it?  This is a simple smps voltage converter, it makes an output voltage of +13.3v from a "standard" +5v supply as used with logic chips. I was contacted by hobby PIC programmer legend Myke Predko …

http://sourceforge.net/projects/openprogrammer/?source=navbar Open Programmer http://openprog.altervista.org/OP_eng.html#Quick Open Programmer v0.8.x Quick facts Completely free and Open Source (including firmware) Programs PIC10-12-16-18-24, dsPIC30…

The TPS54331 is a 28-V, 3-A non-synchronous buck converter that integrates a low RDS(on) high side MOSFET. To increase efficiency at light loads, a pulse skipping Eco-mode™ feature is automatically activated. Furthermore, the 1 µA shutdown supply cur…

Cs5171: Tracking Boost Regulator Adding a current mirror circuit to a typical boost circuit allows the user to select the amount of boost voltage and ensure a constant difference between input and output voltage.   This is useful for high side drive…

http://pdfserv.maximintegrated.com/en/an/AN818.pdf http://www.maximintegrated.com/app-notes/index.mvp/id/818 Digital Adjustment of DC-DC Converter Output Voltage in Portable Applications Abstract: This tutorial discusses methods for digitally adjusti…

Short-circuit protection is an obvious requirement for a power supply, especially when its load connects to a cable that's subject to damage. Many modern power-converter ICs include some means of protection, such as thermal shutdown, against the over…

The schematic in Figure 1 shows a way to increase the power available from a current-limited 5V supply by adding power from a –5V supply. The dc/dc converter generates a single 12V, 150-mA (1.8W) output from two regulated and current-limited input so…

Dual-polarity supply provides ±12V from one IC VC (Pin 1): Error Amplifier Output Pin. Tie external compensation network to this pin or use the internal compensation network by shorting the VC pin to the COMP pin.External compensation consists of pla…

You can easily add margining capability—that is, the ability to digitally adjust the output voltage—to a dc/dc converter by making a single connection to the circuit (Figure 1). The dashed line in the figure shows the connection. The extra IC is a tw…

The MP2359 is a monolithic step-down switch mode converter with a built-in power MOSFET.It achieves 1.2A peak output current over a wide input supply range with excellent load andline regulation. Current mode operation provides fast transient respons…

Single Inductor Buck-Boost Converter in Tiny WCSP The TPS63036 is a non inverting buck-boost converter able to provide a regulated output voltage from an input supply that can be higher or lower than the output voltage. The buck-boost converter is ba…

http://electronicdesign.com/power/simple-addition-permits-voltage-control-dc-dc-converters-output In a standard dc-dc converter, a resistor divider typically defines a fixed output voltage. However, applications like programmable output voltage power…

DIGITALLY ADJUSTABLE BOOST CONVERTER The TPS61045 is a high frequency boost converter with digitally programmable output voltage and true shutdown. During shutdown, the output is disconnected from the input by opening the internal input switch. This…

GENERAL DESCRIPTION    The AX5511 is a current mode step up converter intended for small, low powerapplications. The converter input voltage ranging from 2.6V to 5.5V. The Output voltage can be set up to 27V. The frequency is 1.2MHz allows the use of…

USB限流芯片,5V输入,输出5V电压,限流值可以通过外围电阻进行调节,PWCHIP产品中可在限流范围0.4A-4.8A,并具有过压关闭保护功能. 过压关闭保护: 如芯片:PW1555,USB我们一半插口是5V的,但是有些玩具的产品,小孩或者大人不注意,就把原先玩具的充电器是9V或者12V的接上去时和目前快充市场的品质差的9V,12V,20V快充充电器插上供电异常时,满足了芯片过压保护阈值6V以上,隔断输入和输出,保护后面的电路系统,当重新接上5V正常电源,就能恢复正常输出5V和限流功能.同时在…

一.背景 最近闲来无事,想自己搭建一套Spring+SpringMVC+Mybatis+Mysql的环境(搭建步骤会在以后博客中给出),结果运行程序时,适用@ResponseBody注解进行返回List<对象>的json数据时出现了:nested exception is java.lang.IllegalArgumentException: No converter found for return value of type: class java.util.ArrayList错误,就细细…

spring有2种类型转换器,一种是propertyEditor,一种是Converter.虽然都是类型转换,但是还是有细微差别. 所以这里以一个例子的形式来分析一下这2种类型转换的使用场景和差别. 平常的应用中应该有很多这样的情况,一个po中有一个字段是status,这个status=0时代表成功,status=1时代表失败...虽然这个status可以定义为Integer的类型,但是有时候可能为了方便管理和更面向对象,直接定义了一个TypeStatus的类来表示这个status字段.这个Ty…

起因 最近在对接一个第三方平台.该平台只提供了Java版本的SDK,C#版本的还处于敬请期待状态.由于C#可以复用绝大部分代码,便考虑找一个Java到C#的转换器,在试用了几个软件之后,发现还是Java to C# Converter(下文简称Converter)好用一点.然而基本版功能受限(文件夹不能超过1000行代码,代码片段不能超过100行),高级版的则要$169. 在经历过自己写小程序转换Java.手写代码.利用Converter分批次转换.查找替换等方式完成C#版本之后.终于按捺不住心…

1. converterparameter不是依赖属性,所以不能用binding. 2. 可以把converter 的接口 IValueConverter改为 IMultiValueConverter,实现多个  MultiBinding 3. IMultiValueConverter代码,例如: public class MultiBoolToColorConverter : IMultiValueConverter { public object Convert(object[] value…

Retrofit这东西我就不多做解释了,反正最近应用很广,基本都快和OkHttp一起成为安卓的事实网络访问标准框架了. 这么好的一个东西,官网文档实在是不算太好,说的不太清晰.按官网的经常会有“Could not locate ResponseBody converter for”问题. 反正折腾了一番,终于跑出来了一个例子.这里把正确的例子写出来,方便大家参考. 首先要注意的是Retrofit准确的说不是Anroid 的HttpClient,而是Java的HttpClient,所以用Java工…

package com.xu.javabean; import java.lang.reflect.InvocationTargetException; import java.util.Date; import java.text.ParseException; import java.text.SimpleDateFormat; import org.apache.commons.beanutils.BeanUtils; import org.apache.commons.beanutils…

1. Video Splitter http://www.aone-soft.com/splitter.htm Ultra Video Splitter 是一款视频分割工具.可将一个巨大的AVI/DivX,MPEG I/II,VOB,DAT,WMV,ASF 文件切割或截断成小的片断. 使用前准备: 安装视频解码器(大部分播放器套件会带). Win xp:  XP-Codec-Pack_2.5.3.exe Win 7+: K-Lite Codec Pack --------------------…

目录 . 漏洞描述 . 漏洞触发条件 . 漏洞影响范围 . 漏洞代码分析 . 防御方法 . 攻防思考 1. 漏洞描述 对于PHP应用来说,处于用户的输入并正确划定"数据-代码"边界是十分重要的,黑客常用的攻击思路是在输入数据中注入"定界符(格式视具体场景而定)",从而将输入的数据转换为可被目标系统执行的代码,以此达到代码注入执行的目的.这个的漏洞的根源在代码注释(输入数据)中出现换行(定界符),导致代码注入执行 Relevant Link: http://p2j.c…

Google : Op-Amp Level Shifter Level shifting a +/- 2.5V signal to 0 - 5V I have a front end module that generates an (ECG) signal that varies from +/-2.5 V. I want to shift this signal to 0 - 5V. What is the best way to do this? First thing to try is…

http://www.win2008workstation.com/windows-server-2008-workstation-converter/ If you don’t want to configure all options to convert Windows Server 2008 to a Workstation manually, sawo now made it possible to use a tool for this. He has done a great jo…

用一个ProcessBar显示电量,低于20%时候,ForeGround为红色,否则为绿色, 页面使用了MVVM绑定到了ViewModel, ProcessBar XAML为 <ProgressBar Maximum=" Value="{Binding RemainPercent}" Foreground="{Binding RemainPercent, Converter={StaticResource ForgroundConverter}}"…

作用:目前将日期转换成string,将string转换成我想要的类型   0509课件里讲 一.数据类型转换在web应用程序中,数据存在两个方向上的转换:1.当提交表单时  表单数据以字符串的形式提交给服务器,在服务器端转换成不同的Java数据类型 2.当需要在页面显示数据时  将不同的Java数据类型转换为对应的字符串格式显示输出 二.Struts2内置的类型转换Struts2内置了常用类型的自动转换功能,支持常见数据类型与字符串之间的转换 三.自定义类型转换1.编写自定义类型转换器,继承St…

Converter<TInput, TOutput> 委托 表示将对象从一种类型转换为另一种类型的方法. 此委托由 Array 类的 ConvertAll<TInput, TOutput> 方法和 List<T> 类的 ConvertAll<TOutput> 方法使用,将集合中的每个元素从一种类型转换为另一种类型.https://msdn.microsoft.com/zh-cn/library/kt456a2y.aspx 语法: public delegat…

一.结构 二.代码 1. package org.jpwh.model.advanced; import java.io.Serializable; import java.math.BigDecimal; import java.util.Currency; /* This value-typed class should be <code>java.io.Serializable</code>: When Hibernate stores entity instance dat…

Frequently when I am talking about the VCL or FireMonkey I get some of these common questions: Is VCL deprecated? Which is better FMX or VCL? If I am starting a new app today, should I use VCL or FMX? The first is easy to answer, the other two are a…