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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…

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Adding Digital control to Dual tracking LM317 / LM337 Bench supply I've been working on my own idea for a digitally controlled power supply over the last couple of weeks, originally using a MIC29302 which didn't look too bad, and a handful of DACs an…

Most engineers know that they can use an inexpensive, three-terminal adjustable regulator, such as Fairchild Semiconductor’s LM317, as an adjustable regulator to only some necessary value of voltage, such as 36 or 3V. This value cannot be less than 1…

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…

DDN(Digital Data Network,数字数据网)是一种利用光纤.数字微波或卫星等数字传输通道和数字交叉复用设备组成的数字数据传输网.它可以为用户提供各种速率的高质量数字专用电 数字数据网(ddn 数字数据网(ddn 路和其他新业务,以满足用户多媒体通信和组建中高速计算机通信网的需要. 数字数据网主要由六个部分组成:光纤或数字微波通信系统:智能节点或集线器设备:网络管理系统:数据电路终端设备:用户环路:用户端计算机或终端设备. 它的主要作用是向用户提供永久性和半永久性连接的数字数据传…

https://en.wikipedia.org/wiki/Secure_Digital#Technical_details Secure Digital (SD) is a non-volatile memory card format developed by the SD Card Association (SDA) for use in portable devices. The standard was introduced in August 1999 by joint effort…

mbed的IO操作非常灵活,常见的关于Digital IO操作整理如下表 ,其中蓝色字体是构造函数,绿色字体的是操作符重载,使用时只要创建对象,就可以调用对应的方法来操作,并且每种都提供了操作符重载,使用上更加灵活 DigitalIn DigitalIn (PinName pin) 构造函数,创建连接到指定Pin的DigitalIn对象 DigitalIn (PinName pin, PinMode mode) 构造函数,同上,指定了PinMode int read () 读Pin状态,返回0…

Background The digital root of a positive integer is found by summing the digits of the integer. If the resulting value is a single digit then that digit is the digital root. If the resulting value contains two or more digits, those digits are summed…