|Introduction Basic Concept Tips to layout Power circuit Type of Power circuit Basic Concept Maximum Current calculation Resistance of Copper ideal power supply & noise Capacitor & Inductor Power consumption Function of power circuit
上传时间： 2014-01-04
上传用户：kao21
This document provides practical, common guidelines for incorporating PCI Express interconnect layouts onto Printed Circuit Boards (PCB) ranging from 4-layer desktop baseboard designs to 10- layer or more server baseboard designs. Guidelines and constraints in this document are intended for use on both baseboard and add-in card PCB designs. This includes interconnects between PCI Express devices located on the same baseboard (chip-to-chip routing) and interconnects between a PCI Express device located “down” on the baseboard and a device located “up” on an add-in card attached through a connector. This document is intended to cover all major components of the physical interconnect including design guidelines for the PCB traces, vias and AC coupling capacitors, as well as add-in card edge-finger and connector considerations. The intent of the guidelines and examples is to help ensure that good high-speed signal design practices are used and that the timing/jitter and loss/attenuation budgets can also be met from end-to-end across the PCI Express interconnect. However, while general physical guidelines and suggestions are given, they may not necessarily guarantee adequate performance of the interconnect for all layouts and implementations. Therefore, designers should consider modeling and simulation of the interconnect in order to ensure compliance to all applicable specifications. The document is composed of two main sections. The first section provides an overview of general topology and interconnect guidelines. The second section concentrates on physical layout constraints where bulleted items at the beginning of a topic highlight important constraints, while the narrative that follows offers additional insight.
上传时间： 2013-10-15
上传用户：busterman
Boost LED drivers are often used to drive LEDs in series. If an LED fails while open,overvoltage protection (OVP) is necessary to avoid the damage to a boost integrated circuit (IC) or output capacitor. This application report presents the solutions to increase the TPS61043 LED driver OVP threshold.
标签： Overvoltage Protection Solutions Driver
上传时间： 2013-10-14
上传用户：jiangfire
This product integration guide provides application circuit information for theSmartMesh® LTP5903PC wireless embedded network manager. This guide is acompanion to the 020-0039 SmartMesh LTP5903PC Datasheet, whichdescribes overall product behavior, including detailed information about normaloperating conditions, electrical and mechanical specifications, hardware andsoftware interfaces, and connector pinouts.
标签： Integration Hardware Guide 5903
上传时间： 2013-11-14
上传用户：农药锋6
Abstract: We can apply a BiCMOS integrated circuit with only resistors and no transistors to solve adifficult design problem. The mythically perfect operational amplifier's gain and temperature coefficient aredependent on external resistor values. Maxim precision resistor arrays are manufactured together on asingle die and then automatically trimmed, to ensure close ratio matching. This guarantees that theoperational amplifier (op amp) gain and temperature coefficient are predictable and reliable, even withlarge production volumes.
上传时间： 2014-11-30
上传用户：ynzfm
Linear Technology’s high performance battery management ICsenable long battery life and run time, while providing precision charging control, constantstatus monitoring and stringent battery protection. Our proprietary design techniques seamlesslymanage multiple input sources while providing small solution footprints, faster charging and100% standalone operation. Battery and circuit protection features enable improved thermalperformance and high reliability operation.
上传时间： 2013-10-13
上传用户：yyq123456789
設計時需要過一款簡單、低成本的閂鎖電路 (latch circuit) ？圖一顯示的就是這樣一款電路，基本上是一個可控矽整流器(SCR)，結合了一些離散組件，只需低成本的元件便可以提供電源故障保護。
上传时间： 2013-11-11
上传用户：zq70996813
Abstract: With its small size and large load (10W) capability, the MAX13256 H-bridge transformer driver is an attractive solution forcharging supercapacitors (supercaps). However, a large capacitance on the output of the circuit can force the driver into fault modeat startup, due to the high initial charge current. This application note presents a solution that allows users to charge a largecapacitance without going into fault.
上传时间： 2013-10-20
上传用户：2728460838
Abstract: Some types of loads require more current during startup than when running. Other loads can be limited to a lower-powercurrent during startup but require a higher operating current. This article describes an application circuit that automatically adjusts apower circuit’s overcurrent protection level up or down after startup is complete.
上传时间： 2013-10-23
上传用户：swaylong
VCC:C=circuit 表示电路的意思, 即接入电路的电压; VDD:D=device 表示器件的意思, 即器件内部的工作电压; VSS:S=series 表示公共连接的意思,通常指电路公共接地端电压.
标签： VCC_VDD_VSS
上传时间： 2013-11-22
上传用户：squershop
