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PCB相关 pcb layout规则
LAYOUT REPORT .............. 1
 
目錄.................. 1
 
 
1. PCB LAYOUT 術語解釋(TERMS)......... 2
 
 
2. Test Point : ATE 測試點供工廠ICT 測試治具使用............ 2
 
 
3. 基準點 (光學點) -for SMD:........... 4
 
 
4. ...
电源技术 智能电网安全性
Abstract: The rapid build out of today's smart grid raises a number of security questions. In this article,we review two recent well-documented security breaches and a report of a security gap. These situationsinclude a 2009 smart-meter hack in Puerto Rico; a 2012 password discovery in grid di ...
电源技术 Lakewood (MAXREFDES7#)3.3V Input, ±12V (±15V) Output Isolated Power Supply
Abstract: This document details the Lakewood (MAXREFDES7#) subsystem reference design, a 3.3V input, ±12V (±15V) output, isolated power supply. The Lakewood reference design includes a 3W primary-side transformer H-bridge driver for isolated supplies, and two wide input range and adjus ...
电源技术 电感开关稳压器提高输入电压
Abstract: Uses the MAX641 switching controller and an external discrete charge pump to step up the input voltage. This circuitcan service low loads and is efficient when the output is two, three, four times the input voltage. Adding the MAX627 MOSdriver can further increase the output current capa ...
电源技术 双x波段电压控制振荡器研究
In this paper, two types of MMIC voltage controlled oscillators have been successfully demonstrated. The first chip with single tuning diode shows the excellent tuning linearity. The second chip with two tuning diodes can improve the tuning bandwidth.
电源技术 简单、高效USB电源管理IC解决方案
 
Linear Technology offers a variety of devices that simplifyconverting power from a USB cable, but the LTC®3455represents the highest level of functional integration yet. The LTC3455 seamlessly manages power flowbetween an AC adapter, USB cable and Li-ion battery,while complying with U ...
电源技术 MAX14885E VGA交叉开关电源排序
 
The MAX14885E, a 2:2 VGA switch, connects a VGA source to a VGA monitor. To ease direct connection to graphics controllers orthe ASIC, the MAX14885E has two supplies: VCC, a 5V ±5% supply, drives the VGA side interface; and the VL supply sets the logicswitching thresholds on the di ...
电源技术 快速,高效,独立型NiMH,NiCd电池充电
 
Although recent popular attention is focused on LithiumIon batteries, one must not forget that other batterychemistries, such as Nickel Cadmium (NiCd) and NickelMetal Hydride (NiMH) have advantages in rechargeablepower systems. Nickel-based batteries are robust, capableof high discharge r ...
电源技术 无需检测电阻的小型DFN封装电路断路器
 
Traditionally, an Electronic Circuit Breaker (ECB) comprisesa MOSFET, a MOSFET controller and a current senseresistor. The LTC®4213 does away with the sense resistorby using the RDS(ON) of the external MOSFET. The resultis a simple, small solution that offers a signifi cant lowinserti ...
电源技术 三降压稳压器功能的1-Wire动态可编程输出电压
 
The LTC®3569 is a compact power solution for handhelddevices. Its tiny 3mm × 3mm QFN package includesthree buck regulators with individually programmableoutput voltages. One regulator supports load currentsup to 1200mA, while the other two support currents to600mA. Two regulator ...