国产毛片a精品毛-国产毛片黄片-国产毛片久久国产-国产毛片久久精品-青娱乐极品在线-青娱乐精品

Fairchild FAN9611 300W雙路BCM PFC電源解決方案

發(fā)布時間:2012-5-18 14:16    發(fā)布者:1770309616
關(guān)鍵詞: BCM , Fairchild , FAN9611 , PFC , 電源
Fairchild公司的FAN9611/12是交叉雙路邊界導通模式(BCM) PFC控制器,控制輸出功率從300W到大于800W,允許使用較便宜二極管而不犧牲效率,由于波紋電流相互抵消和開關(guān)頻率的加倍,使得輸入和輸出濾波器更小,主要用在100-1000W AC/DC電源,大屏幕LCD-TV,PDP-TV,PR-TV電源,高效臺式計算機和服務器電源以及太陽能微逆變器.本文介紹了FAN9611/12主要特性,方框圖,典型應用電路圖,以及300W交叉雙路BCM小尺寸PFC評估板主要特性,電路圖,材料清單和PCB元件布局圖.

The FAN9611/12 family of interleaved dual Boundary-Conduction-Mode (BCM) Power-Factor-Correction (PFC) controllers operate two parallel-connected boost power trains 180° out of phase. Interleaving extends the maximum practical power level of the control technique from about 300W to greater than 800W. Unlike the continuous conduction mode (CCM) technique often used at higher power levels, BCM offers inherent zerocurrent switching of the boost diodes, which permits the use of less expensive diodes without sacrificing efficiency. Furthermore, the input and output filters can be smaller due to ripple current cancellation and effective doubling of the switching frequency.

The converters operate with variable frequency, which is a function of the load and the instantaneous input /output voltages. The switching frequency is limited between 16.5kHz and 525kHz. The Pulse Width Modulators (PWM) implement voltage-mode control with input voltage feedforward. When configured for PFC applications, the slow voltage regulation loop results in constant on-time operation within a line cycle. This PWM method, combined with the BCM operation of the boost converters, provides automatic power factor correction.

The controllers offers bias UVLO (10V / 7.5V for FAN9611 and 12.5V / 7.5V for FAN9612), input brownout, over-current, open-feedback, output overvoltage, and redundant latching over-voltage protections.

Furthermore, the converters’ output power is limited independently of the input RMS voltage. Synchronization between the power stages is maintained under all operating conditions.

FAN9611/12主要特性:

 Sync-Lock™ Interleaving Technology for 180° Out-of-Phase Synchronization Under All Conditions

 Automatic Phase Disable at Light Load

 Dead-Phase Detect Protection

 2.0A Sink, 1.0A Source, High-Current Gate Drivers

 High Power Factor, Low Total Harmonic Distortion

 Voltage-Mode Control with (VIN)2 Feedforward

 Closed-Loop Soft-Start with User-Programmable Soft-Start Time for Reduced Overshoot

 Minimum Restart Frequency to Avoid Audible Noise

Maximum Switching Frequency Clamp

 Brownout Protection with Soft Recovery

 Non-Latching OVP on FB Pin and Latching Second-Level Protection on OVP Pin

 Open-Feedback Protection

 Power-Limit and Current Protection for Each Phase

 Low Startup Current of 80μA Typical

 Works with DC and 50Hz to 400Hz AC Inputs

FAN9611/12主要應用:

 100-1000W AC-DC Power Supplies

 Large Screen LCD-TV, PDP-TV, RP-TV Power

 High-Efficiency Desktop and Server Power Supplies

 Networking and Telecom Power Supplies

 Solar Micro Inverters

圖1.FAN9611/12方框圖

圖2.FAN9611/12典型應用電路圖

圖3.FAN9611/12交叉BCM PFC應用電路圖

FAN9611 300W交叉雙BCM小尺寸PFC評估板

This FAN9611 evaluation board uses a four-layer Printed Circuit Board (PCB) designed for 300W (400V/0.75A) rated power. The maximum rated power is 350W and the Maximum On-Time (MOT) power limit is set to 360W. The FEBFAN9611_S01U300A is optimized to demonstrate all the FAN9611 efficiency and protection features in a lowprofile height form factor less than 18mm.

FAN9611 300W評估板主要特性:

 180° Out-of-Phase Synchronization

 Automatic Phase Disable at Light Load

 1.8A Sink, 1.0A Source, High-Current Gate Drivers

 Transconductance (gM) Error Amplifier for Reduced Overshoot

 Voltage-Mode Control with (VIN)2 Feed-Forward

 Closed-Loop Soft-Start with Programmable Soft-Start Time for Reduced Overshoot

 Minimum Restart Timer Frequency to Avoid Audible Noise

 Maximum Switching Frequency Clamp

 Brownout Protection with Soft Recovery

 Non-Latching OVP on FB Pin and Second-Level Latching Protection on OVP Pin

 Open-Feedback Protection

 Over-Current and Power-Limit Protection for Each Phase

 Low Startup Current: 80μA Typical

 Works with DC input or 50Hz to 400Hz AC Input


圖4.FAN9611 300W評估板外形圖:尺寸152mm x 105mm

FAN9611 300W評估板指標:


圖5.FEBFAN9611_S01U300A 300W評估板電路圖

圖6.浪涌電流限制電路

300W評估板材料清單:





圖7.300W評估板PCB元件布局圖:頂層

圖8.300W評估板PCB元件布局圖:底層
詳情請見:
FAN9611.pdf (1.61 MB)
FEBFAN9611_S01U300A.pdf (2.28 MB)

來源:網(wǎng)絡
本文地址:http://m.qingdxww.cn/thread-91708-1-1.html     【打印本頁】

本站部分文章為轉(zhuǎn)載或網(wǎng)友發(fā)布,目的在于傳遞和分享信息,并不代表本網(wǎng)贊同其觀點和對其真實性負責;文章版權(quán)歸原作者及原出處所有,如涉及作品內(nèi)容、版權(quán)和其它問題,我們將根據(jù)著作權(quán)人的要求,第一時間更正或刪除。
您需要登錄后才可以發(fā)表評論 登錄 | 立即注冊

廠商推薦

  • Microchip視頻專區(qū)
  • Chiptorials——如何使用ATECC608 TrustFLEX實現(xiàn)公鑰輪換
  • Chiptorials ——使用ATECC608 TrustFLEX實現(xiàn)基本非對稱身份驗證
  • 無線充電基礎(chǔ)知識及應用培訓教程
  • Chiptorials ——如何將CryptoAuthLib庫用于Microchip安全身份驗證IC
  • 貿(mào)澤電子(Mouser)專區(qū)

相關(guān)視頻

關(guān)于我們  -  服務條款  -  使用指南  -  站點地圖  -  友情鏈接  -  聯(lián)系我們
電子工程網(wǎng) © 版權(quán)所有   京ICP備16069177號 | 京公網(wǎng)安備11010502021702
快速回復 返回頂部 返回列表
主站蜘蛛池模板: 国产日韩欧美一区二区 | 久久久这里只有精品加勒比 | 成人第四色 | 母亲的朋友在线观看 | 亚洲国产成人久久 | 玖玖在线精品 | 国产一级黄色大片 | 欧美一本 | 亚洲精品人成网在线播放蜜芽 | 中文字幕日本久久2019 | 成人伊人青草久久综合网 | 日韩毛片免费 | 亚洲成人黄色片 | 最新在线精品国自拍视频 | 亚洲天天综合 | 日韩中文字幕在线亚洲一区 | 99视频国产热精品视频 | 久草视频一区 | 无遮挡又黄又刺激的视频 | 不卡伦理| 日韩孕妇孕交在线视频 | 欧美激情一区二区三区在线 | 久久只这里是精品66 | 91精品国产麻豆国产自产在线 | 91在线视频一区 | 男女羞羞的视频网站在线观看 | 国产成人综合精品一区 | 特黄特黄| 久草精品在线播放 | 久久a 热6| 综合亚洲欧美日韩一区二区 | 青青伊人影院 | 国产黄色免费观看 | 韩国一级性生活片 | 在线视频毛片 | 国产精品亚洲精品 | 欧美日韩在线视频 | 久久久国产99久久国产一 | 日韩一区视频在线 | 日本一区二区三区中文字幕视频 | 国产区香蕉精品系列在线观看不卡 |