完善资料让更多小伙伴认识你,还能领取20积分哦, 立即完善>
IR公司的IR4302和IR4312集成了两路PWM控制器和数字音频MOSFET,组成高性能D类音频放器,其输出功率为100Wx2路(10%THD+N 4Ω 负载,带散热器),60Wx2路(10%THD+N 4Ω ,不带散热器),具有多种保护功能如过流保护(OCP),过压保护(OVP),欠压保护(UVP)和超温保护(OTP),主要用于家庭影院,PC音频系统,卡拉OK放大器,游戏控制器,扬声器系统和通用音频功率放大器。本文介绍了IR4302主要特性,功能方框图,典型应用电路以及采用IR4302的100W / 4欧姆x 2路D类音频功率放大器主要特性,电路图,材料清单和PCB布局图。
The IR4302, IR4312 integrates 2 channel PWM controller and digital audio MOSFETs forming a high performance Class D audio amplifier. As a result of fully optimized MOSFETs co-packed with a dedicated controller IC, the IR4302, IR4312 operates without mechanical heatsink attached in a typical music playback usage. High voltage ratings and noise immunity in the controller IC ensures reliable operation over various environmental conditions. A small 7x7 mm PQFN package enhances the benefit of smaller size of Class D topology. The IR4302, IR4312 are a lead-free, ROHS compliant. IR4302主要特性: 2 channel integrated analog input Class D audio amplifier in a small 7 x 7 mm PQFN44 package No mechanical heatsink required High peak music power output Split or single power supply Differential or single-ended input Over-current, over-temperature and under voltage protections with self-reset feature Start/stop click noise reduction Clip and Fault reporting outputs High noise immunity RoHS compliant IR4302典型应用: Home theatre systems Docking station audio systems PC audio systems Musical instruments Karaoke amplifiers Game consoles Powered speaker systems General purpose audio power amplifiers 20120611111742885.gif 图1.IR4302功能方框图 20120611111742580.gif 图2.IR4302反相放大器连接图 20120611111742795.gif 图3.IR4302差分放大器连接图 20120611111742179.gif 图4.IR4302单电源连接图(反相放大器) 采用IR4302的100W / 4欧姆x 2路D类音频功率放大器 20120611111743420.gif 图5.100W / 4欧姆x 2路D类音频功率放大器IRAUDAMP17外形图 The IRAUDAMP17 reference design is a two-channel, 100W/ch (4 Ω/52V Bus voltage) half-bridge Class D audio power amplifier with single power supply. This reference design demonstrates how to use the IR4302 IC with single power supply, implement protection circuits, and design an optimum PCB layout using PowIRaudio integrated Class D IC. This reference design does not require additional heatsink or fan cooling for normal operation (one-eighth of continuous rated power).The reference design provides all the required housekeeping power supplies for ease of use. The twochannel design is scalable for power and the number of channels. IRAUDAMP17主要特性: Output Power: 100W x 2 channels (10%THD+N 4Ω load; with heatsink), 60W x 2 channels (10%THD+N 4Ω load; no heatsink), Multiple Protection Features: Over-current protection (OCP), high side and low side Over-voltage protection (OVP), Under-voltage protection (UVP), high side and low side Over-temperature protection (OTP) PWM Modulator: Self-oscillating half-bridge topology IRAUDAMP17应用: AV receivers Home theater systems Mini component stereos Powered speakers Sub-woofers Musical Instrument amplifiers Car audio amplifiers IRAUDAMP17主要指标: 20120611111743472.gif 2012061111174362.gif 图6.IRAUDAMP17电路图 IRAUDAMP17材料清单: 20120611111743810.gif 20120611111745497.gif 20120611111745346.gif 图7.IRAUDAMP17 PCB布局图:顶层 20120611111745298.gif 图8.IRAUDAMP17 PCB布局图:底层 详情请见: ir4302[1].pdf(568.68 KB)2012-6-11 12:13 上传 -1 和 iraudamp17[1].pdf(683.43 KB)2012-6-11 12:13 上传 -1 |
|
|
|
只有小组成员才能发言,加入小组>>
793 浏览 0 评论
1152 浏览 1 评论
2528 浏览 5 评论
2861 浏览 9 评论
移植了freeRTOS到STMf103之后显示没有定义的原因?
2711 浏览 6 评论
keil5中manage run-time environment怎么是灰色,不可以操作吗?
1071浏览 3评论
195浏览 2评论
456浏览 2评论
370浏览 2评论
M0518 PWM的电压输出只有2V左右,没有3.3V是怎么回事?
454浏览 1评论
小黑屋| 手机版| Archiver| 电子发烧友 ( 湘ICP备2023018690号 )
GMT+8, 2024-12-22 23:32 , Processed in 1.170250 second(s), Total 79, Slave 59 queries .
Powered by 电子发烧友网
© 2015 bbs.elecfans.com
关注我们的微信
下载发烧友APP
电子发烧友观察
版权所有 © 湖南华秋数字科技有限公司
电子发烧友 (电路图) 湘公网安备 43011202000918 号 电信与信息服务业务经营许可证:合字B2-20210191 工商网监 湘ICP备2023018690号