IR-IRS2092-1700W单路D类音频功率放大方案

IR IRS2092 1700W 单路 D 类音频功率放大方 案 2012 10 30 22 37 47 分类 默认分类 字号 订阅 IR 公司的 IRS2092 是集成了 PWM 调制器和保护的高压高性能 D 类音频放大器 工作频率高达 800kHz 100 V 额定电压是可提供 500W 输出功率 主要用在家庭影院 密你立体声系统 通用音频 放大器等 本文介绍 IRS2092 主要特性 方框图 典型连接图 典型应用电路图以及 1700W 单路 D 类音频 功率放大器框图 主要特性 电路图和材料清单 The IRS2092 is a high voltage high performance Class D audio amplifier driver with PWM modulator and protection In conjunction with two external MOSFET and a few external components a complete Class D audio amplifier with protection can be realized International Rectifier s proprietary noise isolation technology allows high current gate drive stage and high speed low noise error amplifier reside on a single small silicon die Open elements of PWM modulator section allow flexible PWM topology implementation IRS2092 主要特性 Integrated analog input Class D audio amplifier driver in a small 16 pin package Floating inputs enable easy half bridge implementation Programmable bidirectional over current protection with self reset function Programmable preset deadtime for improved THD performances Start and stop click noise reduction High noise immunity 100 V ratings deliver up to 500 W in output power Operates up to 800 kHz RoHS compliant IRS2092 典型应用 Home theater systems Mini component stereo systems Powered speaker systems General purpose audio power amplifiers 图 1 IRS2092 方框图 图 2 IRS2092 典型连接图 图 3 IRS2092 典型应用电路图 1700W 单路 D 类音频功率放大器 IRAUDAMP9 1 7 kW 2 Single Channel Class D Audio Power Amplifier Using the IRS2092S and IRFB4227 The IRAUDAMP9 reference design is a single channel 1 7 kW 2 load half bridge Class D audio power amplifier This reference design demonstrates how to use the IRS2092S Class D audio controller and external gate buffer to implement protection circuits and design an optimum PCB layout using the IRFB4227 x 2 Pairs TO 220 MOSFETs This reference design may require additional heatsink or fan for normal operation one eighth of continuous rated power The reference design provides all the required housekeeping power supplies for ease of use The 1 channel design is capable of delivering higher than its rated power with provision of larger heat sink Rth 2 C W 1700W 单路 D 类音频功率放大器主要应用 Pro Audio amplifiers Powered speakers Active Sub woofers P A Systems Car audio amplifiers Musical Instrument amplifier 1700W 单路 D 类音频功率放大器主要特性 Output Power 1 7 kW Single channel 2 load 1kHz THD N 10 Residual Noise 290 V IHF A weighted AES 17 filter Distortion 0 07 THD N 600W 2 Efficiency 97 1 7 kW 2 Multiple Protection Features Output Over current protection OCP high side and low side Input Over voltage protection OVP Input Under voltage protection UVP Output DC offset protection DCP Over temperature protection OTP PWM Modulator Self oscillating half bridge topology with optional clock synchronization 图 4 1700W 单路 D 类音频功率放大器功能方框图 图 5 1700W 单路 D 类音频功率放大器外形图 图 5 IRS2092S 保护电路功能框图 图 6 1700W 单路 D 类音频功率放大器测试图 图 7 1700W 单路 D 类音频功率放大器电路框图 图 8 1700W 单路 D 类音频功率放大器电路图 1 图 9 1700W 单路 D 类音频功率放大器主板输入 输出电源连接图 图 10 1700W 单路 D 类音频功率放大器主板电路图 1 图 9 1700W 单路 D 类音频功率放大器子板电路图