1、IR IRS2092 1700W單路D類音頻功率放大方案2012-10-30 22:37:47|分類：默認(rèn)分類|字號訂閱IR公司的 IRS2092是集成了PWM調(diào)制器和保護(hù)的高壓高性能D類音頻放大器，工作頻率高達(dá)800kHz，100 V額定電壓是可提供500W輸出功率，主要用在家庭影院，密你立體聲系統(tǒng)，通用音頻放大器等。本文介紹IRS2092主要特性，方框圖，典型連接圖，典型應(yīng)用電路圖以及1700W單路D類音頻功率放大器框圖，主要特性，電路圖和材料清單。The IRS2092 is a high voltage, high performance Class D audio amplifier

2、 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 Rectifiers proprietary noise isolation technology allows high current gate drive stage and high speed low

3、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? Program

4、mable 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 compliantIRS2092典型應(yīng)用：? Home the

5、ater systems? Mini component stereo systems? Powered speaker systems? General purpose audio power amplifiers圖1。IRS2092方框圖圖2。IRS2092典型連接圖圖3。IRS2092典型應(yīng)用電路圖1700W單路D類音頻功率放大器IRAUDAMP9：1.7 kW / 2- Single Channel Class D Audio Power Amplifier Using the IRS2092S and IRFB4227The IRAUDAMP9 reference design is

6、 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

7、. 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 provi

8、sion of larger heat sink ( Rth 2 C / W).1700W單路D類音頻功率放大器主要應(yīng)用：? Pro-Audio amplifiers? Powered speakers? Active Sub-woofers? P.A. Systems? Car audio amplifiersMusical Instrument amplifier1700W單路D類音頻功率放大器主要特性：Output Power: 1.7 kW Single channel (2 load, 1kHz, THD+N=10%),Residual Noise: 290V, IHF-A weig

9、hted, AES-17 filterDistortion: 0.07% THD+N 600W, 2Efficiency: 97% 1.7 kW, 2Multiple Protection Features: Output Over-current protection (OCP), high side and low sideInput 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圖4。1700W單路D類音頻功率放大器功能方框圖圖5。1700W單路D類音頻功率放大器外形圖圖5。IRS2092S保護(hù)電路功能框圖圖6。1700W單路D類音頻功率放大器測試圖圖7。