IRIRS20921700W单路D类音频功率放大方案

1、IR IRS2092 1700W单路D类音频功率放大方案The2021-10-30 22:37:47|分类：,默认分类|字号 订阅IR公司的IRS2092是集成了PW蜩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HD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 amp

2、lifier driver with PWMInodulator 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 spe

3、ed low noise erroramplifier 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? P

4、rogrammable 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 kHzRoHS compliantIRS2092典型应用:Home

5、 theater systemsMini component stereo systemsPowered speaker systemsGeneral purpose audio power amplifiers B BHOHOVSVSVCCVCCLOLOCOMCOMVREFVREFMWMW&T&T图1 o IRS2092方框图WMWMIH-IH-GNDGNDCOMPCOMPCSD图2。IRS2092典型连接图图3。IRS2092典型应用电路图1700W单HD类音频功率放大器IRAUDAMP9 1.7 kW / 2-Q Single Channel Class D Audio

6、Power Amplifier Using the IRS2092s andIRFB4227The IRAUDAMP9eference design is a single-channel 1.7-kW ( 2Q load) half-bridge Class D audio power amplifier. This reference designdemonstrates how to use the IRS2092S Class D audio controller and external gate buffer, to implement protection circuits, a

7、nd design anoptimum PCB layout using the IRFB4227 (x 2 Pairs) TO-220 MOSFETsThis reference design may require additional heatsink or fan for normaloperation (one-eighth of continuous rated power). The reference design provides all the required housekeeping power supplies for ease ofuse. The 1-channe

8、l design iscapable of delivering higher than its rated power with provision of larger heat sink ( Rth 2C / W).INPUTINPUTIRS2092VUVUCSHCSHGMDGMDVBVBJF4-JF4-MOMOCQMPCQMPV5V5亡SESEVCCVCCVSSVSSLOLOVREFVREFSMSMOCSETOCSETDTDT7 72222pHpHj j ririTL=Q.1=Q.1MF0707p pF F；1 1 n nT1N-1N-COUPCOUPCSDCSD|1|1 VA*VA*

9、CSHCSH2.72.7 kOkO4-VREFVREF GOHGOHOCSETOCSET DTDTIRS20D2WpFWpF1700W单HD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 amplifiersMusical Instrument amplifier1700W单HD类音频功率放大器主要特性：Output Power: 1.7 kW Single channel (2 Q load, 1kHz, THD+N=10%),Residual

10、 Noise: 290gV, IHF-A weighted, AES-17 filterDistortion: 0.07% THD+N 600W, 2 QEfficiency: 97% 1.7 kW, 2 QMultiple 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)

11、,Over-temperature protection (OTP)PWM Modulator: Self-oscillating half-bridge topology with optional clock synchronization图5。1700W单HD类音频功率放大器外形图图4。1700W单HD类音频功率放大器功能方框图RfiodulJio(RfiodulJio(御ididUF4ffHl-siddHl-sidd IMiffiffw w:QMTr-f.l=CET口空松图5。IRS2092s保护电路功能框图IRS2C92S图6。1700W单HD类音频功率放大器测试图75V, 18ADC supply75518A DC supplyAudio Signal Generator2-0hm3 0 00/.hN on -i nduc ti eResiors图7。1700W单HD类音频功率放大器电路框图图8。1700W单HD类音频功率放大器电路图1图10。1700W单HD类音频功率放大器主板电路图1图9。1700W单HD类音频功率放大器主板输入/输出电源连接图；，InterooFioral工融ReelifieiERAUDAXiPKL.ERAUDAXiPKL.