IRIRS20921700W单路D类音频功率放大方案

1、IR IRS2092 1700W单路D类咅频功率放人案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 500Wt岀功率，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，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 PeIformanCe Class D audio ampli

2、fier driver With PWMInodUIator 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

3、 low noise error amplifier reside on a SingIe 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 PaCkageFloating inputs enable easy half bridge implementationPrOgramm

4、abIe bidirectional OVer-CUrrent PrOteCtiOn With self-reset functionPrOgrammabIe PreSet deadtime for improved THD PerfOrmanCeSStart and stop click noise reductionHigh noise immunity00 V ratings deliver UP to 500 W in OUtPUt powerOPerateS UP to 800 kHzRoHS compliantIRS2092典型应用:Home theater SyStemS专业资料

5、Mini component Stereo SyStemSPoWered SPeaker SyStemS图1。IRS2092框图GeneraI PUrPOSe audio power amplifiersVAIR S 2092VlAACSHGNoBINIHOCQMPVSCSDVCCVSSLOVErCOMMseTDT-七-IDP图2。IRS2092典型连接图SPeakerOVCCI XTVAACStIGNft谪IN-HoC&UPVCSDVCCVaSLDVHEFCorJ0C5FTDTIRS209222f-:_(Rf64SMURSil20 IVCCTVV -TXV图3。IRS2092典型应用电路图1

6、700W单路D类音频功率放大器IRAUDAMFP9 1.7 kW / 2- SingIe ChanneICIaSS D Audio Power AmPIifier USing the IRS2092S andIRFB4227The IRAUDAMPReference design is a SingIe-ChanneI 1.7-kW ( 2Q load) half-bridge Class D audio power amplifier. ThiS reference design demonstrates how to USe the IRS2092S Class D audio contr

7、oller and external gate buffer, to implement PrOteCtiOn circuits, and design an OPtimUm PCB layout USing the IRFB4227 (X 2 PairS) TO-220 MOSFETSThiS reference design may require additional heatsink or fan for normal OPeratiOn (one-eighth of COntinUOUS rated power). The reference design PrOVideS all

8、the required housekeeping power SUPPIieS for ease of use. The I-ChanneI design isCaPabIe of delivering higher than its rated power With PrOViSiOn of Iarger heat Sink ( Rth LfDlHiid4 buffHLIRS202& ModLi1ShiRlebjfLOhSEtle LlUMeI图4。1700W单路D类音频功率放大器功能框图图5。170OW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75V1 18ADC

9、StJPPly75V118A DCSUPPIy3OCClWINJcIn-induefive eSiStOrI-J 2-0hmJerSnscCH32QlNOrTnal Pro&cticri 肺LAUd EO Signal Generatar图6 o 1700W单路D类音频功率放大器测试图SChematlC DiagranISPnnTn-f9LJ XaKl p,a-CtJ CXjV 舌J90 地EEd QjTGflC2 J-EFT-3-BVXB-PS0EL(MJG图7。170OW单路D类音频功率放大器电路框图FigUre 21 MQther BoArd Schematic Dieyram HeueekMpIna PrCteCtien dnd Velum* CentreI CIfeUit图8。1700W单路D类音频功率放大器电路图（1