IRIRAUDAMP91700W数字D类音频功率放大参考设计
来源： 作者： 发布时间：2015-10-06 06:17:06 浏览量：
放大器" title="放大器">放大器" title="放大器">放大器,扬声器,有源亚低音,功率放大器,汽车音频放大器和乐器放大器.本文介绍了AUIRS2092主要特性,方框图,典型应用电路,以及D类音频功率放大器参考设计IRAUDAMP9功能框图,主板和子板电路图以及材料清单,PCB布局图.
The AUIRS2092 is a h电感器厂家igh 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.
AUIRS2092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
• Leadfree, RoHS compliant
• Automotive Qualified†
AUIRS2092典型应用:
• Automotive mini component stereo systems
• Automotive powered speaker systems
• Automotive audio power amplifiers
图1.AUIRS2092方框图
图2.AUIRS2092典型连接电路图
图2.AUIRS2092 OTA输入噪音电压测量电路图
采用IRS2092S和IRFB4227的1.7 kW / 2-Ω单路D类音频功率放大器参考设计IRAUDAMP9
The IRAUDAMP9 reference design is a single-chan振荡电感器nel 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 i大电流电感厂ts rated power with provision of larger heat sink ( Rth <2?C / W).
参考设计主要特性:
Output Power: 1.7 kW Single channel (2 Ω load, 1kHz, THD+N=10%),
Residual Noise: 290μV, IHF-A weighted, AES-17 filter
Distortion: 0.07% THD+N @ 600W, 2Ω
Efficiency: 97% @ 1.7 kW, 2Ω
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
参考设计应用:
Pro-Audio amplifiers
Powered speakers
Active Sub-woofers
P.A. Systems
Car audio amplifier
Musical Instrument Amplifier
图3.1.7kW音频功率放大器参考设计外形图
图4.1.7kW音频功率放大器参考设计功能框图
图5.1.7kW音频功率放大器参考设计保护电路功能框图
图6.1.7kW音频功率放大器参考设计主板电路图
图7.1.7kW音频功率放大器参考设计主板输入/输出保护电路图
The AUIRS2092 is a h电感器厂家igh 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.
AUIRS2092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
• Leadfree, RoHS compliant
• Automotive Qualified†
AUIRS2092典型应用:
• Automotive mini component stereo systems
• Automotive powered speaker systems
• Automotive audio power amplifiers
图1.AUIRS2092方框图
图2.AUIRS2092典型连接电路图
图2.AUIRS2092 OTA输入噪音电压测量电路图
采用IRS2092S和IRFB4227的1.7 kW / 2-Ω单路D类音频功率放大器参考设计IRAUDAMP9
The IRAUDAMP9 reference design is a single-chan振荡电感器nel 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 i大电流电感厂ts rated power with provision of larger heat sink ( Rth <2?C / W).
参考设计主要特性:
Output Power: 1.7 kW Single channel (2 Ω load, 1kHz, THD+N=10%),
Residual Noise: 290μV, IHF-A weighted, AES-17 filter
Distortion: 0.07% THD+N @ 600W, 2Ω
Efficiency: 97% @ 1.7 kW, 2Ω
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
参考设计应用:
Pro-Audio amplifiers
Powered speakers
Active Sub-woofers
P.A. Systems
Car audio amplifier
Musical Instrument Amplifier
图3.1.7kW音频功率放大器参考设计外形图
图4.1.7kW音频功率放大器参考设计功能框图
图5.1.7kW音频功率放大器参考设计保护电路功能框图
图6.1.7kW音频功率放大器参考设计主板电路图
图7.1.7kW音频功率放大器参考设计主板输入/输出保护电路图
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