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IRAUDAMP10演示板是一个参考设计仅使用一个IC(IRS2052M)以导出适当的输入信号,放大的音频输入,并实现了双通道280瓦特/通道(4Ω,THD + N=1%)半桥D类音频功率放大器。参考设计演示了如何使用IRS2052M的D类音频控制器和栅极驱动器IC,实现保护电路,并采用IRF6775直接FET的MOSFET设计一个最佳的PCB布局。该参考设计包含了所有必需的家用电源的易用性。两个通道的设计是可扩展的,功率和信道数目。Feature:
- Output Power: 300W x 2 channels (4Ω, THD+N=1%) or 370W x 2 channels (4Ω, THD+N=10%)
- Residual Noise: 220V, IHF-A weighted, AES-17 filter
- Distortion: 0.008% THD+N @ 100W, 4Ω
- Efficiency: 90% @ 300W, 4Ω, single-channel driven, Class D stage
- Multiple Protection Features: Over-current protection (OCP), high side and low side Over-voltage protection (OVP), Under-voltage protection (UVP), high side and low side Over-temperature protection (OTP)
- PWM Modulator: Self-oscillating half-bridge topology with optional clock synchronization
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