IR IRAUDPS1 250W-1000W D类音频功放电源设计方案
IRAUDPS1
12V System 250W-1000W Scalable Audio Power Supply For Class D Audio Power Amplifiers Using the IR2085 self oscillating gate driver And Direct FETS IRF6648
图1. IRAUDPS1参考设计外形图
The IRAUDPS1 reference design is a 12 volts systems Audio Power Supply for automotive applications designed to provide voltage rails (+B and –B) for Class D audio power amplifiers
This reference design demonstrates how to use the IR2085 as PWM and gate driver for a Push-Pull DC to DC converter, along with IR’s Direct FETS IRF6648.
The resulting design uses a compact design with the Direct FETS and provides all the required protections.
IRAUDPS1 is a scalable power output design, and unless otherwise noted, this user’s manual is based on the 500W model
图2.IRAUDPS1 方框图
图3. IR2085 模块电路图
图4.IRAUPS1主板电路图
IRS2085模块材料清单(BOM):
IRAUPS1 500W主板材料清单(BOM):
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