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VCC电压为20V，HT_OPA_OUT为单片机DAC输出(电压范围0-3.3V)，负载为4Ω电阻，最大输出电流4A左右。
请问这个电路能否正常工作？已参考webench给出的设计，但webench没有输出电压可调的选项。另外请问有没有更好的器件型号或其他解决方案？
