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您好！
以下为采用LM2611电源芯片，设计+5V转-15V电源转换电路，在测试中发现，输出是18V，而非想要设计的15V，故想请问一下是什么原因，采用的反馈电阻及计算公式都已标识在下图中，盼望解惑，非常感谢！
C226去掉试试。
