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tps65130

Other Parts Discussed in Thread: OPA551, TPS65130, TPS65131, PTN04050C, PTN04050A

我们使用TPS65130EVM-063所给的指导电路,输出正负15V。在不接负载的情况下 输出正常,接一个功放正常,但是继续接功放就没有负的输出了。正输出是正常的。

电路没有改变,仅仅改变的是指导电路中的R1 R2 R3 R4的比值。请问什么原因?