有tlv5638 DA转换后,然后通过该电路。以实现电压可控输出。
但是,无论DA如何改变,,输出都是钳在10.12v
而且前面op07输出为反电压。
请大家能给出比较的好的分析,和修改意见。(Ps:opa544我是用正负12V供电的,只要求能输出0-10V就OK了。不知,直接用opa544接DA输出行不行)
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