目前,我们用UC2845 做一个可以进入恒压模式,也可以进入恒流模式的400W 方案
采用双管正激结构
反馈用两个运放,一个做电压环路的反馈,另外一个用做电流环路的反馈,采用正反馈结构
目前的问题是: 无法恒功率,在恒流模式下,加负载越重,输出功率就越小,
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