M8V6负载的电流取样电阻疑问

kirich

yyji 发表于 2014-11-21 15:05
M8负载是最多15A

How do you get a 15 Ampere current?
I processor regulates only up to 5 Amps, on the display can be set 5-15 amps, but the current does not change.
Does not change the voltage PWM.
Tell me what you did, please.
I saw a scheme where two connected transistor and operational amplifier, but in fact if it is connected, the processor will not allow to do 15 amps.

kirich

M8负载是最多15A

How do you get a 15 Ampere current?
I processor regulates only up to 5 Amps, on the display can be set 5-15 amps, but the current does not change. Does not change the voltage PWM.

Tell me what you did, please.

I saw a scheme where two connected transistor and operational amplifier, but in fact if it is connected, the processor will not allow to do 15 amps.

kirich

How do you get a 15 Ampere current?
I processor regulates only up to 5 Amps, on the display can be set 5-15 amps, but the current does not change. Does not change the voltage PWM.

Tell me what you did, please.

I saw a scheme where two connected transistor and operational amplifier, but in fact if it is connected, the processor will not allow to do 15 amps.

kirich

How do you get a 15 Ampere current?
I processor regulates only up to 5 Amps, on the display can be set 5-15 amps, but the current does not change. Does not change the voltage PWM.

Tell me what you did, please.

I saw a scheme where two connected transistor and operational amplifier, but in fact if it is connected, the processor will not allow to do 15 amps.

cnit

zhqsoft 发表于 2014-11-20 14:48
你看看设定10a实际电流是多少？？。。250mv最大量程，50毫欧就是5a。要大电流就减小取样。25毫欧就是10a量 ...

最大量程时15A的取样电阻是几大？用多大功率的？谢