Current mirror

118

01:51:51

Iout is independent of power supply.

published 9 years ago

Robert_Kidd

9 years ago

Hmm. Could have problems finding a 433kV supply!

billoute720

9 years ago

😛

Shreekumar

9 years ago

Its a supply independent ckt,you can vary from 0-inf V.but the output current will be same.

Robert_Kidd

9 years ago

It doesn’t look so crazy now you’ve reduced the voltage from433kV to 375V.

Robert_Kidd

9 years ago

What you say is correct but the reason the voltage does not affect the current is that you have inserted a current generator - therefore whatever voltage you select the current generator keeps the current at 200mA. What I would like to know is how you will implement this current generator in a real circuit. I'm not trying to criticise - I just don't see it working in a real-life circuit.

Robert_Kidd

9 years ago

In addition, the ‘Mirror’ isn’t really doing a very good job since 200mA is not the same as 156mA. Note that if you change the current source to 100mA the mirrored current is much closer.

hurz

9 years ago

@robert, keep on thinking loud, you may find out how this suppose to work, even this one is bad configured

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