current control circuit with arduino

matironik said:
Hello ! I need a current control circuit with arduino

Please provide more information.
 
Hello ! I want to control the stream with MOSFE and MCD,With voltages and variable currents, For example Voltage 5V and current of 3 Amps or 10 Volts Voltage and 20 Amp?With potentiometer I do not want to do just with MOSFET
 
Moved into a new thread as this seems to not pertain to Brett's thread/project.
 
Google 'Arduino Bench Power Supply'. You will find that a device to do what you are asking is going to be rather complex. Depending on your skill level, you may be better off looking for a commercially available solution.

Off the shelf bench power supplies in the order of a few amps can be had at a fairly reasonable price. Higher currents become expensive. I am assuming the higher current is required for battery charging, which also can be achieved with a hobby charger such as an iCharger or one of its clones.
 
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