Hello all.
Circuit drawing / calculations attached.
I'm in the process of bettering myself for my schoolwork, and has therefore started doing some circuit solving assignment outside class.
I've meet an assignment which has me calculating a resistor size R3 to give a specific wattage over an IRF530 mosfet transistor.
My conclusion is that the Vref is similar to the voltage drop (not sure this is the correct term, as i'm not primary english speaking) over R2 due to the feedback from the amplifier, and as the wanted power in the IRF530 is 10W the desired voltage for Vref/VR2 should be 1V as there then will be a current of 10A due to R2 being 0.1 ohm  and from that i use the voltage division formula to calculate R3.
My question is: is my calculation/understanding of this correct?
Circuit drawing / calculations attached.
I'm in the process of bettering myself for my schoolwork, and has therefore started doing some circuit solving assignment outside class.
I've meet an assignment which has me calculating a resistor size R3 to give a specific wattage over an IRF530 mosfet transistor.
My conclusion is that the Vref is similar to the voltage drop (not sure this is the correct term, as i'm not primary english speaking) over R2 due to the feedback from the amplifier, and as the wanted power in the IRF530 is 10W the desired voltage for Vref/VR2 should be 1V as there then will be a current of 10A due to R2 being 0.1 ohm  and from that i use the voltage division formula to calculate R3.
My question is: is my calculation/understanding of this correct?
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