Question #4 (10 pts) (Do not write your answer on this boek.) sheet. Begin your

Question

Question #4 (10 pts) (Do not write your answer on this boek.) sheet. Begin your solution on a new page in your Consider the circuit shown below. won't work, discuss what changes you would make to the circuit to fixthe problem. The Write a short analysis of whether or not it will work as designed. 1f it curve of drain curent versus gate to source voltage, Vos . for the MOSFET is given for your re page. t voltage of the MOSFET is 300 Volts and the maximum drain currem is transistor has a maximum collector voltage of 30 volts and the value of the DC currem hold A. The 2N2222A ) is 50The maximum collector current for the 2N2222A is 100 mA. The microcontroller IO) pin can source up to 500 A @ 5 volts or sink up to 500 iA at O volts. 100 VDC ic Microcontroller 50 K 1 M 75 ohm 2N2222A [MOSFET V1K0

Explanation / Answer

here they used N-channel Enhancement Mosfet in this it will conduct only if gate voltage is applied.

Vds = 300 V

Ids = 5A

In transistor 2N2222A

Vc = 30V

DC gain = 50 = beta

Ic = 100mA

Ic = beta * Ib

Ib = Ic/beta

Ib = 100 / 50 = 2 mA

this is not sufficient it will sink with 500 micro amps at 0 V

change the gain of the transistor with collector current and 1 M ohms we can achive the 500 micro amps at 5 V will be given to the microcontroller I/O pin

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