Good day,
I am trying to figure out how to correctly and accurately calculate the resistor value of a transistor base.
Attached is a simple diagram. What would be the correct formula for calculating R1. Here is the formula I have and calculation using the 2N2222A:
RB = (VCCVBE)/(IC/B) = (3.3V1.2V)/(50mA/35) = 2.1V/ 1,42857mA = 2.1V/0.00142857A = 1 470 Ohms
Is my calculation correct? Is my formula correct?
I am trying to figure out how to correctly and accurately calculate the resistor value of a transistor base.
Attached is a simple diagram. What would be the correct formula for calculating R1. Here is the formula I have and calculation using the 2N2222A:
RB = (VCCVBE)/(IC/B) = (3.3V1.2V)/(50mA/35) = 2.1V/ 1,42857mA = 2.1V/0.00142857A = 1 470 Ohms
Is my calculation correct? Is my formula correct?
Attachments

7.8 KB Views: 26