k7elp60
Active Member
I have lost my thoughts and my notes on the value of resistors to ensure saturation of a transistor. Please correct me where I am wrong. For the 2N3904 if I want the saturation collector current to be 10mA. and the normal β is 100, for a collector current of 10mA. A β of 10 is used, resulting in a base current of 1mA.
I realize that R2 is not necessary for saturation, but for stability etc it is used. So how do I figure the values of R1 and R2 of the attached schematic for a saturation current of 10mA?
I realize that R2 is not necessary for saturation, but for stability etc it is used. So how do I figure the values of R1 and R2 of the attached schematic for a saturation current of 10mA?