The following triode switch saturation calculator calculates the base resistance of the transistor as it enters saturation or drives the electronic switch.
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Transistors enter saturation or drive electronic switches. So calculating parameters is important. By load current saturation, the base current must be Ib=Ic/Beta. Transistors have different gains, so we need to use the lowest value of the beta to ensure saturation. Rb= (VP-VBE)/Ib= (VP-VBE)*Magnification coefficient/Ic= (VP-VBE)*Magnification coefficient*Rc/VP |
