Login   |      Register
English    中文


Transistor switch Saturation Online Calculator



App description

The transistor goes into saturation or drives an electronic switch. Therefore calculating parameters is important.

The base current must be Ib = Ic / Beta. Transistors have different gains, so we have to use the lowest value of the beta to ensure saturation.

Rb= (VP-VBE)/Ib= (VP-VBE) * Magnification factor /Ic= (VP-VBE) * Magnification factor * Rc/VP

Usage example

Rc=1KΩ, VP=100V, amplification factor=150, VBE=0.6

Rb= (VP-VBE)/Ib= (VP-VBE) * Magnification factor /Ic= (VP-VBE) * Magnification factor * Rc/VP=149.1

Note

Rc refers to the collector resistance; VP refers to the positive voltage; Beta(min) refers to the amplification factor, current gain; VBE refers to the base-emitter voltage drop; Rb refers to the base resistance

 

    Sign in for comments!

Comment list ( 0 )

 

Evaluation