different design between NI Multisim and experiment circuit push pull

[Naser1363]

Hello,

 

I want design a push pull in NI Multisim. An attached file has been posted.

I use a function generator (50 Ohm output resistor) to generate a 5Vp(10Vp-p) in frequency 500kHz.

The Load is a 100-Ohm resistor.

When I capture signal Vi (input of Function Generator) and Vo (output of Load), the signals are very well and has a 5Vp (10Vp-p) in output.

 But when I use a breadboard to verify this circuit result has a 2.5Vp (5Vp-p) for Vi and Vo.

1- Would you please tell me why NI Multisim and experiment design are different?

2- How can I calculate Input and Output impedance of push-pull in my dosing?

 

Regards

[Tien_P]

Hi.

1. Vin is connected directly to the function generator so make sure you set the generator to 5V.

2. Impedance is Z= V/I, so measure V and I to determine your input and output impedance.

[Tien_P]

e.