fsilva.cor
Newbie level 4
Hi,
I'm simulating the following a class D amplifier as shown in the image. The PWM driving scheme is bipolar (25 kHz), the load is 20mH+1.9R, the driving resistors and the dead time (250ns) correspond to those of the gate driver I choose.
The actual transistor I'll be using is the CSD18540Q5B, but as there is no open spice model of it, I'm simulating with the IPB090N06N3 which seems to be similar.
The problem I find is that simulation shows a current spike on the lower transistor each time it turn on. Do you know where might it come from?
Thanks,
Federico
I'm simulating the following a class D amplifier as shown in the image. The PWM driving scheme is bipolar (25 kHz), the load is 20mH+1.9R, the driving resistors and the dead time (250ns) correspond to those of the gate driver I choose.
The actual transistor I'll be using is the CSD18540Q5B, but as there is no open spice model of it, I'm simulating with the IPB090N06N3 which seems to be similar.
The problem I find is that simulation shows a current spike on the lower transistor each time it turn on. Do you know where might it come from?
Thanks,
Federico