simulation of switch circuit

[sogh1668]

hi

I need some simulation circuit like this png file model to comparing switching speed of variuse model

thanks

[mirko82]

Hi sogh1668, I’d like to have more info. the Vdc of the DC-DC boost converter, I guess is the output of a photovoltaic panel. what is this voltage to step up?  And the output Voltage? (battery voltage)

[mirko82]

This is a 480Watt power boost converter PSpice example. I set a 18V input from the photovoltaic panel and a 48V output.It provides about 10A on a 5 Ohm load. The frequency is 20khz, and the Duty cycle is 0.7 as you can see from the pulse image attached.With this data, the minimum Inductance to use is a 7.5 uH to ensure a continuos condition mode. In the other image you can see the discontinuous mode of the inductor current using a 4uH inductance.For the choice of IGBT pay attentiont to the Ic-Vce characteristic varying the Vge value, and the maximum current that it can provide.In this example an MG75 would be more correct but I don’t have the spice model.for higher frequencies I’d use a power mosfet.

 

 

Attachments:

You must be logged in to view attached files.

[Author]

Posts