TOPSwitch-II to TOPSwitch-JX migration

Hi,

Thanks for sharing the information. The TOPSwitch JX is the latest products that introduce more features, that is much different than the TopSwitch II. However, you should be able to reuse most of the circuits on your TopSwitch II design.
I would recommend you to use our PI-Expert Software to help your design, it will automatically create a design for you. Then you could do a comparison with the current TopSwitch II design, and make a list of the components change. You can download the PI Expert software in the following link:

http://ac-dc.power.com/design-support/pi-expert-suite/

Hope this is helpful.

Hi Terry,
Thanks for the information and suggestion.
I need to follow "Copy-Exact" concept to make sure that no design parameters change when I upgrade the design to TOPSwitch-JX. But the problem is, since the original design was done by someone else many years ago, I don't have design parameter considerations.
Can you please share the transformer design spreadsheet sheet that was used with TOPSwitch-II so I can figure out design parameters by reverse engineering transformer design? That spreadsheet is no longer available on your website.
Thanks,
- Vaibhav Sapre

Hi,

I am sorry to hear that the PI spread sheet is not available for TOPSwitch II any more. However, the other way that you can do is to make the measurement of the transformer to get all the parameters, like primary inductance, primary turns, secondary turns...ect. Then you could use the TopSwitch JX to see it is possible to match the same design. You may not able to use exactly all the same parameters, but maybe the same core and bobbin.