Google Groups no longer supports new Usenet posts or subscriptions. Historical content remains viewable.
Dismiss
UC3825 help with Pspice
125 views
Skip to first unread message
Waldes
Mar 18, 2009, 7:19:57 AM3/18/09
to
Hi all!
I need simulation file for this IC. If someone has it, please share
with me. I found here some files for UC3843, UC3842, but they are
current mode, and I want something with voltage mode for flyback
converter, which has voltage regulated from 30V to 300V. So I will be
gratefull for model UC3825 or information how to simulate in Pspice
PWM modulator with Soft Start and limit max current.
PS. Perhaps you know another driver, which I can use in my project
(flyback converter, Uo=30V-300V, Io=0.1A-0.2A, Poutmax=30W) and it's
easy for simulating in Pspice? Thanks for all answers!
I need simulation file for this IC. If someone has it, please share
with me. I found here some files for UC3843, UC3842, but they are
current mode, and I want something with voltage mode for flyback
converter, which has voltage regulated from 30V to 300V. So I will be
gratefull for model UC3825 or information how to simulate in Pspice
PWM modulator with Soft Start and limit max current.
PS. Perhaps you know another driver, which I can use in my project
(flyback converter, Uo=30V-300V, Io=0.1A-0.2A, Poutmax=30W) and it's
easy for simulating in Pspice? Thanks for all answers!
Klaus Kragelund
Mar 19, 2009, 5:21:15 AM3/19/09
to
You can convert the model you have now from current mode to voltage
mode by applying you own ramp voltage to the current sensing pin.
Regards
Klaus
0 new messages