Hi KJ,
I have searched our database of designs, and could not find an exact match to your requirements. The closest example is PMP30092:
best regards,
Brian
Hi Mikha,
It is helpful to look at the VDD waveform, a switching waveform (e.g. gate drive or VDS, or secondary winding voltage) and the output voltage at the same time.
This will point to what is causing the shutdown.
If VDD is dropping to the…
Hi Rushi,
The first thing to consider in a buck application, is your input minimum input voltage. It must be higher than your 100V output. Keep in mind that if you have an AC input, the input voltage will sag during the zero crossings of the AC waveform…
Hi Tom,
Here is a simple latch circuit that you can use. In your case, you will need to use a current limit comparator trip the latch rather than the SS cap.
regards,
Brian
Hi Nandakumar,
I do not have the core and winding information for the transformer, but here are the electrical specs:
-
- Switching frequency ~75kHz
- 14:1:3 ratio (primary:secondary:bias)
- 900uH primary inductance
- Primary current ~ 500mA…
Hi Diego,
By removing the feedback circuit and using a divider from Vref to FB, you are running open-loop (un-regulated). You need to keep the feedback path from the output to maintain regulation.
thanks,
Brian
Hi Bartosz,
This is a custom transformer. Pulse does support it, but you need to contact them directly to procure it. Here is a link to Pulse representatives in Poland:
www.pulseelectronics.com/.../europe
If you don't have any luck there, send…
Hi Norman,
Here are the Altium files for this design:
/cfs-file/__key/communityserver-discussions-components-files/234/0410.PMP3162-_2800_2_2D00_6_2D00_2018-12_2D00_01_2D00_31-PM_2900_.zip
thanks,
Brian
