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Hi every body ,
i m using pi exprest tools to desgin a flyback power supply 24 W 24 V 1A-85 VAC 265 VAC.but when i see the output overload power chart ,i find that the power is more than 24 W.
what should i do to limite the power at 24 W when the input voltage change.
Cordially.
Hi,
thank you verry much for your replay ,i know how to use PI Expert from Power integrations but this version dont supprt topswitch gx it supports only HX and Jx
there are the links of topswitch gx and topswitch hx
https://ac-dc.power.com/products/product-archive/topswitch-gx...
hi every body,
So i find this circuit (flyback power supply 24 V 1 A) which use the ic top255yn from top-switch HX and the transformer MYRRA 74030 so i would to change it with the ic top245yn from top-switch GX,i know for that i need to change R3,R4 and R5 (R6 and R7 i know how to change them)...
ac =1.5 V
dc =1.5 V
here is the schema in complis that I wanted to achieve
however at the beginning I wanted to buy the op amp.
i tested the circuit with out amp op i jsute tested the input but i don't find what i need find
Hello everyone,
I am doing this circuit.
Here is the result I got,
However, in reality I could not get this signal.i don't know why
PS: I got the AC voltage by circuit a voltage divider.
hi apply the feedback to the pin c but always i have a bad result and the regulteur top switch 246 yn do'ont work
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hello thank's,
the problem when i connect the feedback i still measured this signal in the primary
and in the pin c that's what i measured
thanks for your response but i have some questions :
1-how i can Apply a feedback voltage to pin C.
2-actually i use a snubber and it works.
3-So i’m using this circuit. With out a feedback just to testing the top 246 Y.
So when I measured to tension in the auxiliary (4,5) I find 12 V, knowing...
Hi.
i testing this circuit.
So when I find 12 V in the auxiliary (4,5) , knowing that the C pine at what I believe should not exceed 5.8 V, I'm afraid to connect it with this pine.
So what do you think.
Hi ,
So i’m using this circuit. With out a feedback just to testing the top 246 Y.
So when I measured to tension in the auxiliary (4,5) I find 12 V, knowing that the C pine at what I believe should not exceed 5.8 V, I'm afraid to connect it with this pine.
So what do you think.
Thank you, in the editing I canceled the outputs and the loop back, I only wanted to test the IC top 255yn because I read in his manual that the pin c at first time is loaded through the pin D.
However in my case I can not get it anymore knowing that I have already got this value with other...
Hello everyone,
I want to know if there are methods to test top255yn or top246yn integration power controllers.
I draw your attention that I used this circuit but I could not measure 5.8 V in the pin C.
cordially
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