T
treez
Guest
did you get the transformer right?..power integratrions show how it in one of there DER's
in fact, here is an offline 20v 3a flyback like your own.
**broken link removed**
...It shows the transformer etc
Why dont you make it
Use the "PI Expert software" of theirs to go through the design
Do you want me to send you a doc saying how to check if a flyback 's coils are correctly phased?
Remember the right hand corkscrew rule?...that shows the field direction of your windings....in a flyback, you must be sure the field direction of primary and secondary conduction are the same
Test points.....use twisted pair kynar wire flying wires to solder to the pcb....then solder some approx 0.8mm tinned coper wire to other ends so you can clip scope probe to them. test points could be Vcc, gate, COMP pin....etc etc...a big test point(s) on ground.
in fact, here is an offline 20v 3a flyback like your own.
**broken link removed**
...It shows the transformer etc
Why dont you make it
Use the "PI Expert software" of theirs to go through the design
--- Updated ---
Do you want me to send you a doc saying how to check if a flyback 's coils are correctly phased?
Remember the right hand corkscrew rule?...that shows the field direction of your windings....in a flyback, you must be sure the field direction of primary and secondary conduction are the same
Test points.....use twisted pair kynar wire flying wires to solder to the pcb....then solder some approx 0.8mm tinned coper wire to other ends so you can clip scope probe to them. test points could be Vcc, gate, COMP pin....etc etc...a big test point(s) on ground.
Last edited by a moderator:
