hiii i want to build pfc 1kw using ucc28019. but i am not getting 390 v in output. presently i got 344v . Vcc=12v
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hiii i want to build pfc 1kw using ucc28019. but i am not getting 390 v in output. presently i got 344v . Vcc=12v
1307.Bullzip PDF Printer.pdfInput voltage is 230Vac 50Hz.
presently i have resistor load with 1460 ohms .
Isense 0.4V
Vins 4.4V
Hi, Dipenkumar,
With Vout=320V, R=1460ohm, your load is only 70W. At 230Vin, the peak input current is about 0.43A. The current shunt in your schematic is about 0.02ohm, so the ISENSE is about -0.43*0.02=-0.009V. How can you get -0.44V? Please check you have used correct shunt resistor.
Regards,
Bosheng
Dear Bosheng,
after this error i was decided to make pcb and then i will do further process. So pcb is under process may in this week i will get.
Best Regards,
Dipenkumar