I am designing a 20 watt smps , but my design is not provide full current. At 230 volt ac design provide on 1.98Amp with 5.1 Volt output.
But is design the smps for 5 Volt 4 Amp.
can you please tell where is the problem.
transformer Design using PI expert Online tool.
Detail attached of PI EXPERT.
Iam using TNY290P ic , and these design is replicate of 20Watt tv stand BY design.
MY 20W Design 5Volt output using TNY290P, is not provide full output current.