Bjtpower
Full Member level 5
Dear Friends
I am verifying the One PCB.
PCB Specifications are
Input Voltage:110VAC=155.54V (Max)
Output Power: 100W
Line frequency=50HZ
now they have used the 100uF/450V capacitor of Rubycon.
When i was calculating
Power=voltage x Load current
Load Current=Power/Voltage=100/155.54=0.64A
now, Capacitor Required=I(load)/2xFXRipple=0.64/(2X50X15.55)=0.64/(1555)=0.64/10=411uF
Pls Help me Where i am getting wrong because my cap value is 4 times bigger.
Marx
I am verifying the One PCB.
PCB Specifications are
Input Voltage:110VAC=155.54V (Max)
Output Power: 100W
Line frequency=50HZ
now they have used the 100uF/450V capacitor of Rubycon.
When i was calculating
Power=voltage x Load current
Load Current=Power/Voltage=100/155.54=0.64A
now, Capacitor Required=I(load)/2xFXRipple=0.64/(2X50X15.55)=0.64/(1555)=0.64/10=411uF
Pls Help me Where i am getting wrong because my cap value is 4 times bigger.
Marx