Jun 15, 2016 #1 N nvt088 Member level 4 Joined Dec 24, 2013 Messages 79 Helped 10 Reputation 20 Reaction score 10 Trophy points 8 Location Jupiter Activity points 509 Hi. I want to select a capacitor for a full-bridge rectifier. Load current: Max 20A. Load voltage: Max 400V. Line frequency: 85 kHz. Application: Electric vehicle battery charging. How can I calculate the capacitance value? Many thanks.
Hi. I want to select a capacitor for a full-bridge rectifier. Load current: Max 20A. Load voltage: Max 400V. Line frequency: 85 kHz. Application: Electric vehicle battery charging. How can I calculate the capacitance value? Many thanks.
Jun 15, 2016 #2 barry Advanced Member level 7 Joined Mar 31, 2005 Messages 6,338 Helped 1,194 Reputation 2,400 Reaction score 1,389 Trophy points 1,393 Location California, USA Activity points 34,518 You also need to specify ripple. The basic formula is: C = 0.7 *I /(Vripple*F)