last highlighted date: 2023-10-19
Highlights
- Two main considerations determine how much capacitance you will need: the required holdup time and the allowable ripple voltage.
- Tags: pfc
- Note: bulk cap selection to PFC
- Both low- and high-frequency ripple currents are not functions of the amount of capacitance. Low-frequency current is a function of the output power; it is not a function of line voltage. High-frequency ripple is greatest at low line and is a function of line, boost inductance and output power.
- Note: low freq and high freq ripple currents of the output bulk is depending on: