This reference design provides design guide, data and other contents of 500 W server power supply using continuous current mode PFC and LLC DC-DC converter. Using TOLL package MOSFET in the PFC circuit, decreases the overall size and increases the power density.
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Input voltage | AC 90 to 264 V |
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Output voltage | DC 12 V |
Output power | 500 W |
Circuit topology | Continuous Current Mode PFC, LLC (Half-Bridge) + Synchronous Rectification, Oring Circuit for Output |
Design Documents contain the documents below.
Design Data contains the contents listed below.
Part Number | Device Category | Portion Usage | Description |
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Power MOSFET (N-ch 500V<VDSS≤700V) | PFC・1 | N-ch MOSFET, 650 V, 0.09 Ω@10V, TOLL, DTMOSⅥ | |
Power MOSFET (N-ch 500V<VDSS≤700V) | Primary side・2 | N-ch MOSFET, 600 V, 0.175 Ω@10V, TO-220SIS, DTMOSⅣ | |
Power MOSFET (N-ch single 30V<VDSS≤60V) | Secondary side・4 | N-ch MOSFET, 60 V, 0.00128 Ω@10V, SOP Advance, U-MOSⅨ-H | |
Power MOSFET (N-ch single VDSS≤30V) | Oring・3 | N-ch MOSFET, 30 V, 0.00092 Ω@10V, SOP Advance, U-MOSⅨ-H | |
Photocoupler (phototransistor output) | Output voltage feedback・1 | Photocoupler (phototransistor output), DC input, 5000 Vrms, 4pin SO6L |