ROHM APEVK66001 Application EVK
APEVK66001 - Industrial 3.6kW Totem Pole PFC Application EVK
Various applications are equipped with AC/DC functions, and the Totem Pole PFC topology is the standard circuit.The TPPFCSIC-EVK-301 implements a single-phase AC/DC conversion stage in Totem Pole PFC topology. Key components are ROHM Gen.4 SiC MOSFETs (SCT4045DR) as the main high-frequency switching elements, as well as the BM61S41 single-channel isolated gate driver IC. In addition, SJ MOSFETs and auxiliary power supply, among other components from ROHM, were utilized to create a high-performance AC/DC circuit for single-phase operation.TPPFCSIC-EVK-301 reaches up to 98.5％ efficiency at 230Vac.If this Totem Pole PFC reference design is coupled with a secondary stage of comparable efficiency, it becomes possible to achieve the 80+ Titanium target efficiency of power supply products. Moreover, this contributes to enhancing the Annual Performance Factor (APF) of air conditioners.
This reference design consists of two boards.
- TPPFCSIC-EVK-201_PCB3051：Totem Pole PFC Board
- TPPFCSIC-EVK-201_PCB3052: AUX Power Supply Board
| Board Number | TPPFCSIC-EVK-301_PCB3051 | TPPFCSIC-EVK-301_PCB3052 |
|---|---|---|
| Input voltage (freq.) | 85 – 265 VAC (50±3 Hz or 60±3 Hz) | 76 – 450 Vdc |
| Output voltage | 400V (± 5% voltage ripple) | - |
| Output power | 3.6 kW @ 230VAC | - |
| Switching frequency | 100 kHz | - |
| Efficiency (at half load & 230Vac) | 0.985 | - |
| Topology | Totem Pole | - |
| Cooling | Forced air, small fan | - |
| Size | 233mm x 89mm x ca. 40/45 mm(depend on DC link Cap.) | - |
| Output voltage 1 | - | 12V |
| Output voltage 2 | - | 18V |
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