Research Article

Design Consideration for High Step-Up Nonisolated Multicellular dc-dc Converter for PV Micro Converters

Table 3

Parameters for switching energy calculation.

Circuit parasitic parameters

Total parasitic inductance 22.5 nH
Parasitic capacitances , 10 pF, 30 pF
Common inductance 1 nH
Gate inductance 3 nH
Gate resistance 3 Ω

GaN-HEMT , for free-wheeling diode

On-resistance150 mΩ
Output capacitance110 pF @ 100 V
Breakdown voltage600 V

GaN-FET

On-resistance50 mΩ
Output capacitance110 pF @ 100 V
Breakdown voltage200 V