Less-Conventional Low-Consumption Galvanic Separated MOSFET-IGBT Gate Drive Supply

Table 1

Parameters of the transformer common mode filter.

Parameters	Value
Magnetization inductance (min)	1 mH
Magnetization inductance (measured)	1.6 mH
Insulation between primary and; secondary coils (rms, during 2 s)	2.4 kV
Primary secondary coupling capacitor	3 pF
Primary turns	43
Secondary turns	43
Rated current AC	0.7 A
Maximum DC resistance (line)	0.6 Ω
Rise temperature	40 K
Weight	3.5 g
Short circuit L-R impedance at 1 KHZ	32 µH  1.017 Ω
Short circuit L-R impedance at 100 kHz	31.16 µH, 0.86 Ω
Foot print	10 × 14 mm
Pin distances size	7 mm × 8 mm
Core cross sections	3.0 mm × 3.0 mm
Apparent permeability	2753
Al	865nH/turn^2
Magnetization losses at 7.5 V peak square	8.23 mW
Short circuit resistor at 100 kHz	0.855 Ω
Cost/unit in larger quantity	0.35 Euro

Parameters from transformer catalogue. Parameters measured from the lab.