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

Table 3

Voltage drop with 1 transformer compared to 6 transformers.

Capacitors on primary leg	Number of transformers	Voltage drop [mV]
100 µF (electrolytic type) with 10 Ω, local supply load	6	990
	1	917
1 µF × 2 (film type) with local supply open load	6	664
	1	579
1 µF × 2 (film type) with local supply open load	6	59.48
	1	46.44