High frequency pulse transformer for an IGBT gate drive

Details High frequency pulse transformer for an IGBT gate drive High frequency pulse transformer for an IGBT gate drive

1995-06-06

1998-04-07

Berhane, Adolf

Inductor devices

With coil capacitance modifying means

336 84C, H01F 1504

Patent

active

057369160

ABSTRACT:
A pulse transformer for use in a high frequency motor controller to isolate the electronic control stages from the power stages in a motor controller. The primary and secondary windings are wound on a common ferrite core and spaced apart from one another. The wire size used for the windings is relatively small (gauge 37 or less). Each of the windings has between 10 and 13 turns. The interwinding capacitance must be below 5 picofarads, preferably below 1 picofarad, and most preferably below 0.2 picofarads.

REFERENCES:
patent: 3771042 (1973-11-01), Faust et al.
patent: 4518941 (1985-05-01), Harada
patent: 4757295 (1988-07-01), Pike

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