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Power Electronics Design
book

Power Electronics Design

by Keith H. Sueker
April 2011
Intermediate to advanced content levelIntermediate to advanced
272 pages
6h 11m
English
Newnes
Content preview from Power Electronics Design
10.8. Power to the Gates 145
10.8. Power to the Gates
Many arrangements have been used to provide the required gate drive
power. Low-voltage circuits can use a pulse transformer driven by a
fast-rising voltage with a lower voltage sustaining signal to provide
direct gate drive. The pulse transformer design must be a compromise
between pulse rise time and the sustaining current level. Alternatively,
the pulse transformer can be driven by a high-frequency pulse train,
each cycle of which has a high-level, fast-rising initial current. The
duty cycle on the pulse train should not be less than 50% for most
applications. It is difficult to provide the required rise time and sustain
current when sufficient insulation is used to operate a high-voltage
pulse transformer ...
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Publisher Resources

ISBN: 9780750679275