about bldc

[KIRITI]

i am doing project on bldc motor . can any one tell me how to choose
mosfet ratings and driver circuits.

my motor ratings are 380v,14A. i have to use 10khz pwm signals
please tell me how to find ratings

 

[Jamie]

KIRITI wrote:

i am doing project on bldc motor . can any one tell me how to choose
mosfet ratings and driver circuits.

my motor ratings are 380v,14A. i have to use 10khz pwm signals
please tell me how to find ratings
You maybe hard pressed to find Mosfets at that voltage and amp rating.

If you have AC rail voltage, use phase control other wise, you could
look into IGBT's

http://www.powerdesigners.com/InfoWeb/design_center/articles/IGBTs/igbts.shtm



http://webpages.charter.net/jamie_5"