Recent content by billy fok

thanks for the reply! http://www.rcscomponents.kiev.ua/datasheets/irs21850spbf.pdf

I hope that i have attached the right schematic. I apply 15v to Vcc and 5v pulse to IN. when i measure HO is zero. but i need to have 15V output from my HO. hope you are able to help me

currently am using high side driver and i need to calculate the value of Cboost. may i how i determine the "Bootstrap capacitor leakage current".

am looking for average current for trapezoid. i have attached two pic

may i know what is the formula to calculate current of trapezoid??

hi, thanks for the quick reply.. this is the driver that i use (http://www.rcscomponents.kiev.ua/datasheets/irs21850spbf.pdf) for the filter capacitor value is 100 microF, and the charging pump capacitor 10 microF. i supply 15V to Vcc... hope you are able to help me.

currently I'm using IGBT High Side driver. May i know how to check is the driver working or not working??

hi. my driver that i choose can supply to 20V? and my Vout is from 10v to 20v...

i have trouble to ON IGBT.. to turn on the IGBT, it needed the Driver to turn it on.. pwm pump in 5V into the driver signal. I supply 10v to power up the driver chip. My design requirement to turn on the IGBT Vge is 15v... how to increase the Vge. i have attached the circuit that i using.

may i still know what is the purpose of finding: Pon, Poff, Pon-state, Pswitching and Ptotal??

my power device is refer to SiC IGBT

thanks

may i know what is the purpose of finding power devices losses??

hi.. i do not know the formula for the area under a trapezium... hope you are able to help me..

Can anyone teach me how to find the average current of Trapezium? i have attached the pic