+2 votes
102 views

Hii, i am building BLDC [Brushless DC electric motor] controller for my BLDC motor. I am using arduino, IR2110 gate driver ic and H-bridge of IRFZ44N. But problem is i don't know the value of bootstrap capacitor should be used in circuit for 48 V operation. 

Please help

asked Jun 3 in Electrical by Swap_N
edited Jun 3 by ppk | 102 views
To size the bootstrap capacitor, the first step is to establish
the minimum voltage drop (ΔVBS) that we have to guarantee
when the high side IGBT is on. If VGEmin is the minimum gate
emitter voltage to maintain, the voltage drop must be:
ΔVBS ≤ VCC −VF −VGEmin −VCEon

Your answer

Upload an image:

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
To avoid this verification in future, please log in or register.