bridge rectifier from mosfets makes problems in drivers.

[deepakchikane]

can anyone help out me with the biasing of drivers with ground..

i hv been cnfused from source & ground points in full bridge

here m attaching the developments circuits which makes problems after 30 volts ac..

plz check attachemnts & suggest idea if u have

plz plz plz:sad::sad::sad::sad:

 

[FvM]

"Floating" drivers are required for high side switches, e.g. industry standard bootstrap drivers, alternatively isolated drivers with separate supply or transformer based circuits.

It's a series topic at Edaboard.

 

[dick_freebird]

LTC has a new MOSFET-quad driver out, meant for
offline (low frequency) applications. Meant to solve
exactly the topic problem.

 

[deepakchikane]

Hello dick_freebird

can u give me datasheet description..