Gandalf_Sr
Member level 1
MosFET Driver Problem
Need help in best way to drive MosFETs as shown in the attachment.
The supply varies from +30 to +100V and -30 to -100V. It varies in balance so that the + and - voltages are always the same.
The supplies are around ground and the drive is also reference to ground.
I have a circuit to measure the current and control a PWM drive that drives the MosFETs to regulate the current.
The circuit works but the switch off times are slow and I'm wondering if there's a better way, it seems that opto-coupled MosFET drivers might be a good idea.
Any suggestions are welcomed.
Need help in best way to drive MosFETs as shown in the attachment.
The supply varies from +30 to +100V and -30 to -100V. It varies in balance so that the + and - voltages are always the same.
The supplies are around ground and the drive is also reference to ground.
I have a circuit to measure the current and control a PWM drive that drives the MosFETs to regulate the current.
The circuit works but the switch off times are slow and I'm wondering if there's a better way, it seems that opto-coupled MosFET drivers might be a good idea.
Any suggestions are welcomed.
