Thanks "sreid" for the review of the LT1160. Could you comment on the Harris Driver HIP4081 as a possible alternative to the LT1160?
I am favoring using the HUF75343 MOSFETs as switches because of their really low on-Resistance of 0.009 Ohm (this would really keep the power dissipation to a...
Sorry for any confusion by my response to VE1BLL's suggestion to consider using audio amps. We actually did work with audio amps in the early days of this project when we were using sine frequencies. But this is history.
The spec is now for square wave TTL input.
The coils are 600mm diameter...
Thanks for the reminder to make sure we keep the RF under control. We are in what is supposed to be a shielded room, but we better make sure to check that it is effective.
Regarding audio amplifiers - we started by looking at audio amps, but they are generally limited at both ends; usually...
It is not necessary to create perfectly uniform magnetic fields over the area. But, yes, I am planning to regulate the current for particular frequencies by selecting appropriate supply voltage. I need to minimise power dissipation within the electronics.
I am designing a MOSFET full-bridge amplifier to "square wave" drive a pair of large diameter, air-core, Helmholtz magnetic coils, for a medical research project. I have been searching International Rectifier and Linear Technology data and I am not confident that I can select drivers and MOSFETS...
