Other Parts Discussed in Thread: TINA-TI
Tool/software: TINA-TI or Spice Models
Hi all,
I am trying to design a 230V square wave 1 MHz MOSFET amplifier. For this purpose I selected an IRF740 (though I am open to other suggestions that maybe more suitable or would provide even higher frequencies). To drive the IRF740 I selected the UCC5350MCD. The Bus voltage will come from an isolating transformer (1:1) that feeds a bridge rectifier with capacitors to smooth the pulsating DC. To limit the current (P approx. 100W -> I approx 430mA) from the net I thought of using another MOSFET in linear application. For this purpuse I found the IXTP15N50L2 from littlefuse. As there is no spice model from littlefuse I am still using a IRF740 for simulation purposes. The current limiting part of the circuit seems to work, but the UCC5350MCD does not seem to drive the IRF740 in the simulation. Is there something wrong with how I apply the UCC5350MCD?
Pls find the simulation in this attachement:power_amp_mosfet.TSC
Thank you in advance for your help!
Stefan Tauber