C2M1000170Dlook more stable to temperature rise than IRFP240. Should make biasing simpler.
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Cree C2M technology is so last year. Check out the next gen C3M. Its only rated at 900volts, but transconductance is 13 and Pd is 125 watts. I can't figure out what advances have been made going from C2M to C3M.
900-V SiC MOSFET | Cree Power converter
900-V SiC MOSFET | Cree Power converter
The 900V Cree SiC fets look like they won't be hitting distributors until October or so. Digi-Key shows Cree 1200V devices, Rohm (cheaper), ST, and Microsemi (both these vendors are pricey).
Mouser may have the Panasonic devices by now - I'll check and see.
Mouser may have the Panasonic devices by now - I'll check and see.
Couldn't imagine Philips/ST or Panasonic devices being cheaper than Cree but if so that would be good news.
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Can someone post a circuit to try the real Cree transistor.... I have 4 of them, did put some to a zen-like circuit but had lots of noise at the output... any help?
Based on the datasheet, the two cree parts mentioned need quite a lot of volts to bias up, so it may not work well as a drop-in replacement for a typical IRF240 circuit - did you you manage to bias up the transistor ?
Which cree part did you try and what was the circuit used ?
Which cree part did you try and what was the circuit used ?
I have the C2M1000170D. the circuit was a typical zen lite with bulbs load. Vdd around 45 volt. I did try to bias with positive or negative vgs.... some how it did bias up... but plenty of noise and if i remember correctly there was also plenty of gain... 🙄
You will need Vgs of somewhere between 7V and 8V.
Is that enough information to get you started?
Do you have a gate resistor?
Is that enough information to get you started?
Do you have a gate resistor?
What value gate resistor?
You might need to increase it to maintain stability. You will probably need a higher value than what Nelson normally uses on IRFP240. As a guess, 3 times as large
You might need to increase it to maintain stability. You will probably need a higher value than what Nelson normally uses on IRFP240. As a guess, 3 times as large