Pafi,
Perpetual Bauelementeagentur
Spitzbergweg 14
A-4800 Attnang Puchheim
Austria
Tel: +43 - 76 74 - 6 25 36
Fax: +43 - 76 74 - 6 25 36 25
E-Mail: pptl@magnet.at
will probably sell you. But beware of the price.
Perpetual Bauelementeagentur
Spitzbergweg 14
A-4800 Attnang Puchheim
Austria
Tel: +43 - 76 74 - 6 25 36
Fax: +43 - 76 74 - 6 25 36 25
E-Mail: pptl@magnet.at
will probably sell you. But beware of the price.
Eva, IRFP460 have Trr(typical) =570nS, but for IRF740A Trr(typical) =240nS, i tried IRF740A, IRF740LC in the 370V 100KHz Dead-Time<500nS H-bridge class D (2X ir2110), however good efficiency was obtained only by SiC using. I bought some ST mosfets (STP12NM50D and others with D suffix, looks like World fastest body diode mosfets), but about 20 smoked/shorted of the IRF740LC cry me -don't do it!
Tip: My devices are from Infineon/Siemens (the first one to make such switching gems available, I think). How is it hiding?
Don't be lazy, I found these and other nice devices after checking one or two hundred datasheets one by one. There doesn't seem to have any other way to do it.
BTW: I don't need APT products either, I think that I can build entire switching power supplies or class D amplifiers costing less than one of their MOSFETs
Don't be lazy, I found these and other nice devices after checking one or two hundred datasheets one by one. There doesn't seem to have any other way to do it.
BTW: I don't need APT products either, I think that I can build entire switching power supplies or class D amplifiers costing less than one of their MOSFETs
Lazy? Thanks! Why do you think I haven't red 377 datasheet of transistors? I have. At least. This is only the number of ones I found worth to save.
I thought about Siemens, (high voltage drop and positive TK is typical) but I didn't find their relevant homepage. I searched in siemens.com, but there is absolutely nothing about semiconductors. Where is their parts list??? Don't they want sell any?
I thought about Siemens, (high voltage drop and positive TK is typical) but I didn't find their relevant homepage. I searched in siemens.com, but there is absolutely nothing about semiconductors. Where is their parts list??? Don't they want sell any?
Check also TrenchStop series. They feature conduction losses as low as for the classic standard speed IGBTs with 2us current tail, but now featuring 40ns current tail!! They seem to be a step ahead of the competitors.
All IR warp series seem a bit outdated because they are not available with integrated diode and Vce(sat) is in the 3V range. Sometimes higher conduction losses counteract any improvement on fall times.
Be aware of very high voltage drop across built-in diodes with some manufacturers, that may also counteract the beneficial effects of faster reverse recovery in some applications.
All IR warp series seem a bit outdated because they are not available with integrated diode and Vce(sat) is in the 3V range. Sometimes higher conduction losses counteract any improvement on fall times.
Be aware of very high voltage drop across built-in diodes with some manufacturers, that may also counteract the beneficial effects of faster reverse recovery in some applications.
mzzj!
I already use fairchild SMPS2 (12N60A4D) for 2 years successfuly, but they can't be paralelled, and the biggest available in TO247 case in Hungary is 20N60, and now I need 30 A. I bought 15 pcs of IRGP50B60PD1, I hope they will work well, but I keep on searching other solutions as well.
Only the infineon IGBTs have the features wich allows paralelling.
Eva!
Really? What about IRGP50B60PD1?
Finally an advice, thanks!
http://www.infineon.com/upload/Document/cmc_upload/documents/012/3916/IKP_W20N60TRev2_2G.pdf
Do you mean this, or there is better (faster)? I like it, except high Tdoff. I will check if it is accessible here or not.
I already use fairchild SMPS2 (12N60A4D) for 2 years successfuly, but they can't be paralelled, and the biggest available in TO247 case in Hungary is 20N60, and now I need 30 A. I bought 15 pcs of IRGP50B60PD1, I hope they will work well, but I keep on searching other solutions as well.
Only the infineon IGBTs have the features wich allows paralelling.
Eva!
Really? What about IRGP50B60PD1?
Finally an advice, thanks!
http://www.infineon.com/upload/Document/cmc_upload/documents/012/3916/IKP_W20N60TRev2_2G.pdf
Do you mean this, or there is better (faster)? I like it, except high Tdoff. I will check if it is accessible here or not.
mzzj was already on the right track about the figures that I posted. For 30A you may consider paralleling 3 SGP10N60 (also available with diode as SKP10N60).
Indeed, performance is not the same for all manufacturers
Also, those TrenchStop ones may be very useful to get ultimate efficiency for slow switching at or below 50Khz (ie: multi-kilowatt bass amplifiers, not to mention that a small current tail reduces dI/dt and EMI considerably).
Concerning turn-off delay, that time is mostly expent discharging the gate before Vce starts to rise, it's not crossover time.
IRGP50B60PD1 seems quite useful (unlike others from IR). However, driving a 3.3nF gate through 3.3 ohms seems harder than driving three 550pf gates through 22 ohms each.
Indeed, performance is not the same for all manufacturers
Also, those TrenchStop ones may be very useful to get ultimate efficiency for slow switching at or below 50Khz (ie: multi-kilowatt bass amplifiers, not to mention that a small current tail reduces dI/dt and EMI considerably).
Concerning turn-off delay, that time is mostly expent discharging the gate before Vce starts to rise, it's not crossover time.
IRGP50B60PD1 seems quite useful (unlike others from IR). However, driving a 3.3nF gate through 3.3 ohms seems harder than driving three 550pf gates through 22 ohms each.
irf got not the right fet for you?
hey, build your own mosfet !!!
ok, virtual ... but nice...my score, first try: 68
here:
http://www.appliedmaterials.com/products/assets/transistor_challenge/index.html
hey, build your own mosfet !!!
ok, virtual ... but nice...my score, first try: 68
here:
http://www.appliedmaterials.com/products/assets/transistor_challenge/index.html
Hi Sunknu
Somehow I dont think your high driver voltage supply is working.
Have you measured the voltage between pin 6 and ground to make sure you get 180 + 15 V (Use a scope)
Are you really starting out with 180V?????
I have just tried using the IR2110 a couple of days ago, se schematic. It worked on the first try
I'm running on a single 12V supply for this first run, just to get a feel for the circuit.
If you are using 180V you'll really need some dead time control!
Somehow I dont think your high driver voltage supply is working.
Have you measured the voltage between pin 6 and ground to make sure you get 180 + 15 V (Use a scope)
Are you really starting out with 180V?????
I have just tried using the IR2110 a couple of days ago, se schematic. It worked on the first try
I'm running on a single 12V supply for this first run, just to get a feel for the circuit.
If you are using 180V you'll really need some dead time control!
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