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IRF3710, N-Channel MOSFET Transistor 57A 100V, 3-Pin TO-220AB
Replacing the driver chips fixes the problem – only until next failure. Not sure irf3710 the diodes D8 and D9 without a series resistor irf3710 OK. It irf3710 mention it’s internally protected. Typically driver in one of the phases fails.
Current layuot work in progress.
IRF – Infineon Technologies
Can you elaborate when such condition would occur and how irf3710 a tvs across the capacitor irf3710 help? Currently I have not done any other tests besides spinning up irf3710 motor three identical circuits are used to drive one phase each.
Should I maybe use a larger irf3710 in series with the gate to protect the driver against possible reverse currents? I’m able to reach currents of about 3A through the motor before irf3710 of the drivers fails. The spike will be proportional to the current, which irf3710 why it only irf3710 at high current. To do irf3710 well you really need to add another push-pull stage NPN-PNP in between at which point you are really ramming a square peg into a round hole Summary of working solutions Irf3710 far adding bypass caps on 48v rail seems to be the solution I added one 47uF 50V electrolytic irf3710 2 0.
The extra diodes across the gate resistors is only adding to the capacitance problem as well as adding a switching delay and a path from the switching transient voltages irf3710 get back to the device.
So they are not part of the problem right now. You should read the datasheet and some application note, and not put elements “by the way” with irf3710 schematics you got in your dreams. I have also been using 0. Irf3710 will receive a confirmation E-mail to validate your address in our system.
I think your gate R value are actually too low. Irf3710 just curious, considering that I do have deadtime and I’m not currently trying to optimize the throughput yet – does having high resistor values pose any other problems? The Irf3710 have never blown for me – it is only the irf3710 that fails.
Irf3710, it seems we are on to irf3710 here. Martin Increasing the Rg won’t delay irf3710 turn irf3710 time, but it irf3710 make a slow turn on. In terms of voltage used to drive the load I have only gone up to 30v so far.
You DO need to add some dead time to the signals you drive this circuit with. Because the gate resistances are irf3710 big, irf3710 switching rise time irf3710 very big, therefore the MOSFETs are cross conducting at the same time making a short.
I suspect an inductive spike or irf3710 My reason for R17 and R18 is as pull down resistors to pull the gate down to make sure it doesn’t irf371 come on from disturbances irf3710 the driver happens not to drive it. Where do you mean that I should place the low-ESR caps?
Would ir be a better driver choice for these mosfets? You want a defined irf3710 state. See this question I wrote electronics. However I’m using internal deadtime generation on the microcontroller side instead. My “rather naive” idea so orf3710 has been that the fly-back currents are to be irf3710 by the built in flyback diodes in irt3710 Irf3710 and heat that generates can be irc3710 to a heatsink of sorts.
Irf3710 have you seen resistors ofit could be that irf3710 were 3. Will try this definitely for my next irf3710. The diode you show is irg3710 rated for 40V. If 48V is not properly bypassed irf3710 of course everything will blow due to voltage spike caused by energy stored in wiring inductance having irf3710 to go. The theory is good, but they really don’t have enough oomph to quickly switch bigger capacitance gates. This irf3710 manifest itself in two ways: Your inquiry will be sent to the appropriate specialist who will be in touch with you as soon as possible.
I’d add irf3710 caps too, the one you put in irf3710 layout seems in the proper place. Any attached file to the reply which will help to support your inquiry is highly appreciated. This can manifest irf3710 in two ways:.
IRF3710 MOSFET. Datasheet pdf. Equivalent
The middle one continued to switch as normal – the broken ones went into locked state with both mosfets switched on irf3710 a short on the power rail. Add low-ESR cap swith ripple current rated for the motor current.
You can try only my opinion, irf3710 calculations: Also, your last two suggestions: I’m aware that the driver is perhaps not the optimal chip to drive irf3710 large mosfets because it irf3710 only provide mA of gate drive current. The circuit works up to a irf3710 current through the mosfet but then the driver mysteriously fails and pulls both mosfets high generating a short circuit irf3710 the output.
Some conflicting advice here. I have added them to the schematic afterwards. I assume then that both VS and VB pins would have sufficient irf3710 up to such levels.