Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
The high side drivers and their gate drivers (entire top half of the bridge) won't work.user1453 said:Whils tinkering with the simulation I found that the reference voltage for the comparators was too high
setting it to 5v solved the problem but now LTspice crashes when I run the simulation
have I constructed the gate drivers wrong?
You can post it here. Just "Go Advanced" and then click on "Manage Attachments".user1453 said:know a good site for hosting zip files?
You posted the (.RAW) waveform file. As I said, you need to post the .ASC file.user1453 said:The reason the op amps and comparators on the left exist is to stop shoot through
The components generate non overlaping two square waves with variable duty time 0-50% roughly
The final frquency of the pwm signal will be about 20khz I slowed it don abit to make the simulations quicker
What I was trying to do with the gate drive was +12v on -12v for off
heres the file I've removed two of the voltage sources and raised the voltage of the remaining one to 230v that is what the voltage will eventually be set to
That's it.user1453 said:thos the one?
Ron H said:...
I agree with you about cleaning up the schematic. At the very least, he could replace the oscillator and the inverting amp with voltage sources, at least in the beginning, thereby saving complexity and simulation time.