Dear all,
In order to make an accurate 60Hz voltage inverter I'm trying to bases this on a balanced class D amplifier 500W - 1000W, Based on a self oscilating PWM amplifier with a very low output impedance. The most important is that the feedback is after the filter, (in order to be independant of the load). It's discriped by Hypex aswell, here;
http://www.hypex.nl/technology/ucd.html
I have made a full schematic already, but fiirst now I tried it to simulate with LTSpice. Unfortunatly not very succesfull.
In the simulator schematic I replaced the FET's incl. driver's by a controlled voltage source. The input's are simply sine wave sources, 180 deg phase shifted, and directly connected to the comparator. Mainly I try to get the feedback correctly.
Is there anyone who can give advise? I uploaded the full pdf of the schematic. Also the LTSpice schematic which I do not get to simulate correctly.
The LTSpice file i had to rename otherwise the forum didn't allowed it to upload. Please rename the file rename_asc.pdf to ltspice.asc
In order to make an accurate 60Hz voltage inverter I'm trying to bases this on a balanced class D amplifier 500W - 1000W, Based on a self oscilating PWM amplifier with a very low output impedance. The most important is that the feedback is after the filter, (in order to be independant of the load). It's discriped by Hypex aswell, here;
http://www.hypex.nl/technology/ucd.html
I have made a full schematic already, but fiirst now I tried it to simulate with LTSpice. Unfortunatly not very succesfull.
In the simulator schematic I replaced the FET's incl. driver's by a controlled voltage source. The input's are simply sine wave sources, 180 deg phase shifted, and directly connected to the comparator. Mainly I try to get the feedback correctly.
Is there anyone who can give advise? I uploaded the full pdf of the schematic. Also the LTSpice schematic which I do not get to simulate correctly.
The LTSpice file i had to rename otherwise the forum didn't allowed it to upload. Please rename the file rename_asc.pdf to ltspice.asc