R9/R13 are connected between pins 9/10 of the 594 and the base/gate pins of the MOSFETS/Transistors.
There were 1K Ohms resistors so I removed them and put them on pins 9/10 and 7 of the 594, then I put 2 100 Ohms resistors in their place for the gates of the MOSFETS.
The images I'm posting is of the scope I have. It also has a built in DMM.
There were 1K Ohms resistors so I removed them and put them on pins 9/10 and 7 of the 594, then I put 2 100 Ohms resistors in their place for the gates of the MOSFETS.
The images I'm posting is of the scope I have. It also has a built in DMM.
Are you referring to the gate resistors? You were supposed to use 100 ohm gate resistors from the start. Clarify.
If you reduce the supply voltage to as low as you can and the crossover remain on, do the FETs heat up?
You could reduce the 1k resistors on 9/10 to 7 if you haven't already but if they're just slightly heating at the lowest voltage possible, they're likely OK. It's up to you what you do.
If the FETs run only slightly warm at the lowest voltage, there should be no heating at all during normal operation when the duty cycle will be reduced.
If heating is a problem, reducing from 1k should reduce heating.
How warm are the 1 ohm source resistors running?
If heating is a problem, reducing from 1k should reduce heating.
How warm are the 1 ohm source resistors running?
It's the coolest I've felt them, when using FETs. The Xover is playing now and the side that the FETs are on is cool, but when the 34Ns was in the circuit it was warm.
So, let's say I do have a heating issue, by how much should I reduce the pulldown resistors? And should I also reduce the gate resistors?
