Re: xbox 360 blowing mosfet
There are several phases as it lowers the frequency required for switching elements and spreads heat dissipated across them. Some VRMs have up to 10 phases! High end expensive ones. The higher the frequency the lower the output ripple. So many phases is something desirable to get that frequency high. The controller monitors many things. Current, Voltage, switching, etc. I ignore some of the details. But basically it does that, take high voltage and lower it in the most efficient possible way keeping it constant no matter power consumed by CPU.
The other circuit I am dealing with does the same. I removed some of the regulators and chips in their output path and nothing changed. Someone suggest me in another forum to change the controller chip same as stj. Let's see how I can get one of those new chips. I have no oscilloscope to see what it is spitting so that is my best choice I think.
Originally posted by keeney123
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The other circuit I am dealing with does the same. I removed some of the regulators and chips in their output path and nothing changed. Someone suggest me in another forum to change the controller chip same as stj. Let's see how I can get one of those new chips. I have no oscilloscope to see what it is spitting so that is my best choice I think.
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