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Actally some company made this inverter and i have bought some pieces form them.
Problem is of MOSFET Damaging is there.I don't have proper details to give you but i want to solve this problem.
A snubber circuit is required as you guys suggested. But without having much knowledge how i calculate...
At the output side the voltage is 220Vac & current is 4A.
The primary side of the transformer side is switching using MOSFET (HRF3205).
Should i use larger value of Capacitor maybe 1uF?
What information you required?
Actually this is the complete circuit diagram of transformer's secondary section.
If i have to add a snubber circuit, should i place snubber circuit with each MOSFET?
Actually its an inverter.Some company has made it.I am troubleshooting it because whenever i change the MOSFET's, they get damaged after somedays.I don't know the reason.
That's why i am reverse engineering the PCB to understand the issue.
Thanks betwixt
But normally we have snubber connected across drain and source, right? How they are working in the attached image? Are they enough for these 4 mosfet's?
Actually the transformer primary has 3 terminals, One terminal is connected to the +ve side of battery,the other two terminals...
Hi
I am troubleshooting a pcb. One section i have drawn on pcb software as follows
i wanna ask, Are red circle sections acting as snubber circuit or not?
if yes how they are working?
Thanks everyone.
I am still confused. What should i do? always multiply the base current with 5 or 10 for the safe side to saturate the transistor? or do something else to ensure the correct operation. What should be the Vce for operation in saturation region?
What 1st graph shows?
i am...
hi
its a basic question, but i want to know if i am doing write calculations or not
i want to drive a relay using bc547 transistor, relay has a coil resistance of 320 ohms, driving voltage is 12v. so the current required is 37.5mA.
after calculating all the others parameters i get the value of...
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