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inverter output voltage dropped

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vengu84

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Dear All,

I have Square wave inverter the problem in output voltage

output voltage dropped with load condition

Output voltage 265VAC for no load condition
Output voltage 165VAC for 200w load condition


plz help me guys

thanks
by vengu
 

Parasitic resistance is a typical problem. This can be due to a number of things.

Examples:
* switching devices not turning on entirely
* power supply has high internal resistance
 

thanks for u replay

if u have details please send me clearly

thanks
by vengu
 

If your switches get hot, make sure your driver is appropriately designed for that kind of switches.

connect your load directly to your DC-link source. if you measured the voltage drop, certainly your source have to be replaced.

Good Luck with that
 

I presume that u didn't implement feedback network in your inverter..your problem could be resolved using a feedback.
 

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