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Large currents in the input of a full bridge restifier

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mahsh

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Hello everyone,

I am designing an inverter, and I have a problem in the rectifier stage. I rectify the 220 VAC using a full bridge (and a capacitor), and then I'll use the rectified 300 VDC as the input of my inverter.
The problem is that since my inverter has a relatively large load (5-10 A), I will have very high peak currents in the 220 VAC source side.
In fact as we know, the source current will flow through the bridge only during the time when the input voltage is greater than the capacitor voltage. The diode conducts only 10-20 % of time, so the input current has a peak of 5-10 times the output current, which is way too large.

I am sure there are some simple solutions for this problem, but I can't find any!
I appreciate your suggestions

Thanks
 

seems like you need a slow turn-on circuit
 

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