Remove offset voltage from square wave

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ata90

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Hi buddy

Assume we have a square wave with specification bellow:
frequency: 400Hz
duty cycle: 50%
Positive peak voltage: +24V
Negative peak voltage: -20V

I want to remove DC offset voltage and supply 50 ohm load. I'm not sure if I can remove offset voltage with capacitors; because in negative cycle of square wave, the polarity of capacitor is reversed. and maybe damaged.
So, how can I remove DC offset voltage and have square wave with symmetric positive and negative peak?
 

The capacitor value will be chosen for sufficient low AC voltage drop. Then the voltage across the capacitor will be almost constant DC (of 2V) and not reverse.
 


That means you shdnt use a electrolytic capacitor, you can use other types, with matching your load value..
 

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