How to eliminate voltage spikes across switches?

[Radha Sree]

How can I eliminate the voltage spikes across the switches. The switches are connected to the secondary of a multiwinding transformer. Together with the device parasitics they act as an LC circuit. They are giving rise to spikes. How can they can be eliminated or how can their magnitude be reduced??

Thank You

 

[ahmad1954]

we don't see your circuit but one way to remove spike is using capacitor.