DC Converters with output voltage greater than 72 Volts

Discussion in 'General Electronics Chat' started by Tom Vic, Jul 18, 2014.

  1. Tom Vic

    Thread Starter New Member

    Jul 18, 2014
    Dear Friends,
    Please give your valuable comments and suggestions for developing a dc-dc converter for an output voltage equal to or greater than 72Volts.
    Hybrid electric vehicles need 48/42 Volts DC supply
    Telecom power supplies need 48 Volts DC supply
    So all the applications need a voltage of either 48 Volts of lesser,
    because of the trouble of using an isolation transformer for a voltage greater than 48V dc, so can we develop a DC-DC non-isolated converter with an output voltage of 72 Volts (150 Watts Power) with either a 36/24 Volts (@ 100 Watts power rating) DC battery.
    Please do give your valuable suggestions.
    This topic i felt interesting................Dear Friends i welcome you all for commenting on it.
    Thank you
  2. bertus


    Apr 5, 2008
  3. ronv

    AAC Fanatic!

    Nov 12, 2008
    Usually the front end of these supplies are not isolated, just rectified and filtered. This voltage is then switched at high frequency into a transformer to step the voltage down. The high frequency makes the transformer and filter caps smaller than working with line frequency. This provides isolation for safety.