Two isolated power sources from one

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ALFREDII

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Hello, I am looking for a way to create two isolated power sources from one main power source. The main power source will be around 9v and the two power sources that are created from it should look like two seperate 9v batteries. Neither the positive nor the ground can be common. Thanks
 

U can use DC to DC converters from Minmax or Mornson.other way is to use common mode choke in between of 9Volt and ground.
 

The main power source will be around 9v dc at about 600mA.
 

then DC-DC converters is the only solution,,... you can design two separate supplies having two separate paths with each having component values required for the output you need(9V)....
 

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