This is a multi-part message in MIME format. --------------080607000106060406010004 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Hi, everyone I'm currently working on a project where we need to get 12V and 24V from a 18-36V hydrogen fuel cell. I have two of these 12V DC/DC converters, and I want to hook them up as shown in the attached circuit. I'm a little worried that I'm asking for a free lunch with this design, so I'd like some feedback on it. Can I get away with shifting the ground on the second output up to 12V to get 24V with respect to the ground of the first unit and the fuel cell? If, as I suspect, I can't do it with this design, do ya'll have any suggestions on how I can get 12 and 24V from the 18-36V fuel cell output with my two 12V converters? Thanks for your help! - Robert --------------080607000106060406010004 Content-Type: image/gif; name="circuit.GIF" Content-Transfer-Encoding: base64 Content-Disposition: inline; filename="circuit.GIF" R0lGODlhgAIAAvcAAAAAAIAAAACAAICAAAAAgIAAgACAgICAgMDAwP8AAAD/AP//AAAA//8A /wD//////wAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAMwAAZgAAmQAAzAAA/wAzAAAzMwAzZgAz mQAzzAAz/wBmAABmMwBmZgBmmQBmzABm/wCZAACZMwCZZgCZmQCZzACZ/wDMAADMMwDMZgDM mQDMzADM/wD/AAD/MwD/ZgD/mQD/zAD//zMAADMAMzMAZjMAmTMAzDMA/zMzADMzMzMzZjMz mTMzzDMz/zNmADNmMzNmZjNmmTNmzDNm/zOZADOZMzOZZjOZmTOZzDOZ/zPMADPMMzPMZjPM mTPMzDPM/zP/ADP/MzP/ZjP/mTP/zDP//2YAAGYAM2YAZmYAmWYAzGYA/2YzAGYzM2YzZmYz mWYzzGYz/2ZmAGZmM2ZmZmZmmWZmzGZm/2aZAGaZM2aZZmaZmWaZzGaZ/2bMAGbMM2bMZmbM mWbMzGbM/2b/AGb/M2b/Zmb/mWb/zGb//5kAAJkAM5kAZpkAmZkAzJkA/5kzAJkzM5kzZpkz mZkzzJkz/5lmAJlmM5lmZplmmZlmzJlm/5mZAJmZM5mZZpmZmZmZzJmZ/5nMAJnMM5nMZpnM 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