Hi, I am trying to make one of my project plug into the wall. It needs 150 Watts, at 12 volts. I am going to use laptop chargers to power it, but I only have 2, 75 Watt chargers. Both of the chargers are 12 volt chargers, and I was wondering, could I use these two chargers in parallel to achieve my 150 watts? I do not have money to buy another laptop charger, and was wondering, if i could have them in parallel, how would I go about doing that?