PC Power Supply
The major disadvantages of usual linear power supplies are high power dissipation, the size and the appropriated weight. When looking for an alternative solution and the result of designed is a switch mode power supply (SMPS). The efficiency of such power supplies is around 70 % to 90 % at a power density of 0.2 W / cm³. Because homebrewing was out of the question due to lack of time
   13.8 V / 15 A from a PC Power Supply
Go to 13.8 V / 15 A from a PC Power Supply website
www.qrp4u.de