MegaMods, ComPACs, and Application Notes Combine
to Charge the Batteries of Mining Vehicles and Equipment.
Mining has been going on for more than 40,000 years. Miners employed ingenious methods such as fire to break down hard rock that contained the desired metal. Or they used water delivered to the site by aqueducts to wash the crushed ore and separate the metal. They also used both; fire at first to heat the rock, then water to quench the fire, causing thermal shock that cracked the rock. But mostly they used human labor. For centuries, mining has been done by hard, dangerous physical labor. Today, mining is characterized by heavy machinery: huge trucks, bulldozers, drills, elevators, crushers, and more. Mining is not only much more effective than it has ever been, it’s even safer and more environmentally friendly.
A world-class producer of copper, gold and molybdenum possesses a large fleet of gargantuan-sized vehicles, many of which require battery backup systems. Batteries, of course, occasionally require that they be charged. Battery chargers using ComPACs and MegaMods were developed in-house for use with their vehicle fleet of approximately 50 trucks, bulldozers, and shovels. An important element in this application was the availability of Vicor application notes, especially “Constant Current Control for DC-DC Converters.” The field-proven ComPAC DC-DC switchers were 24 Vin and 24 Vout with output power of 200 W. The MegaMod, Jr. DC-DC converters in rugged, chassis-mount packages were also 24 Vin, 24 Vout, but with output power of 25 W.