ave purchased a solar backup power device to provide temporary electrical power to critical systems in your data center should the power provided by the electrical utility company go out. the solar panel array captures sunlight, converts it into direct current (dc), and stores it in large batteries. the power supplies on the servers, switches, and routers in your data center require alternating current (ac) to operate. which electrical device should you implement to convert the dc power stored in the batteries into ac power that can be used in the data center?