Power inverter ndi mtundu wazinthu zomwe zimasintha magetsi a DC kukhala magetsi a AC. Zakhala zikugwiritsidwa ntchito kwambiri pamagalimoto, ma steamboats, mafoni operekera positi ndi matelefoni, chitetezo cha anthu, zadzidzidzi, makina oyendera dzuwa, zida zapakhomo ndi zina.