In case of power anomalies, such as surges, an UPS may have transient voltage surge-suppression circuitry to prevent equipment damage. ... The rectifier circuit converts AC power to DC which charges the batteries and supplies the inverter.
|Title||:||Emergency and Backup Power Sources|
|Author||:||Michael F. Hordeski|
|Publisher||:||The Fairmont Press, Inc. - 2005|