Patent classifications
H
H01
H01H
47/00
H01H47/02
H01H47/04
H01H47/043
H01H47/043
Relay control apparatus, battery pack and electric vehicle
A relay control apparatus for a relay including a contact connected between a positive electrode of a battery and a load, and a coil connected between a relay power terminal and a ground in which the contact moves to a closed position when the coil is energized. The relay control apparatus includes a coil control switch which is turned on in response to a first switching signal having a voltage level that is equal to or higher than a first threshold voltage in response to a relay on-command, and a relay holding circuit configured to store emergency power using power supplied from the battery.