alternator; AC generator; AC power source
Technical term for a device that generates alternating current, or an AC power supply. The cross-reference to オルタネーター suggests the automotive alternator sense is common.
See also: オルタネーター
The car's alternator broke down, and the battery stopped charging.
In this experiment, we use an AC power source to run the motor.
Often used specifically for automotive alternators, while 交流電源 is a broader term for any AC power source or generator.
DC power source, the counterpart to 交流電源.
Compound of 交流 (alternating current) and 電源 (power source).