| 摘要 |
Disclosed are a power supply apparatus and a power supply method. The power supply apparatus according to the embodiment of the present invention includes: a first power generator which supplies a first voltage of a first range to a load, a second power generator which operates in a no-load state when the first power generator supplies the first voltage, and generates a second voltage of a second range within the first range when the first power generator supplies the voltage out of the first range; and a circuit breaker for the second power generator which supplies the second voltage to the load by electrically connecting the second power generator to the load when the first power generator supplies the voltage out of the first range. [Reference numerals] (AA) Second range; (BB) First range; (CC) V or Hz |
