Power supply, image forming device, and power supply method

• Main Authors: NAKAMURA AKINOBU, TSUCHIYA FUMINORI, MIYAZAKI SUSUMU, ASO YUTAKA, MIYADERA TATSUYA, KAWANABE MOTOHIRO, YOSHIKAWA KEITA
• Format: Patent
• Language: English
• Published: 17.03.2015
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CINEMATOGRAPHY; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; ELECTROGRAPHY; ELECTROPHOTOGRAPHY; GENERATION; HOLOGRAPHY; MAGNETOGRAPHY; PHOTOGRAPHY; PHYSICS

Disclosed is a power supply including a first voltage generating unit that generates a first voltage from an external power supply; a second voltage generating unit that generates a first predetermined voltage and supplies the generated first predetermined voltage to the load; a third voltage generating unit that generates the first predetermined voltage and supplies the generated first predetermined voltage to the load; and a controller that causes the first voltage to be greater than or equal to a second voltage during a first mode, and causes the first voltage to be less than the second voltage during a second mode. During the first mode, the power is supplied from the second voltage generating unit and the third voltage generating unit to the load, and during the second mode, the power is supplied from the third voltage generating unit to the load.