This paper proposes design method of a mini DC UPS (Uninterruptible Power Supply) for a terminal device using direct connected
DC adapters. This paper describes especially the hardware system of mini DC UPS (micro DC UPS). Most of the existing DC UPS
Systems were developed using a microprocessor to control the input and output voltages. For 12V DC products with FET circuit, the
Output voltage drops by the circuit characteristics. Therefore, to minimize the effects on output voltage, passive components are
used to control the circuit input, output voltages to be stable. In this paper, ripple minimization method is analyzed for when the
power is converted from an external source to an internal source. There are summarized in three version results of study, including
an actual commercial version. I used relay switches, for connection of external/internal power, without SSR.
- 36.pdf (9.4M) 4회 다운로드 | DATE : 2019-12-24 11:34:37