Power supply system has relaxation circuit which is enabled simultaneously with the outputting of reset signal to relax an output voltage
US9195287B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 16, 2013 |
| Grant date | Nov 24, 2015 |
| Priority date | — |
| Expiry date | Jan 23, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/1566
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This invention is directed to a power supply apparatus and a printing apparatus, which have a function of easily relaxing an output voltage rise caused by an abrupt decrease in load current by a simple arrangement. In an embodiment of the invention, a dummy load is connected to some of power supply circuits included in the power supply apparatus. When an input voltage from a DC power supply falls below a predetermined threshold value, a power supply from the power supply circuit to an integrated circuit to which an electric power is supplied is stopped in synchronism with a reset signal output to the integrated circuit. At this time, an electric power from the power supply circuit is partially supplied to the dummy load, thereby relaxing an abrupt variation of the output voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.