Title:
A small capacity power supply, an electric power system, and an image forming device
Document Type and Number:
Japanese Patent JP6172564
Kind Code:
B2
Abstract:
A system for minimizing damage based on excess current or voltage is described in which a connection between an AC power supply and a smoothing circuit is interrupted. The system may include capacitors and relays located between the AC power supply and a rectifier. By determining that a voltage or current is greater than a threshold level, the relay or relays may be opened. For instance, the increased voltage or current may be due to a failure of one or the capacitors, resulting in a short circuit across the capacitor. By opening the relay or relays, damage due to the excess current or voltage may be prevented from damaging downstream components.
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Inventors:
Shunsuke Gomi
Application Number:
JP2013112265A
Publication Date:
August 02, 2017
Filing Date:
May 28, 2013
Export Citation:
Assignee:
Brother Industries, Ltd.
International Classes:
H02M7/06; G03G21/00; H02M3/28; H02M1/00
Domestic Patent References:
| JP2013031337A | ||||
| JP2000014155A | ||||
| JP2001320875A | ||||
| JP2004266984A | ||||
| JP2000166221A | ||||
| JP2012105378A | ||||
| JP10070880A | ||||
| JP2001169552A | ||||
| JP2000502868A | ||||
| JP8330164A | ||||
| JP1105378U |
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