Image forming apparatus
US-2024345519-A1 · Oct 17, 2024 · US
Power supply apparatus and image forming apparatus
US8942011B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8942011-B2 |
| Application number | US-201213401535-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 21, 2012 |
| Priority date | Feb 22, 2011 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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Abstract
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A power supply apparatus supplies regulated power to an external apparatus. A power switch is turned on to receive AC power and turned off not to receive the AC power. The AC power is rectified by a rectifying section and is switched by a switching section into switched DC power which is smoothed by a rectifying/smoothing section. Upon reception of an alarm signal, the power disconnecting section stops sending the switched DC power to the rectifying/smoothing section. If the AC switch is turned off and then back on again after stopping sending the switched DC power to the smoothing section, the power disconnecting section allows receiving of the AC power only a time after turn-off of the power switch. Upon reception of an auto-off signal indicative of an idle state of the external apparatus, an auto-off section does not send the switched DC power to the rectifying/smoothing section.
First claim
Opening claim text (preview).
What is claimed is: 1. A power supply apparatus, comprising: a power switch turned on to receive first power and turned off not to receive the first power; a power converting section for converting the first power into second power, the power converting section being in one of a first operation state where the power converting section normally operates in accordance with a drive signal to produce the second power and a second operation state where the power converting section st…
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Classifications
Physics · mapped topic
- G03G15/5004Primary
Physics · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US8942011B2 cover?
- A power supply apparatus supplies regulated power to an external apparatus. A power switch is turned on to receive AC power and turned off not to receive the AC power. The AC power is rectified by a rectifying section and is switched by a switching section into switched DC power which is smoothed by a rectifying/smoothing section. Upon reception of an alarm signal, the power disconnecting secti…
- Who is the assignee on this patent?
- Kato Takahiro, Hatakeyama Motonobu, Umetsu Koji, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification G03G15/5004. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jan 27 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).