Title:
配電システムにおける受電装置のための低電力スタンバイ
Document Type and Number:
Japanese Patent JP7223789
Kind Code:
B2
Abstract:
The invention relates to a power distribution system, such as a Power over Ethernet power distribution system. A powered device provides a pulse, such as a Maintain Power Signature, when in standby such that a power providing device remains providing power to it. To increase energy efficiency, the MPS can be cycled (60 ms pulse every 300 ms to 400 ms) according to the IEEE802.3af/at standards. By introducing a controllable switch, for electrically decoupling at least part of the powered device from the power providing device, and a pulse generator, the MPS can be generated in a more energy efficient way and/or can be shortened (e.g. to 5 ms). As an example, the controllable switch can decouple the bulk capacitor of the powered device during MPS generation to prevent the bulk capacitor from filtering out the MPS.
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Inventors:
Iseboot Renato
Went Matthias
Went Matthias
Application Number:
JP2021016415A
Publication Date:
February 16, 2023
Filing Date:
February 04, 2021
Export Citation:
Assignee:
SIGNIFY HOLDING B.V.
International Classes:
H05B45/32; H02J1/00; H05B47/105; H05B47/175
Domestic Patent References:
| JP2017502643A | ||||
| JP2013148943A | ||||
| JP2013510388A | ||||
| JP2009088833A |
Attorney, Agent or Firm:
Sakiko Shibata
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