A kind of power supply equipment and power supply system
A technology of power supply equipment and power receiving equipment, applied in the field of power supply equipment and power supply system, can solve problems such as equipment burnout
Active Publication Date: 2020-11-06
ZHEJIANG DAHUA TECH CO LTD
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Problems solved by technology
Considering the complexity of use, when the power receiving end is a POC machine, the power supply end normally supplies power to the power receiving end; but the power receiving end is a non-POC machine, or a POC machine with an external adapter, if the power supply end continues to be the power receiving end The device will burn out if the power is supplied
Method used
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[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the specific embodiments described here are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, only some structures related to the present application are shown in the drawings but not all structures. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.
[0027] The terms "first", "second", etc. in this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-e...
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The present application discloses a power supply device and a power supply system. The power supply device includes: a first output terminal, used for coupling an external coaxial cable, and connected to a powered device through the coaxial cable; a first data signal filter circuit, which The first terminal is coupled to the first output terminal for filtering the data signal; the first power signal filter circuit, the first terminal of which is coupled to the first output terminal, is used for filtering the power signal; the power signal input terminal is coupled to the first data signal The second end of the signal filtering circuit; the first switch is arranged on the path between the first output end and the power signal input end; the device detection unit is coupled to the first output end and the first switch, and is used to detect whether the When the data signal is not detected, it is detected whether the power receiving equipment meets the requirements, and if the requirements are met, the first switch is controlled to be turned on, so as to supply power to the power receiving equipment. Through the above, it is possible to selectively supply power to the power receiving device according to the situation of the power receiving device.
Description
technical field [0001] The present application relates to the technical field of power supply, in particular to a power supply device and a power supply system. Background technique [0002] The Power Over Coaxia (POC) solution is a technology that couples power signals and data signals on the same coaxial cable for transmission. Its main purpose is to reduce wiring costs, improve installation convenience and safety, and enable Only one coaxial cable is connected between the front-end equipment and the back-end equipment to work normally. [0003] The POC system is divided into power supply end (back-end equipment) and power receiving end (front-end equipment). Front-end machines can be divided into POC machines and non-POC machines according to different models. Considering the complexity of use, when the power receiving end is a POC machine, the power supply end normally supplies power to the power receiving end; but the power receiving end is a non-POC machine, or a POC...
Claims
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IPC IPC(8): H02J3/00H04B3/54H04B3/56H04L12/10
CPCH02J3/00H04B3/54H04B3/548H04B3/56H04L12/10H04L12/40045H04L12/1453
Inventor 朱海刚李德伍方伟杨银昌
Owner ZHEJIANG DAHUA TECH CO LTD