CN102281145A - Power supply processing method and device - Google Patents
Power supply processing method and device Download PDFInfo
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- CN102281145A CN102281145A CN2011102374763A CN201110237476A CN102281145A CN 102281145 A CN102281145 A CN 102281145A CN 2011102374763 A CN2011102374763 A CN 2011102374763A CN 201110237476 A CN201110237476 A CN 201110237476A CN 102281145 A CN102281145 A CN 102281145A
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Abstract
The invention discloses a power supply processing method and device. The power supply processing method comprises a step of detecting candidate power supply ports supplying power at present via a detection module of the power supply processing device, wherein the candidate power supply ports comprise a telecommunication port and an adapter port. The telecommunication port is used for sending the voltage obtained from an external network device to a DC-DC module. The adapter port is used for sending the voltage obtained from an external power supply to the DC-DC module. The DC-DC module is used for converting the received voltage and supplying power by using the converted voltage. The detection module is used for sending detection signals to a control module according to the detected candidate power supply ports for supplying power at present. The control module is used for receiving the detection signals and controlling the connection between the detected candidate power supply ports not supplying power at present, the candidate power supply ports for supplying power at present and the DC-DC module to be disconnected. The power supply processing method and device disclosed by the invention are capable of reducing the transmission harassment of the telecommunication port.
Description
Technical field
The present invention relates to power supply technique, relate in particular to a kind of power supply processing method and equipment.
Background technology
Power over Ethernet (Power over Ethernet, PoE) technology is meant under the situation that existing Ethernet wiring architecture does not make any changes, be some internet protocol-baseds (Internet Protocol, IP) equipment is (as IP phone machine, device of wireless local area network access point (Access Point, AP) or web camera etc.) transmission of data signals the time, also kind equipment provides the technology of direct current supply for this reason.In actual applications, for can be compatible mutually with the equipment of not supporting PoE power supply and application scenarios, the equipment that adopts the PoE technology to power also need be supported the power supply power supply based on adapter, so that guarantee all can normal power supply under any sight.
Fig. 1 is the power supply treatment system figure of support adapter port and telecommunication port power supply in the prior art.As shown in Figure 1, carry out data communication by transformer between the digital circuit of telecommunication port and load, and the centre cap of the transformer of telecommunication port is connected with adapter port.So the power supply treatment system shown in Fig. 1 both can be powered to load by adapter, the netting twine of the network equipment that also can be by power supply capacity will be arranged inserts telecommunication port and powers.
When adopting aforesaid way to power, because the noise that the DC-DC circuit of level is exported behind the noise of output and the feeder ear during adapter port power supply is general bigger, and these two kinds of noises all can be delivered to telecommunication port, make telecommunication port have bigger conduction interference.
Summary of the invention
At above-mentioned defective, the invention provides a kind of power supply processing method and equipment, to reduce the conduction interference of telecommunication port under the situation that is implemented in while support adapter port and telecommunication port power supply.
According to an aspect of the present invention, provide a kind of power supply processing method, comprising:
The detection module of power supply treatment facility detects the current candidate who the powers port of powering, wherein, the described candidate port of powering comprises telecommunication port and adapter port, the voltage that described telecommunication port is used for obtaining from outside network device is sent to the DC-to-DC modular converter of described power supply treatment facility, the voltage that described adapter port is used for obtaining from external power source is sent to described DC-to-DC modular converter, and described DC-to-DC modular converter is used for changing and utilize the voltage after the conversion to power to the voltage that receives;
Described detection module sends detection signal according to the detected current candidate who the powers port of powering to the control module of described power supply treatment facility;
Described control module receives described detection signal, and powers to disconnect between port and the described DC-to-DC modular converter with the described current candidate who powers and be connected according to the current candidate who powers of the described detection signal control port of powering.
According to a further aspect in the invention, also provide a kind of power supply treatment facility, comprising:
Candidate's port of powering, comprise telecommunication port and adapter port, the voltage that described telecommunication port is used for obtaining from outside network device is sent to the DC-to-DC modular converter, and the voltage that described adapter port is used for obtaining from external power source is sent to described DC-to-DC modular converter;
Described DC-to-DC modular converter is used for changing and utilize the voltage after the conversion to power to the voltage that the port of powering from described candidate receives;
Detection module is used to detect the current candidate who the powers port of powering, and sends detection signal according to the detected current candidate who the powers port of powering to control module;
Described control module is used to receive described detection signal, and powers to disconnect between port and the described DC-to-DC modular converter with the described current candidate who powers and be connected according to the current candidate who powers of the described detection signal control port of powering.
According to power supply processing method of the present invention and equipment, owing in the power supply treatment facility, be provided with the detection module that is used to detect current supply power mode, with be used for according to the detected current supply power mode of detection module, with the control module of isolating between idle port and power supply port and the DC-DC circuit, so when telecommunication port is powered, isolate between telecommunication port and the adapter port, make the noise of adapter port can't be delivered to telecommunication port; When adapter port was powered, telecommunication port was isolated simultaneously and between adapter port and the DC-DC circuit, makes the interference of adapter port and DC-DC circuit all can't be delivered to telecommunication port.Therefore, adopt the power supply processing method of the foregoing description,, all can effectively solve the conduction interference problem of telecommunication port no matter by telecommunication port power supply or adapter port power supply.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the power supply treatment system figure of support adapter port and telecommunication port power supply in the prior art.
Fig. 2 is the power schematic flow sheet of processing method of the present invention.
Fig. 3 is used to realize the power system architecture diagram of processing method of the present invention.
Fig. 4 is the power structural representation of treatment facility of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Fig. 2 is the power schematic flow sheet of processing method of the present invention.As shown in Figure 2, this power supply processing method may further comprise the steps:
Step S101, the detection module of power supply treatment facility detects the current candidate who the powers port of powering, wherein, the described candidate port of powering comprises telecommunication port and adapter port, the voltage that described telecommunication port is used for obtaining from outside network device is sent to DC-to-DC conversion (DC-DC) module of described power supply treatment facility, the voltage that described adapter port is used for obtaining from external power source is sent to described DC-DC module, and described DC-DC module is used for changing and utilize the voltage after the conversion to power to the voltage that receives;
Step S102, described detection module sends detection signal according to the detected current candidate who the powers port of powering to the control module of described power supply treatment facility;
Step S103, described control module receives described detection signal, and powers to disconnect between port and the described DC-DC module with the described current candidate who powers and be connected according to the current candidate who powers of the described detection signal control port of powering.
Fig. 3 is used to realize the power system architecture diagram of processing method of the present invention.Below in conjunction with Fig. 3 above-mentioned steps S101～S103 is elaborated.
As shown in Figure 3, this system comprises load to be powered and power supply treatment facility, and this power supply treatment facility is used for obtaining voltage from the outside and offer load after voltage suitably being handled by telecommunication port or adapter port.Particularly, this power supply treatment facility comprises and is used to realize the telecommunication port, adapter port, DC-DC module (being the DC-DC circuit), detection module and the control module that power to the load.And, because telecommunication port is generally used for transmitting data, so this power supply treatment facility also can comprise the data communication module of the data communication between the digital circuit that is used to realize telecommunication port and load, this data communication module for example adopts signal coupling transformer of the prior art to realize.Wherein, for example for being used to connect the network of network interface, adapter port for example is interface conversion and the voltage transitions port that links to each other with power supply to telecommunication port.
More specifically, detection module is connected with adapter port with telecommunication port respectively, when this power supply treatment facility of application begins power supply to load after, detection module detects current supply power mode, know that as if detecting current the power supply by telecommunication port then sends first detection signal to control module, know that current the power supply by adapter port then sends second detection signal to control module if detect.Control module is connected with detection module, and is connected with telecommunication port, adapter port and DC-DC circuit respectively.Control module receives the detection signal that detection module sends, if this detection signal is first detection signal, then controls to disconnect between adapter port and telecommunication port and the DC-DC circuit and is connected; If this detection signal is second detection signal, then controls to disconnect between telecommunication port and adapter port and the DC-DC circuit and be connected.And control module is not controlled the data communication module, so under any supply power mode, can both normally carry out data communication between the digital circuit of telecommunication port and load.
Power supply processing method according to the foregoing description, owing in the power supply treatment facility, be provided with the detection module that is used to detect current supply power mode, with be used for according to the detected current supply power mode of detection module, with the control module of isolating between idle port and power supply port and the DC-DC circuit, so when telecommunication port is powered, isolate between telecommunication port and the adapter port, make the noise of adapter port can't be delivered to telecommunication port; When adapter port was powered, telecommunication port was isolated simultaneously and between adapter port and the DC-DC circuit, makes the interference of adapter port and DC-DC circuit all can't be delivered to telecommunication port.Therefore, adopt the power supply processing method of the foregoing description,, all can effectively solve the conduction interference problem of telecommunication port no matter by telecommunication port power supply or adapter port power supply.
Further, in the power supply processing method of the foregoing description, the detection module of described power supply treatment facility detects the power step of port of the current candidate who powers and comprises:
Described detection module detects between the negative output terminal of anodal and described adapter port of diode whether have voltage, if do not exist, knows that then the current candidate who the powers port of powering is described telecommunication port; If exist, know that then the current candidate who the powers port of powering is described adapter port;
Wherein, described diode is arranged between the crosspoint of the positive output end of described adapter port and described telecommunication port and described DC-to-DC modular converter, and the positive pole of described diode is connected with the positive output end of described adapter port.
Particularly, as shown in Figure 3, detection module comprises the diode between the tie point of the positive output end VP that is arranged on adapter port and telecommunication port and DC-DC circuit, and is used for from sampling between adapter port and the diode to detect voltage detection unit two parts of voltage.More specifically, when being powered by telecommunication port, diode reverse is ended, and the voltage that telecommunication port provides can not be transmitted between adapter port and the diode, so this moment, the voltage detecting result was " 0 "; When being powered by adapter port, there is voltage in the diode forward conducting between the positive output end VP of adapter port and the negative output terminal VN, so this moment, the voltage detecting result was not " 0 ".Therefore, when the voltage detecting result is " 0 ", it is first detection signal of telecommunication port power supply that detection module is used to indicate current supply power mode to the control module transmission, when the voltage detecting result is not " 0 ", detection module sends to control module that to be used to indicate current supply power mode be second detection signal of adapter port power supply.
Power supply processing method according to the foregoing description can make things convenient for, realize effectively that current supply power mode detects.
Further, in the power supply processing method of the foregoing description, described control module receives described detection signal, and powers with the described current candidate who powers according to the current candidate who powers of the described detection signal control port of powering that the disconnection step of connecting comprises between port and the described DC-to-DC modular converter:
To be used to indicate the current candidate who the powers port of powering be first detection signal of described telecommunication port to described control module if receive, and then controls first switch closure and second switch and disconnect;
To be used to indicate the current candidate who the powers port of powering be second detection signal of described adapter port to described control module if receive, and then controls first switch and disconnect and the second switch closure;
Wherein, described first switch is arranged between described telecommunication port and described adapter port and the described DC-to-DC modular converter, and described second switch is arranged between adapter port and described telecommunication port and the described DC-to-DC modular converter.
Particularly, as shown in Figure 3, control module comprises control logic circuit, first K switch 1 and second switch K2.Wherein, first K switch 1 and second switch K2 comprise two gate-controlled switches corresponding to positive output end and negative output terminal respectively, for example are electronic switch.And, first K switch 1 is arranged between the joint of telecommunication port and adapter port and DC-DC circuit, second switch K2 is arranged between the joint of adapter port and telecommunication port and DC-DC circuit, preferably, the gate-controlled switch corresponding to positive output end is arranged between the positive output end of diode and adapter port among the second switch K2.More specifically, when control module receives first detection signal, control first K switch, 1 closure and second switch K2 and disconnect, make adapter port disconnect with DC-DC and be connected with telecommunication port; When control module receives second detection signal, control first K switch 1 and disconnect and second switch K2 closure, make telecommunication port disconnect with DC-DC and be connected with adapter port.
Further, in the power supply processing method of the foregoing description, the detection module of described power supply treatment facility detects the current candidate who powers and powers and also comprise before the step of port:
Described control module is controlled described first switch and described second switch closure.
According to the power supply processing method of the foregoing description, can make at detection module before control module provides detection signal, but telecommunication port and adapter port all are in power supply state, detection module can obtain reliably, effective supply power mode testing result.
Fig. 4 is the power structural representation of treatment facility of the present invention.As shown in Figure 4, this power supply treatment facility comprises:
Candidate's port of powering, comprise telecommunication port 11 and adapter port 12, the voltage that described telecommunication port 11 is used for obtaining from outside network device is sent to DC-DC module 20, and the voltage that described adapter port 12 is used for obtaining from power supply is sent to described DC-DC module 20;
Described DC-DC module 20 is used for changing and utilize the voltage after the conversion to power to the voltage that the port of powering from described candidate receives;
Described control module 40 is used to receive described detection signal, and powers to disconnect between port and the described DC-DC module 20 with the described current candidate who powers and be connected according to the current candidate who powers of the described detection signal control port of powering.
The power supply treatment facility of the foregoing description flow process of handling of powering in the process of powering to the load is identical with the power supply processing method of the foregoing description, so locate to repeat no more.
And, though in the power supply treatment facility of the foregoing description, do not describe, but it should be appreciated by those skilled in the art, because telecommunication port is generally used for transmitting data, the power supply treatment facility of the foregoing description also can comprise the data communication module (Fig. 4 is not shown) of the data communication between the digital circuit that is used for realizing telecommunication port 11 and load.And this data communication module only needs to be connected with load with telecommunication port 11, and the control of its uncontrolled module 40 is so that under any supply power mode, can both normally carry out data communication between the digital circuit of telecommunication port 11 and load.
Power supply treatment facility according to the foregoing description, be provided with the detection module that is used to detect current supply power mode, with be used for according to the detected current supply power mode of detection module, with the control module of isolating between idle port and power supply port and the DC-DC circuit, so when telecommunication port is powered, isolate between telecommunication port and the adapter port, make the noise of adapter port can't be delivered to telecommunication port; When adapter port was powered, telecommunication port was isolated simultaneously and between adapter port and the DC-DC circuit, makes the interference of adapter port and DC-DC circuit all can't be delivered to telecommunication port.Therefore, adopt the power supply processing method of the foregoing description,, all can effectively solve the conduction interference problem of telecommunication port no matter by telecommunication port power supply or adapter port power supply.
Further, in the power supply treatment facility of the foregoing description, described detection module comprises diode and voltage detection unit, wherein, described diode is arranged between the positive output end and described telecommunication port and described DC-to-DC modular converter of described adapter port, and the positive pole of described diode is connected with the positive output end of described adapter port; Described voltage detection unit is used to detect between the negative output terminal of anodal and described adapter port of diode whether have voltage, if do not exist, knows that then the current candidate who the powers port of powering is described telecommunication port; If exist, know that then the current candidate who the powers port of powering is described adapter port.
Power supply treatment facility according to the foregoing description can make things convenient for, realize effectively that current supply power mode detects.
Further, in the power supply treatment facility of the foregoing description, described control module comprises first switch, second switch and control logic circuit, and wherein, described first switch is arranged between described telecommunication port and described adapter port and the described DC-to-DC modular converter; Described second switch is arranged between adapter port and described telecommunication port and the described DC-to-DC modular converter; Described control logic circuit is used for that to be used to indicate the current candidate who the powers port of powering be first detection signal of described telecommunication port if receive, and then controls first switch closure and second switch and disconnects; To be used to indicate the current candidate who the powers port of powering be first detection signal of described adapter port if receive, and then controls first switch and disconnect and the second switch closure.
Further, in the power supply treatment facility of the foregoing description, described control module also is used for described first switch of control and described second switch closure before the port of being powered by the current candidate who powers of detection module detection.
According to the power supply treatment facility of the foregoing description, can make at detection module before control module provides detection signal, but telecommunication port and adapter port all are in power supply state, detection module can obtain reliably, effective supply power mode testing result.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (8)
1. a power supply processing method is characterized in that, comprising:
The detection module of power supply treatment facility detects the current candidate who the powers port of powering, wherein, the described candidate port of powering comprises telecommunication port and adapter port, the voltage that described telecommunication port is used for obtaining from outside network device is sent to the DC-to-DC modular converter of described power supply treatment facility, the voltage that described adapter port is used for obtaining from external power source is sent to described DC-to-DC modular converter, and described DC-to-DC modular converter is used for changing and utilize the voltage after the conversion to power to the voltage that receives;
Described detection module sends detection signal according to the detected current candidate who the powers port of powering to the control module of described power supply treatment facility;
Described control module receives described detection signal, and powers to disconnect between port and the described DC-to-DC modular converter with the described current candidate who powers and be connected according to the current candidate who powers of the described detection signal control port of powering.
2. power supply processing method according to claim 1 is characterized in that, the detection module of described power supply treatment facility detects the power step of port of the current candidate who powers and comprises:
Described detection module detects between the negative output terminal of anodal and described adapter port of diode whether have voltage, if do not exist, knows that then the current candidate who the powers port of powering is described telecommunication port; If exist, know that then the current candidate who the powers port of powering is described adapter port;
Wherein, described diode is arranged between the crosspoint of the positive output end of described adapter port and described telecommunication port and described DC-to-DC modular converter, and the positive pole of described diode is connected with the positive output end of described adapter port.
3. power supply processing method according to claim 1 and 2, it is characterized in that, described control module receives described detection signal, and powers with the described current candidate who powers according to the current candidate who powers of the described detection signal control port of powering that the disconnection step of connecting comprises between port and the described DC-to-DC modular converter:
To be used to indicate the current candidate who the powers port of powering be first detection signal of described telecommunication port to described control module if receive, and then controls first switch closure and second switch and disconnect;
To be used to indicate the current candidate who the powers port of powering be second detection signal of described adapter port to described control module if receive, and then controls first switch and disconnect and the second switch closure;
Wherein, described first switch is arranged between described telecommunication port and described adapter port and the described DC-to-DC modular converter, and described second switch is arranged between adapter port and described telecommunication port and the described DC-to-DC modular converter.
4. power supply processing method according to claim 3 is characterized in that, the detection module of described power supply treatment facility detects the current candidate who powers and powers and also comprise before the step of port:
Described control module is controlled described first switch and described second switch closure.
5. a power supply treatment facility is characterized in that, comprising:
Candidate's port of powering, comprise telecommunication port and adapter port, the voltage that described telecommunication port is used for obtaining from outside network device is sent to the DC-to-DC modular converter, and the voltage that described adapter port is used for obtaining from external power source is sent to described DC-to-DC modular converter;
Described DC-to-DC modular converter is used for changing and utilize the voltage after the conversion to power to the voltage that the port of powering from described candidate receives;
Detection module is used to detect the current candidate who the powers port of powering, and sends detection signal according to the detected current candidate who the powers port of powering to control module;
Described control module is used to receive described detection signal, and powers to disconnect between port and the described DC-to-DC modular converter with the described current candidate who powers and be connected according to the current candidate who powers of the described detection signal control port of powering.
6. power supply treatment facility according to claim 5, it is characterized in that, described detection module comprises diode and voltage detection unit, wherein, described diode is arranged between the crosspoint of the positive output end of described adapter port and described telecommunication port and described DC-to-DC modular converter, and the positive pole of described diode is connected with the positive output end of described adapter port; Described voltage detection unit is used to detect between the negative output terminal of anodal and described adapter port of diode whether have voltage, if do not exist, knows that then the current candidate who the powers port of powering is described telecommunication port; If exist, know that then the current candidate who the powers port of powering is described adapter port.
7. according to claim 5 or 6 described power supply treatment facilities, it is characterized in that, described control module comprises first switch, second switch and control logic circuit, and wherein, described first switch is arranged between described telecommunication port and described adapter port and the described DC-to-DC modular converter; Described second switch is arranged between adapter port and described telecommunication port and the described DC-to-DC modular converter; Described control logic circuit is used for that to be used to indicate the current candidate who the powers port of powering be first detection signal of described telecommunication port if receive, and then controls first switch closure and second switch and disconnects; To be used to indicate the current candidate who the powers port of powering be second detection signal of described adapter port if receive, and then controls first switch and disconnect and the second switch closure.
8. power supply treatment facility according to claim 7 is characterized in that, described control module also is used for described first switch of control and described second switch closure before the port of being powered by the current candidate who powers of detection module detection.
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| CN2011102374763A CN102281145A (en) | 2011-08-18 | 2011-08-18 | Power supply processing method and device |
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| CN2011102374763A CN102281145A (en) | 2011-08-18 | 2011-08-18 | Power supply processing method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103268075A (en) * | 2013-04-27 | 2013-08-28 | 浙江宇视科技有限公司 | Power supply returning device |
| CN111628875A (en) * | 2019-02-28 | 2020-09-04 | 大唐移动通信设备有限公司 | Ethernet power supply equipment port power supply state indicating circuit and power supply equipment |
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| JP2007036832A (en) * | 2005-07-28 | 2007-02-08 | Canon Inc | Power supply circuit and peripheral device |
| CN101436786A (en) * | 2007-11-14 | 2009-05-20 | 环隆电气股份有限公司 | Power supply switching device and network appliance |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103268075A (en) * | 2013-04-27 | 2013-08-28 | 浙江宇视科技有限公司 | Power supply returning device |
| CN103268075B (en) * | 2013-04-27 | 2016-03-02 | 浙江宇视科技有限公司 | It is a kind of that power supply is counter send device |
| US9876392B2 (en) | 2013-04-27 | 2018-01-23 | Zhejiang Uniview Technologies Co., Ltd | Reversible powering device |
| CN111628875A (en) * | 2019-02-28 | 2020-09-04 | 大唐移动通信设备有限公司 | Ethernet power supply equipment port power supply state indicating circuit and power supply equipment |
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Application publication date: 20111214 |