CN206611348U - POE electric power systems - Google Patents
POE electric power systems Download PDFInfo
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- CN206611348U CN206611348U CN201720334851.9U CN201720334851U CN206611348U CN 206611348 U CN206611348 U CN 206611348U CN 201720334851 U CN201720334851 U CN 201720334851U CN 206611348 U CN206611348 U CN 206611348U
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Abstract
The utility model provides a kind of POE electric power systems, and the POE power supply modules include：Control chip, voltage reduction circuit, rectification circuit, Voltage Feedback detection circuit and DC output circuit；The high voltage of the voltage reduction circuit output, low-voltage are connected with the pin 1 and pin 7 of the control chip respectively, the output end of the rectification circuit is connected between the pin 3 of the control chip and pin 7 respectively, the output end of the Voltage Feedback detection circuit is connected to the pin 12 of the control chip, and the input of the DC output circuit is connected to the pin 9 of the control chip.The utility model POE electric power systems improve output power.
Description
Technical field
The utility model is related to gate control system field, more particularly to a kind of POE electric power systems.
Background technology
Current POE electric power systems are developed rapidly, POE (Power over a large amount of quick popularizations of network
Ethernet), Chinese is commonly referred to as power over Ethernet, refers in existing Ethernet Cat.5 wirings architecture not
In the case of doing any change, while transmitting data-signal to be based partially on IP terminal device, moreover it is possible to be this kind equipment
The technology of electrical power, including PSE (Power Sourcing Equipment, power supply unit), PD (Powered are provided
Device, power receiving equipment) two parts.
However, for current POE supply standards 802.3af, PD ends being only 12.95W by electrical power, for more Gao Gong
The POE supply standard 802.3at of rate, its PD end by electrical power also only only have 25W.Its power can not meet powerful device
Job requirement.
Utility model content
The utility model provides a kind of POE electric power systems, to overcome above-mentioned technical problem.
A kind of POE electric power systems of the utility model, including：
Control chip LM5070, voltage reduction circuit, rectification circuit, Voltage Feedback detection circuit and direct current output electricity
Road；
Pin 1 and pin 7 of the high voltage, low-voltage of the voltage reduction circuit output respectively with the control chip connect
Connect, the output end of the rectification circuit is connected between the pin 3 of the control chip and pin 7 respectively, the Voltage Feedback inspection
The output end of slowdown monitoring circuit is connected to the pin 12 of the control chip, and the input of the DC output circuit is connected to the control
The pin 9 of coremaking piece.
Further, the voltage reduction circuit includes：
First bridge rectifier D 1, the second bridge rectifier D 5, electric capacity C8 and two-way type transient voltage suppressor
SMBJ60CA；
The pin 4 of first bridge rectifier D 1 and the pin 4 of second bridge rectifier D 5 are connected as decompression control
The pin 3 of the low-voltage of circuit output processed, the pin 3 of first bridge rectifier D 1 and second bridge rectifier D 5 connects
The high voltage of voltage reduction circuit output is connected in, the electric capacity C8 two ends connect the high voltage and the low-voltage, institute respectively
The two ends for stating two-way type transient voltage suppressor SMBJ60CA connect the high voltage and the low-voltage respectively.
Further, the Voltage Feedback detection circuit includes：
Resistance R27, resistance R18, resistance R51, resistance R26, resistance R24, electric capacity C1, electric capacity U6, shunt regulator U8 with
And photoelectrical coupler U5；
One end of the resistance R18 connections DC output circuit is the input that the Voltage Feedback detects circuit,
The other end is connected to the adjustment end of the shunt regulator, resistance R51 and resistance R26, the other end of the resistance R51 with
The output end connection of the resistance R24, the shunt regulator is connected after the electric capacity U6 series connection respectively, the resistance R26 is another
One end is grounded after being connected with the input of the shunt regulator, the other end and the photoelectrical coupler of the resistance R24
Pin 2 is connected, and the connection of pin 1 detects the input of circuit with the Voltage Feedback, and pin 3 is grounded, and pin 4 is that the voltage is anti-
The output end of feedback detection circuit is connected with control chip respectively, is grounded after being connected with the resistance R27, electric capacity C1.
Further, the DC output circuit includes：
High frequency transformer U3, voltage-regulator diode D2, voltage-regulator diode D20, resistance R7, resistance R23, electric capacity C4, electric capacity C6,
Electric capacity C46, electric capacity C49, inductance L1 and FET Q2；
The pin 1 of the high frequency transformer U3, the field are connected after the resistance R7 and voltage-regulator diode D2 series connection
Effect pipe Q2 grid and the pin 9 of control chip are connected as the input of the DC output circuit, the FET Q2
The drain electrode connection high frequency transformer pin 4, the source electrode of the FET Q2 connects ground connection with resistance R23, it is described surely
Pressure diode D20 positive pole is connected with the high frequency transformer pin 9, the negative pole of the voltage-regulator diode D20 respectively with it is described
Electric capacity C4, electric capacity C6 and the inductance L1 connections, the other end of the inductance are connected as institute with electric capacity C46, electric capacity C49 respectively
State the output end of DC output circuit.
The utility model POE electric power systems improve output power.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are
Some embodiments of the present utility model, for those of ordinary skill in the art, are not paying the premise of creative labor
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the utility model POE electric power systems；
Fig. 2 is the circuit theory diagrams of the utility model POE electric power systems.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that retouched
The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made is belonged to
The scope of the utility model protection.
Fig. 1 is the structural representation of the utility model POE electric power systems, as shown in figure 1, the system of the present embodiment can be wrapped
Include：
Control chip 101, voltage reduction circuit 102, rectification circuit 103, Voltage Feedback detection circuit 104 and direct current are defeated
Go out circuit 105；
The high voltage of voltage reduction circuit output, low-voltage respectively with the pin 1 of the control chip LM5070 and
Pin 7 is connected, and the output end of the rectification circuit is connected between the pin 3 of the control chip and pin 7 respectively, the voltage
The output end of feedback sense circuit is connected to the pin 12 of the control chip, and the input of the DC output circuit is connected to
The pin 9 of the control chip.
Further, as shown in Fig. 2 the voltage reduction circuit includes：
First bridge rectifier D 1, the second bridge rectifier D 5, electric capacity C8 and two-way type transient voltage suppressor
SMBJ60CA；
The pin 4 of first bridge rectifier D 1 and the pin 4 of second bridge rectifier D 5 are connected as decompression control
The pin 3 of the low-voltage of circuit output processed, the pin 3 of first bridge rectifier D 1 and second bridge rectifier D 5 connects
The high voltage of voltage reduction circuit output is connected in, the electric capacity C8 two ends connect the high voltage and the low-voltage, institute respectively
The two ends for stating two-way type transient voltage suppressor SMBJ60CA connect the high voltage and the low-voltage respectively.
Further, the Voltage Feedback detection circuit includes：
Resistance R27, resistance R18, resistance R51, resistance R26, resistance R24, electric capacity C1, electric capacity U6, shunt regulator U8 with
And photoelectrical coupler U5；
One end of the resistance R18 connections DC output circuit is the input that the Voltage Feedback detects circuit,
The other end is connected to the adjustment end of the shunt regulator, resistance R51 and resistance R26, the other end of the resistance R51 with
The output end connection of the resistance R24, the shunt regulator is connected after the electric capacity U6 series connection respectively, the resistance R26 is another
One end is grounded after being connected with the input of the shunt regulator, the other end and the photoelectrical coupler of the resistance R24
Pin 2 is connected, and the connection of pin 1 detects the input of circuit with the Voltage Feedback, and pin 3 is grounded, and pin 4 is that the voltage is anti-
The output end of feedback detection circuit is connected with control chip respectively, is grounded after being connected with the resistance R27, electric capacity C1.
Further, the DC output circuit includes：
High frequency transformer U3, voltage-regulator diode D2, voltage-regulator diode D20, resistance R7, resistance R23, electric capacity C4, electric capacity C6,
Electric capacity C46, electric capacity C49, inductance L1 and FET Q2；
The pin 1 of the high frequency transformer U3, the field are connected after the resistance R7 and voltage-regulator diode D2 series connection
Effect pipe Q2 grid and the pin 9 of control chip are connected as the input of the DC output circuit, the FET Q2
The drain electrode connection high frequency transformer pin 4, the source electrode of the FET Q2 connects ground connection with resistance R23, it is described surely
Pressure diode D20 positive pole is connected with the high frequency transformer pin 9, the negative pole of the voltage-regulator diode D20 respectively with it is described
Electric capacity C4, electric capacity C6 and the inductance L1 connections, the other end of the inductance are connected as institute with electric capacity C46, electric capacity C49 respectively
State the output end of DC output circuit.
The utility model improves output power by POE electric power systems, meets the job requirement of powerful device.
Finally it should be noted that：Various embodiments above is only limited to illustrate the technical solution of the utility model, rather than to it
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, or to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (4)
1. a kind of POE electric power systems, it is characterised in that the POE power supply modules include：
Control chip LM5070, voltage reduction circuit, rectification circuit, Voltage Feedback detection circuit and DC output circuit；
The high voltage of the voltage reduction circuit output, low-voltage are connected with the pin 1 and pin 7 of the control chip respectively,
The output end of the rectification circuit is connected between the pin 3 of the control chip and pin 7 respectively, the Voltage Feedback detection electricity
The output end on road is connected to the pin 12 of the control chip, and the input of the DC output circuit is connected to the control core
The pin 9 of piece.
2. system according to claim 1, it is characterised in that the voltage reduction circuit includes：
First bridge rectifier D 1, the second bridge rectifier D 5, electric capacity C8 and two-way type transient voltage suppressor G1；
The pin 4 of first bridge rectifier D 1 and the pin 4 of second bridge rectifier D 5 are connected as decompression control electricity
The pin 3 of the low-voltage of road output, the pin 3 of first bridge rectifier D 1 and second bridge rectifier D 5 is connected as
The high voltage of voltage reduction circuit output, the electric capacity C8 two ends connect the high voltage and the low-voltage respectively, described double
The high voltage and the low-voltage are connected respectively to type transient voltage suppressor G1 two ends.
3. system according to claim 1, it is characterised in that the Voltage Feedback detection circuit includes：
Resistance R27, resistance R18, resistance R51, resistance R26, resistance R24, electric capacity C1, electric capacity U6, shunt regulator U8 and light
Electric coupler U5；
One end of the resistance R18 connections DC output circuit is the input that the Voltage Feedback detects circuit, another
End is connected to adjustment end, resistance R51 and the resistance R26 of the shunt regulator, the other end of the resistance R51 with it is described
The output end connection of the resistance R24, the shunt regulator, the resistance R26 other ends are connected after electric capacity U6 series connection respectively
It is grounded after being connected with the input of the shunt regulator, the other end of the resistance R24 and the pin 2 of the photoelectrical coupler
Connection, the connection of pin 1 detects the input of circuit with the Voltage Feedback, and pin 3 is grounded, and pin 4 is examined for the Voltage Feedback
The output end of slowdown monitoring circuit is connected with control chip respectively, is grounded after being connected with the resistance R27, electric capacity C1.
4. system according to claim 1, it is characterised in that the DC output circuit includes：
High frequency transformer U3, voltage-regulator diode D2, voltage-regulator diode D20, resistance R7, resistance R23, electric capacity C4, electric capacity C6, electric capacity
C46, electric capacity C49, inductance L1 and FET Q2；
The pin 1 of the high frequency transformer U3, the field-effect are connected after the resistance R7 and voltage-regulator diode D2 series connection
Pipe Q2 grid and the pin 9 of control chip are connected as the input of the DC output circuit, the leakage of the FET Q2
Pole connects the pin 4 of the high frequency transformer, and the source electrode of the FET Q2 is connected ground connection, the voltage stabilizing two with resistance R23
Pole pipe D20 positive pole is connected with the high frequency transformer pin 9, the negative pole of the voltage-regulator diode D20 respectively with the electric capacity
C4, electric capacity C6 and the inductance L1 connections, the other end of the inductance are connected as described straight with electric capacity C46, electric capacity C49 respectively
Flow the output end of output circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720334851.9U CN206611348U (en) | 2017-03-31 | 2017-03-31 | POE electric power systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720334851.9U CN206611348U (en) | 2017-03-31 | 2017-03-31 | POE electric power systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206611348U true CN206611348U (en) | 2017-11-03 |
Family
ID=60173364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720334851.9U Active CN206611348U (en) | 2017-03-31 | 2017-03-31 | POE electric power systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206611348U (en) |
-
2017
- 2017-03-31 CN CN201720334851.9U patent/CN206611348U/en active Active
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