CN220022814U - Network interface poe power supply circuit - Google Patents
Network interface poe power supply circuit Download PDFInfo
- Publication number
- CN220022814U CN220022814U CN202320506324.7U CN202320506324U CN220022814U CN 220022814 U CN220022814 U CN 220022814U CN 202320506324 U CN202320506324 U CN 202320506324U CN 220022814 U CN220022814 U CN 220022814U
- Authority
- CN
- China
- Prior art keywords
- pin
- network interface
- resistor
- capacitor
- network
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003990 capacitor Substances 0.000 claims description 36
- 238000000034 method Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The utility model provides a network interface poe power supply circuit which can reduce the heating condition of a single bridge stack. The 7 pin and the 8 pin of the network interface are connected with a first AC end of the first bridge stack and the signal matching circuit; the 4 pin and the 5 pin of the network interface are connected with a first AC end of the second bridge stack and the signal matching circuit; the 1 pin of the network interface is connected with the 16 pin of the network transformer; the 2 pin of the network interface is connected with the 14 pin of the network transformer; the 3 pin of the network interface is connected with the 11 pin of the network transformer; the 6 pin of the network interface is connected with the 9 pin of the network transformer; the 10 pin of the network transformer is connected with the second AC end of the first bridge stack and the signal matching circuit; and the 15 pin of the network transformer is connected with the second AC end of the second bridge stack and the signal matching circuit.
Description
Technical Field
The utility model relates to a network interface poe power supply circuit which is mainly used for image pickup equipment.
Background
POE (Power Over Ethernet) is a technology for transmitting data signals to IP-based terminals (such as IP phones, wireless lan access points AP, webcams, etc.) while providing dc power to such devices without any modification to the existing ethernet cat.5 wiring infrastructure. The POE technology can ensure the normal operation of the existing network while ensuring the safety of the existing structured wiring, and the cost is reduced to the greatest extent.
Referring to fig. 1, a conventional poe power supply circuit, whether adopting 1, 2, 3, 6, or 4, 5, 7, 8 pins of a net wire, can flow in and out of a bridge stack, and can cause overheating of a single bridge stack under the conditions of small volume and large heat productivity in a miniaturized product.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, and provides a network interface poe power supply circuit with reasonable structural design, which can reduce the heating condition of a single bridge stack.
The utility model solves the problems by adopting the following technical scheme: a network interface POE power supply circuit comprises a network interface, a network transformer, a POE module and a signal matching circuit; the POE module comprises a first bridge pile and a second bridge pile, and the first bridge pile is connected with the second bridge pile; the method is characterized in that: the 7 pin and the 8 pin of the network interface are connected with a first AC end of the first bridge stack and the signal matching circuit; the 4 pin and the 5 pin of the network interface are connected with a first AC end of the second bridge stack and the signal matching circuit; the 1 pin of the network interface is connected with the 16 pin of the network transformer; the 2 pin of the network interface is connected with the 14 pin of the network transformer; the 3 pin of the network interface is connected with the 11 pin of the network transformer; the 6 pin of the network interface is connected with the 9 pin of the network transformer; the 10 pin of the network transformer is connected with the second AC end of the first bridge stack and the signal matching circuit; and the 15 pin of the network transformer is connected with the second AC end of the second bridge stack and the signal matching circuit.
The signal matching circuit comprises a first matching module, a second matching module, a third matching module and a fourth matching module; the first matching module comprises a first resistor and a first capacitor, the first resistor and the first capacitor are connected in series, and the first capacitor is grounded; the second matching module comprises a second resistor and a second capacitor, the second resistor and the second capacitor are connected in series, and the second capacitor is grounded; the third matching module comprises a third resistor and a third capacitor, the third resistor and the third capacitor are connected in series, and the third capacitor is grounded; the fourth matching module comprises a fourth resistor and a fourth capacitor, the fourth resistor and the fourth capacitor are connected in series, and the fourth capacitor is grounded.
The 7 pins and the 8 pins of the network interface are connected with a fourth resistor of a fourth matching module.
The 4 pin and the 5 pin of the network interface are connected with a third resistor of a third matching module.
The 10 pin of the network transformer is connected with the first resistor of the first matching module.
The 15 pin of the network transformer is connected with the second resistor of the second matching module.
The network interface of the utility model is an RJ45 interface.
Compared with the prior art, the utility model has the following advantages and effects: no matter 1, 2 feet, 3, 6 feet, or 4, 5 feet, 7, 8 feet of the net wire are adopted, the inflow of the power supply current flows in the two bridge stacks, the heating condition of a single bridge stack can be reduced, and the heating value of the single bridge stack is reduced by half compared with that of the traditional mode, so that the reliability of the POE module is improved.
Drawings
Fig. 1 is a schematic circuit diagram of the prior art.
Fig. 2 is a schematic circuit diagram of an embodiment of the present utility model.
Detailed Description
The present utility model will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present utility model and not limited to the following examples.
Referring to fig. 2, an embodiment of the present utility model primarily provides power to the device and transmits audio, video data and related setup control information, which includes a network interface J, a network transformer T, POE module, and a signal matching circuit.
The POE module comprises a first bridge pile D1 and a second bridge pile D2, and the first bridge pile D1 is connected with the second bridge pile D2.
The signal matching circuit comprises a first matching module, a second matching module, a third matching module and a fourth matching module. The first matching module comprises a first resistor R1 and a first capacitor C1, the first resistor R1 and the first capacitor C1 are connected in series, and the first capacitor C1 is grounded. The second matching module comprises a second resistor R2 and a second capacitor C2, the second resistor R2 and the second capacitor C2 are connected in series, and the second capacitor C2 is grounded. The third matching module comprises a third resistor R3 and a third capacitor C3, the third resistor R3 and the third capacitor C3 are connected in series, and the third capacitor C3 is grounded. The fourth matching module comprises a fourth resistor R4 and a fourth capacitor C4, the fourth resistor R4 and the fourth capacitor C4 are connected in series, and the fourth capacitor C4 is grounded.
The pins 7 and 8 of the network interface J are both connected to the first AC terminal of the bridge stack No. D1 and also to the fourth resistor R4 of the fourth matching module.
The pins 4 and 5 of the network interface J are both connected to the first AC terminal of the bridge stack No. two D2 and also to the third resistor R3 of the third matching module.
The 1 pin of the network interface J is connected with the 16 pin of the network transformer T; the pin 2 of the network interface J is connected with the pin 14 of the network transformer T.
The 3 pin of the network interface J is connected with the 11 pin of the network transformer T; the 6 pin of the network interface J is connected with the 9 pin of the network transformer T.
The 10 pin of the network transformer T is connected to the second AC terminal of the bridge stack D1 and is also connected to the first resistor R1 of the first matching module.
The 15 pin of the network transformer T is connected to the second AC terminal of the bridge stack No. two D2 and is also connected to the second resistor R2 of the second matching module.
The network interface J is an RJ45 interface.
Assume that pins 7 and 8 of the network interface J are the positive power supply poles. After the switch network cable with poe power is connected to the network interface J, the data signal is isolated by the transformer T and then sent to the subsequent circuit through pins 1 and 3 and pins 6 and 8. The power supply inputs a first AC end of a first bridge stack D1 and a first AC end of a second bridge stack D2 through pins 4 and 5 and pins 7 and 8 of a network interface J; or the power is input into the 10 pins and 15 pins of the network transformer T through the 1 pin and the 2 pin and the 3 pin and the 6 pin of the network interface J, and then is sent to the second AC end of the first bridge stack D1 and the second AC end of the second bridge stack D2. In the two modes, after the current flows out of the bridge pile and passes through the load RL, the current returns to pins 4 and 5 or pins 7 and 8 of the network interface J respectively. Compared with the traditional POE module circuit, the current does not flow through 2 diodes in one bridge pile, the heating value of a single bridge pile is reduced by half, and the reliability of the circuit is improved.
In addition, it should be noted that the specific embodiments described in the present specification may vary from part to part, from name to name, etc., and the above description in the present specification is merely illustrative of the structure of the present utility model. All equivalent or simple changes of the structure, characteristics and principle according to the inventive concept are included in the protection scope of the present patent. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions in a similar manner without departing from the scope of the utility model as defined in the accompanying claims.
Claims (7)
1. A network interface POE power supply circuit comprises a network interface, a network transformer, a POE module and a signal matching circuit; the POE module comprises a first bridge pile and a second bridge pile, and the first bridge pile is connected with the second bridge pile; the method is characterized in that: the 7 pin and the 8 pin of the network interface are connected with a first AC end of the first bridge stack and the signal matching circuit; the 4 pin and the 5 pin of the network interface are connected with a first AC end of the second bridge stack and the signal matching circuit; the 1 pin of the network interface is connected with the 16 pin of the network transformer; the 2 pin of the network interface is connected with the 14 pin of the network transformer; the 3 pin of the network interface is connected with the 11 pin of the network transformer; the 6 pin of the network interface is connected with the 9 pin of the network transformer; the 10 pin of the network transformer is connected with the second AC end of the first bridge stack and the signal matching circuit; and the 15 pin of the network transformer is connected with the second AC end of the second bridge stack and the signal matching circuit.
2. The network interface poe power supply circuit of claim 1, further comprising: the signal matching circuit comprises a first matching module, a second matching module, a third matching module and a fourth matching module; the first matching module comprises a first resistor and a first capacitor, the first resistor and the first capacitor are connected in series, and the first capacitor is grounded; the second matching module comprises a second resistor and a second capacitor, the second resistor and the second capacitor are connected in series, and the second capacitor is grounded; the third matching module comprises a third resistor and a third capacitor, the third resistor and the third capacitor are connected in series, and the third capacitor is grounded; the fourth matching module comprises a fourth resistor and a fourth capacitor, the fourth resistor and the fourth capacitor are connected in series, and the fourth capacitor is grounded.
3. The network interface poe power supply circuit of claim 2, further comprising: and the 7 pins and the 8 pins of the network interface are connected with a fourth resistor of a fourth matching module.
4. The network interface poe power supply circuit of claim 2, further comprising: and the 4 pin and the 5 pin of the network interface are connected with a third resistor of a third matching module.
5. The network interface poe power supply circuit of claim 2, further comprising: and the 10 pin of the network transformer is connected with the first resistor of the first matching module.
6. The network interface poe power supply circuit of claim 2, further comprising: and the 15 pin of the network transformer is connected with the second resistor of the second matching module.
7. The network interface poe power supply circuit of claim 1, further comprising: the network interface is an RJ45 interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320506324.7U CN220022814U (en) | 2023-03-16 | 2023-03-16 | Network interface poe power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320506324.7U CN220022814U (en) | 2023-03-16 | 2023-03-16 | Network interface poe power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220022814U true CN220022814U (en) | 2023-11-14 |
Family
ID=88692681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320506324.7U Active CN220022814U (en) | 2023-03-16 | 2023-03-16 | Network interface poe power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220022814U (en) |
-
2023
- 2023-03-16 CN CN202320506324.7U patent/CN220022814U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106100858A (en) | A kind of standard POE is integrated with forcing nonstandard POE by electricity power circuit | |
| CN103152183A (en) | Electric modem switching device and method for mutual switching of electric signals and network signals | |
| CN106888099A (en) | A kind of simple compatible POE electric supply installations | |
| CN207490950U (en) | A kind of PoE turns USB power supply units | |
| US9490767B2 (en) | Network signal coupling circuit assembly | |
| CN203399204U (en) | Embedded network hard disk video recorder and network hard disk video recording system | |
| CN220022814U (en) | Network interface poe power supply circuit | |
| CN203313213U (en) | Power line carrier multi-media high-speed broadband Internet terminal device | |
| CN100508461C (en) | Two-line cable power supply device, power receiving device, system and method | |
| US10509453B2 (en) | Electronic communications device, particularly Power-over-Ethernet terminal, as well as add-on board | |
| WO2021196677A1 (en) | Optical network unit and poe power supply system | |
| CN108880828B (en) | Power supply equipment PSE and common mode differential mode self-adaptive power supply method | |
| CN103973520A (en) | Power line carrier multi-medium high-speed broadband interconnection terminal device | |
| CN205864445U (en) | A kind of standard POE is integrated with forcing nonstandard POE by electricity power circuit | |
| CN111314092B (en) | PD circuit based on relay control | |
| CN201674569U (en) | POE set top box | |
| CN209134431U (en) | Power supply unit and system | |
| CN212255470U (en) | Current stepping sampling circuit of circuit breaker, equipment and Internet of things system | |
| CN210839610U (en) | Series Ethernet power supply system | |
| CN212086216U (en) | High-power photoelectric isolation POE module | |
| CN208189362U (en) | A kind of 400 volts of Open Type Electric Current Mutual Inductor components | |
| CN109039659B (en) | Fast reverse power supply system and local side equipment | |
| CN107809318B (en) | Method for adding POE function to equipment | |
| CN203313216U (en) | Multi-medium internet gateway device | |
| CN211183976U (en) | Nonstandard PoE power supply equipment, powered equipment and cascade power supply circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |