CN203747849U - Power supply adapter - Google Patents
Power supply adapter Download PDFInfo
- Publication number
- CN203747849U CN203747849U CN201420039088.3U CN201420039088U CN203747849U CN 203747849 U CN203747849 U CN 203747849U CN 201420039088 U CN201420039088 U CN 201420039088U CN 203747849 U CN203747849 U CN 203747849U
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- CN
- China
- Prior art keywords
- input end
- connects
- signal output
- resistance
- power supply
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- Expired - Fee Related
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Abstract
The utility model provides a power supply adapter. The adapter comprises an alternating current input terminal L, an alternating current input terminal N, a protection circuit, an AC/DC conversion module, an output terminal anode and an output terminal cathode. The alternating current input terminal L and the alternating current input terminal N are connected to the protection circuit respectively. An output terminal of the protection circuit is connected to the AC/DC conversion module. The AC/DC conversion module is connected to the output terminal anode and the output terminal cathode respectively. The adapter is characterized in that the adapter also comprises a first high-voltage isolation capacitor, a second high-voltage isolation capacitor, a first signal output terminal and a second signal output terminal; one end of the first high-voltage isolation capacitor is connected to the alternating current input terminal L and the other end is connected to the first signal output terminal; one end of the second high-voltage isolation capacitor is connected to the alternating current input terminal N and the other end is connected to the second signal output terminal. The adapter of the utility model can provide a current and signals for built-in PLC equipment.
Description
Technical field
The utility model relates to network communication field, relates in particular to a kind of power supply adaptor.
Background technology
Existing power supply adaptor is made up of protective circuit, AC/DC modular converter, direct current supply line.Wherein, direct current supply line is made up of two lines: power line and ground wire.This common power adapter can only provide for equipment the function of direct current supply.
Along with PLC(Power Line Communication, power line communication) birth of technology, by utilizing the power line of transmission current as communications carrier, realize the coupling of signal to power line, owing to can directly utilizing existing distribution network as transmission line, so need not additionally connect up, thereby greatly reduce the investment of network, reduced cost, PLC can be penetrated into each room like a cork, for great space is created in the development of home interconnect net.
Fast development and the trend of complying with prior art, the utility model provides a kind of power supply adaptor, and the equipment that can be inside PLC provides electric current and signal.
Utility model content
In view of this, need to provide a kind of power supply adaptor, the equipment that can be inside PLC provides electric current and signal.
The utility model provides a kind of power supply adaptor; comprise ac input end L, ac input end N, protective circuit, AC/DC modular converter, output head anode, negative pole of output end; described ac input end L, ac input end N are connected with described protective circuit respectively; the output of described protective circuit connects described AC/DC modular converter; described AC/DC modular converter connects respectively described output head anode, negative pole of output end, it is characterized in that:
Described adapter also comprises: the first high pressure isolation capacitance, the second high pressure isolation capacitance, first signal output and secondary signal output;
One end of described the first high pressure isolation capacitance connects described ac input end L, and the other end connects described first signal output; One end of described the second high pressure isolation capacitance connects described interchange input line N, and the other end connects described secondary signal output.
Preferably, described first signal output, secondary signal output connect PLC equipment, transmit for signal.
Preferably, described protective circuit comprises common mode inductance and piezo-resistance;
The first pin of described common mode inductance connects described ac input end L, crus secunda connects described ac input end N, tripod connects one end and the described AC/DC modular converter of described piezo-resistance, and the 4th pin connects the other end and the described AC/DC modular converter of described piezo-resistance.
Preferably, described ac input end L, ac input end N are connected to described common mode inductance by anti-surge circuit.
Preferably, described anti-surge circuit comprises the first resistance, the second resistance, the first inductance and the second inductance;
Described the first resistance and the first inductance in parallel, be connected in the first pin of described ac input end L and described common mode inductance;
Described the second resistance and the second inductance in parallel, be connected in the crus secunda of described ac input end N and described common mode inductance.
Because this power supply adaptor has comprised the first high pressure isolation capacitance, the second high pressure isolation capacitance, first signal output and secondary signal output, in the time having PLC signal on power line, be that signal and alternating current while entering this adapter simultaneously, by the first high pressure isolation capacitance, the second high pressure isolation capacitance, alternating current is isolated, signal is separated through first signal output and the output of secondary signal output, and the equipment that can be inside PLC provides signal.
Brief description of the drawings
The circuit diagram of a kind of power supply adaptor that Fig. 1 provides for the utility model embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Please refer to Fig. 1, the circuit diagram of a kind of power supply adaptor that Fig. 1 provides for the utility model, as shown in the figure, this circuit comprises: ac input end L, ac input end N, protective circuit 10, AC/DC modular converter, output head anode DC, negative pole of output end GND, ac input end L, ac input end N is connected with protective circuit 10 respectively, the output of protective circuit 10 connects AC/DC modular converter 20, AC/DC modular converter 20 connects respectively output head anode DC, negative pole of output end GND, wherein, this adapter also comprises: high pressure isolation capacitance C1, high pressure isolation capacitance C2, signal output part L ' and signal output part N ', one end of high pressure isolation capacitance C1 connects ac input end L, and the other end connects signal output part L ', one end of high pressure isolation capacitance C2 connects interchange input line N, and the other end connects signal output part N '.
Further, protective circuit 10 comprises common mode inductance LF1 and piezo-resistance RV; 1 pin of common mode inductance LF1 connects ac input end L, and 2 pin connect ac input end N, and 3 pin connect one end of piezo-resistance RV and the other end and the AC/DC modular converter 20 of AC/DC modular converter 20,4 pin connection piezo-resistance RV.
Further, ac input end L, ac input end N are connected to common mode inductance LF1 by anti-surge circuit 30.Concrete, anti-surge circuit 30 comprises resistance R 1, resistance R 2, inductance L 1 and inductance L 2; Resistance R 1 is in parallel with inductance L 1, is connected in 1 pin of ac input end L and common mode inductance LFQ; Resistance R 2 is in parallel with inductance L 2, is connected in 2 pin of ac input end N and common mode inductance LF1.
Above-described embodiment provides a kind of adapter, signal output part L ' and signal output part N ' are comprised, can be understood as, two holding wires in direct current supply line, are increased, in the time having PLC (Homeplug) signal on family's power line, signal and 220V alternating current enter this adapter simultaneously, because the frequency of 220V power supply is 50hz, and the frequency of signal is 2M-68Mhz, so by high pressure isolation capacitance C1, C2, by 220V isolated from power, signal enters PLC equipment through signal output part L ' and signal output part N ' in power line after separating, between two PLC, can set up communication.220V power supply can enter AC/DC modular converter and electric main be changed into the DC power supply needing simultaneously.This adapter can meet the object that signal transmits in adapter, for the equipment of inside PLC provides electric current and signal.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (5)
1. a power supply adaptor; comprise ac input end L, ac input end N, protective circuit, AC/DC modular converter, output head anode, negative pole of output end; described ac input end L, ac input end N are connected with described protective circuit respectively; the output of described protective circuit connects described AC/DC modular converter; described AC/DC modular converter connects respectively described output head anode, negative pole of output end, it is characterized in that:
Described adapter also comprises: the first high pressure isolation capacitance, the second high pressure isolation capacitance, first signal output and secondary signal output;
One end of described the first high pressure isolation capacitance connects described ac input end L, and the other end connects described first signal output; One end of described the second high pressure isolation capacitance connects described interchange input line N, and the other end connects described secondary signal output.
2. power supply adaptor as claimed in claim 1, is characterized in that, described first signal output, secondary signal output connect PLC equipment, transmit for signal.
3. power supply adaptor as claimed in claim 2, is characterized in that, described protective circuit comprises common mode inductance and piezo-resistance;
The first pin of described common mode inductance connects described ac input end L, crus secunda connects described ac input end N, tripod connects one end and the described AC/DC modular converter of described piezo-resistance, and the 4th pin connects the other end and the described AC/DC modular converter of described piezo-resistance.
4. power supply adaptor as claimed in claim 3, is characterized in that, described ac input end L, ac input end N are connected to described common mode inductance by anti-surge circuit.
5. power supply adaptor as claimed in claim 4, is characterized in that, described anti-surge circuit comprises the first resistance, the second resistance, the first inductance and the second inductance;
Described the first resistance and the first inductance in parallel, be connected in the first pin of described ac input end L and described common mode inductance;
Described the second resistance and the second inductance in parallel, be connected in the crus secunda of described ac input end N and described common mode inductance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420039088.3U CN203747849U (en) | 2014-01-22 | 2014-01-22 | Power supply adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420039088.3U CN203747849U (en) | 2014-01-22 | 2014-01-22 | Power supply adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203747849U true CN203747849U (en) | 2014-07-30 |
Family
ID=51347598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420039088.3U Expired - Fee Related CN203747849U (en) | 2014-01-22 | 2014-01-22 | Power supply adapter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203747849U (en) |
-
2014
- 2014-01-22 CN CN201420039088.3U patent/CN203747849U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20150122 |
|
| EXPY | Termination of patent right or utility model |