CN201207533Y - Power supply construction for LNA-USB - Google Patents
Power supply construction for LNA-USB Download PDFInfo
- Publication number
- CN201207533Y CN201207533Y CNU2008200451491U CN200820045149U CN201207533Y CN 201207533 Y CN201207533 Y CN 201207533Y CN U2008200451491 U CNU2008200451491 U CN U2008200451491U CN 200820045149 U CN200820045149 U CN 200820045149U CN 201207533 Y CN201207533 Y CN 201207533Y
- Authority
- CN
- China
- Prior art keywords
- lna
- usb
- electric power
- feeding structure
- noise amplifier
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a power supply structure, in particular to an LNA-USB power supply structure that can arrange a USB male plug to be directly connected with a USB female plug through an LNA low-noise amplifier, wherein, a joint is arranged at one end of the LNA low-noise amplifier, and the other end thereof includes a line and a signal feed-in line, the line is connected with the USB male plug, and the signal feed-in line is connected with a digital TV stick. In such a manner, the USB female plug can achieve the connection with a video/audio playing device through improving the connecting mode, and the LNA low-noise amplifier can also be connected with a converter. So the USB male plug is connected with the USB female plug and provides the LNA low-noise amplifier with a power supply to achieve the effect of signal amplification.
Description
Technical field
The utility model relates to a kind of electric power-feeding structure, be meant that especially a kind of user of providing sees through a USB public plug that is arranged at the LNA low-noise amplifier and connects a USB female, and the LNA-USB electric power-feeding structure that is connected with a transducer again by this LNA low-noise amplifier.
Background technology
Produce the device ways of connecting relevant for electrical equipment, purpose is to provide the user to be able to this product of normal running.Above-mentioned connected mode, normally utilize LNA power amplifier two ends to set up a cable separately, wherein a cable is connected with TV box on being installed in automobile, this TV box by its link inside provide power supply to this LNA power amplifier for using to reach the signal amplification effect; Another cable then is connected with an antenna, provides this TV box to provide the user to watch on screen in receiving signal, decoding and coding back image output.
Yet this creator finds the means of above-mentioned connection power supply, can't use by the LNA signal amplifier from inner sufficient watt power supply on the DVB-T rod, can cause the reception poor effect of DVB-T rod indirectly, so the necessity that is improved is arranged.
The utility model content
The main purpose of the utility model is to provide a kind of LNA-USB electric power-feeding structure, is in a LNA low-noise amplifier one end one USB public plug to be set, and is used for USB female direct and on the audio-visual playback equipment and is connected.
The another purpose of the utility model is to provide a kind of LNA-USB electric power-feeding structure, can connect a transducer in the LNA low-noise amplifier other end.
So the LNA-USB electric power-feeding structure of the utility model is to be provided with a joint in a LNA low-noise amplifier one end, the other end comprises a circuit and a signal feed-in line, and this circuit connects a USB public plug, and this signal feed-in line connects a DVB-T rod.
By this, this USB public plug connects this USB female and provides this LNA low-noise amplifier power supply in order to reach the effect of signal amplification.
Description of drawings
Fig. 1 is the floor map of the utility model one preferred embodiment;
Fig. 2 is the floor map of another preferred embodiment of the utility model;
Fig. 3 is the floor map of the another preferred embodiment of the utility model.
The drawing reference numeral explanation:
1, LNA low-noise amplifier
11, joint
12, circuit
13, signal feed-in line
14, lead
2, USB public plug
3, transducer
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
See also shown in Figure 1, one preferred embodiment of the electric power-feeding structure of the utility model mainly is to be provided with a joint 11 in a LNA low-noise amplifier 1 one ends, the other end comprises a circuit 12 and a signal feed-in line 13, this circuit 12 connects a USB public plug 2, and this signal feed-in line 13 can connect a DVB-T rod (scheming not shown); By this, this USB public plug 2 can connect a USB female (scheming not shown) provides this LNA low-noise amplifier 1 power supply in order to amplify signal.
These LNA low-noise amplifier 1 one ends can not carry out the modularity design with other equipment (scheming not shown) on demand, make manufacturer have more elasticity when producing, and after the consumer purchases this series products, get and connect use with other equipment (scheming not shown) electricity again.
This USB female (scheming not shown), industry also is referred to as USB female plug seat, and in the present embodiment, then adopting the USB female is the element title, will not chat bright in this.
See also shown in Figure 2ly, the joint 11 of another preferred embodiment of the utility model can connect a transducer 3, can be the modularity design between this joint 11 and this transducer, and manufacturer can provide the whole group of consumer to purchase after producing.In the present embodiment, this transducer 3 is one to receive the RF DVB-T antenna of microwave signal from the space, but not as limit.In the present embodiment, this joint 11 is a RF joint, but not as limit.
See also shown in Figure 3, but 3 Jing of the LNA low-noise amplifier 1 of the another preferred embodiment of the utility model and this transducer establish a lead 14, make the design of three's modularity, 14 in this LNA low-noise amplifier 1 and lead are to link into an integrated entity, 3 of this lead 14 and this transducers are also for linking into an integrated entity, thereby these LNA low-noise amplifier 1 one ends are not provided with joint 11 as shown in Figure 1 and Figure 2.
See also Fig. 1 to shown in Figure 3, this USB female (scheming not shown) electrically connects with power source supply end (scheming not shown).
What deserves to be explained is that more this audio-visual playback equipment (scheming not shown) is to be selected from one of a notebook computer, PDA mobile phone, portable type gps satellite guider or the audio-visual main frame of automobile.
Combination by above-mentioned structure, please refer to Fig. 1 to Fig. 3, the user utilizes the signal that receives the DVB-T gain-type as the transducer 3 of RF DVB-T antenna, connect a DVB-T rod (scheming not shown) via signal feed-in line 13, the user only need see through USB public plug 2 connection one females (scheming not shown) provides additional power source to give this LNA low-noise amplifier 1, can reach the purpose that this LNA low-noise amplifier 1 carries out power amplification.So the user can connect a notebook computer (scheming not shown) via this USB female (scheming not shown) electricity, and watches the DVB-T program by the screen of this notebook computer (scheming not shown).
Therefore, the utlity model has and to make and provide sufficient watt power supply to carry out the effect of signal amplification from inside on the DVB-T rod, and then obtain the characteristic of good reception effect by the LNA low-noise amplifier.
The above, it only is the preferred embodiment of the utility model LNA-USB electric power-feeding structure, be not that technical scope of the present utility model is imposed any restrictions, so every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any trickle modification, equivalent variations and modification that above embodiment did.
Claims (8)
1, a kind of LNA-USB electric power-feeding structure, it is characterized in that: be provided with a joint in a LNA low-noise amplifier one end, the other end comprises that a circuit and can connect the signal feed-in line of DVB-T rod, and this circuit connects one can connect the USB female so that the USB public plug of this LNA low-noise amplifier power supply to be provided.
2, LNA-USB electric power-feeding structure according to claim 1, it is characterized in that: this joint connects a transducer.
3, LNA-USB electric power-feeding structure according to claim 2 is characterized in that: this joint is a RF joint, and this transducer is a RF DVB-T antenna.
4, LNA-USB electric power-feeding structure according to claim 2 is characterized in that: be the modularity project organization between this joint and this transducer.
5, LNA-USB electric power-feeding structure according to claim 2, it is characterized in that: Jing establishes a lead between this LNA low-noise amplifier and this transducer, link into an integrated entity between this LNA low-noise amplifier and this lead, between this lead and this transducer also for linking into an integrated entity.
6, LNA-USB electric power-feeding structure according to claim 1 is characterized in that: this a USB female and a power source supply end electrically connect.
7, LNA-USB electric power-feeding structure according to claim 6 is characterized in that: this power source supply end is arranged at an audio and video player device interior.
8, LNA-USB electric power-feeding structure according to claim 7 is characterized in that: this audio-visual playback equipment is notebook computer, PDA mobile phone, portable type gps satellite guider or the audio-visual main frame of automobile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200451491U CN201207533Y (en) | 2008-03-20 | 2008-03-20 | Power supply construction for LNA-USB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200451491U CN201207533Y (en) | 2008-03-20 | 2008-03-20 | Power supply construction for LNA-USB |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201207533Y true CN201207533Y (en) | 2009-03-11 |
Family
ID=40466590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200451491U Expired - Fee Related CN201207533Y (en) | 2008-03-20 | 2008-03-20 | Power supply construction for LNA-USB |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201207533Y (en) |
-
2008
- 2008-03-20 CN CNU2008200451491U patent/CN201207533Y/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090311 Termination date: 20140320 |