CN203193775U - Power supply system for HDMI high definition signal distributor - Google Patents
Power supply system for HDMI high definition signal distributor Download PDFInfo
- Publication number
- CN203193775U CN203193775U CN 201320065228 CN201320065228U CN203193775U CN 203193775 U CN203193775 U CN 203193775U CN 201320065228 CN201320065228 CN 201320065228 CN 201320065228 U CN201320065228 U CN 201320065228U CN 203193775 U CN203193775 U CN 203193775U
- Authority
- CN
- China
- Prior art keywords
- circuit
- hdmi
- power supply
- definition signal
- signal distributor
- 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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- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a power supply system for an HDMI high definition signal distributor. The power supply system for an HDMI high definition signal distributor is characterized by comprising a machine shell and an AC plug head input circuit, wherein an AC-to-DC conversion power source module converting circuit, an overvoltage protection circuit, a power source system power supply circuit, an HDMI input interface circuit, an HDMI signal distribution and amplification circuit, and an HDMI output interface circuit are arranged in the machine shell; and the AC-to-DC conversion power source module converting circuit is connected with the AC plug head input circuit. Compared with the technology of the prior art, the power supply system for an HDMI high definition signal distributor is advantageous in that power is supplied to the HDMI high definition signal distributor by adopting a mode that power is supplied by an internal power source, the device can work normally just by directly plugging a 110V-240V alternating current voltage plug head, device arrangement and device installation are simplified, the overvoltage protection circuit is included, and therefore the problem that the distributor is damaged due to unstable alternating current voltage can be prevented.
Description
Technical field
The utility model relates to the power electronic equipment device, relates in particular to a kind of electric power system of HDMI high-definition signal distributor.
Background technology
The power supply supply power mode of the HDMI high-definition signal distributor that adopts on the market at present, is to give the power supply of HDMI high-definition signal distributor by external power supply adapter (power supply adaptor mainly is that the alternating voltage with 110V-240V converts direct current 12V or direct current 5V to).Under same workplace, the output voltage of the power supply adaptor of distinct device is inequality, cause the user when giving power devices easily like this, equipment mismatch power supply adaptor causes overtension and damage equipment, exist very big potential safety hazard, and apparatus arrangement and practical aspect also seem more loaded down with trivial details.
The utility model content
The utility model provides a kind of electric power system of HDMI high-definition signal distributor in order to solve the above-mentioned deficiency of prior art.
Above-mentioned purpose of the present utility model realizes by following technical scheme: a kind of electric power system of HDMI high-definition signal distributor; it is characterized in that: comprise casing and AC plug input circuit; being provided with AC in the described casing changes DC conversion electric power module converts circuit, overvoltage crowbar, power-supply system power supply circuits, HDMI input interface circuit, HDMI signal distribution amplification circuit and HDMI output interface circuit, and described AC changes DC conversion electric power module converts circuit and connects AC plug input circuit.
Described casing is provided with signal indicating circuit.
The utility model is built-in power, can reduce by an external power supply adapter, and have overvoltage crowbar, and level can not damaged because mains voltage variations is unusual after guaranteeing.
The utility model advantage compared with prior art is: the utility model is to adopt the built-in power supply power mode to give the power supply of HDMI high-definition signal distributor, as long as directly plug the alternating voltage plug of 110V-240V, this equipment gets final product operate as normal, the layout of simplified apparatus and installation; And include excess voltage protection, can avoid damaging distributor because of the alternating voltage instability.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
As shown in Figure 1; a kind of electric power system of HDMI high-definition signal distributor; it is characterized in that: comprise casing 1 and AC plug input circuit 2; be provided with AC in the described casing 1 and change DC conversion electric power module converts circuit 3, overvoltage crowbar 4, power-supply system power supply circuits 5, HDMI input interface circuit 6, HDMI signal distribution amplification circuit 7 and HDMI output interface circuit 8; described AC changes DC conversion electric power module converts circuit 3 and connects AC plug input circuit 2, and described casing 1 is provided with signal indicating circuit 9.
As shown in Figure 1; during use; the alternating voltage of 110V-240V arrives HDMI high-definition signal distributor casing 1 inside through AC plug input circuit 2; changeed the direct voltage of DC direct current conversion electric power module 3 output 5V by AC in inside; the direct voltage of 5V is through overvoltage crowbar 4; supply with and give the late-class circuit main frame; when AC commentaries on classics DC direct current conversion electric power module 3 occurs exceeding 6V unusually; overvoltage crowbar 4 begins to work; overvoltage crowbar 4 meeting automatic disconnections in this time; guarantee the no longer power supply of back level, thereby the circuit of protection back level can be damaged, improves security of products by overtension; stability and reliability.
Above-mentioned embodiment is exemplary, is to be the restriction that this patent is comprised scope in order better to make those skilled in the art can understand this patent, can not to be interpreted as; So long as according to spirit that this patent discloses do anyly be equal to change or modify, all fall into the scope that this patent comprises.
Claims (2)
1. the electric power system of a HDMI high-definition signal distributor; it is characterized in that: comprise casing and AC plug input circuit; being provided with AC in the described casing changes DC conversion electric power module converts circuit, overvoltage crowbar, power-supply system power supply circuits, HDMI input interface circuit, HDMI signal distribution amplification circuit and HDMI output interface circuit, and described AC changes DC conversion electric power module converts circuit and connects AC plug input circuit.
2. the electric power system of a kind of HDMI high-definition signal distributor according to claim 1, it is characterized in that: described casing is provided with signal indicating circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320065228 CN203193775U (en) | 2013-02-05 | 2013-02-05 | Power supply system for HDMI high definition signal distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320065228 CN203193775U (en) | 2013-02-05 | 2013-02-05 | Power supply system for HDMI high definition signal distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203193775U true CN203193775U (en) | 2013-09-11 |
Family
ID=49110599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320065228 Expired - Fee Related CN203193775U (en) | 2013-02-05 | 2013-02-05 | Power supply system for HDMI high definition signal distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203193775U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115866174A (en) * | 2022-12-08 | 2023-03-28 | 深圳创维数字技术有限公司 | HDMI guard plate circuit, HDMI guard plate and device |
-
2013
- 2013-02-05 CN CN 201320065228 patent/CN203193775U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115866174A (en) * | 2022-12-08 | 2023-03-28 | 深圳创维数字技术有限公司 | HDMI guard plate circuit, HDMI guard plate and device |
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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: 20130911 Termination date: 20140205 |