CN203406790U - Switching power supply for fiber-to-home box - Google Patents
Switching power supply for fiber-to-home box Download PDFInfo
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- CN203406790U CN203406790U CN201320531043.3U CN201320531043U CN203406790U CN 203406790 U CN203406790 U CN 203406790U CN 201320531043 U CN201320531043 U CN 201320531043U CN 203406790 U CN203406790 U CN 203406790U
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Abstract
The utility model discloses a switching power supply for a fiber-to-home box. The switching power supply comprises a rectification filter circuit connected with a mains supply, and a voltage stabilization output circuit. The rectification filter circuit is provided with a rectification filtering input terminal and a rectification filtering output terminal, and the rectification filtering input terminal is electrically connected with the mains supply. The voltage stabilization output circuit is provided with a voltage stabilization input terminal and a voltage stabilization output terminal, and the rectification filtering output terminal is electrically connected with the voltage stabilization input terminal. The voltage stabilization output terminal comprises a first output port and a second output port. The switching power supply for the fiber-to-home box is of simple structure, small size, stable output voltage and high anti-interference capability, is not prone to failure, and is provided with the two output ports, so that the switching power supply can simultaneously supply power for two devices, and the design of the fiber-to-home box is greatly simplified.
Description
Technical field
The utility model relates to a kind of power supply, and more particularly, it relates to the Switching Power Supply that a kind of fiber entering household case is used.
Background technology
Fiber entering household case is to be usually used in Smart Home wiring, and family lan, in the engineering projects such as household electrical appliances intellectuality.Fiber entering household is realized Internet broadband access, telecommunications, cable tv broadcast (CATV) access and IP phone unification of three nets on Access Network, can replace the CM access way of HFC completely; Superelevation bandwidth is 100 times of ADSL; Phone: IP phone and plain old telephone are optional; CATV and Digital Television and high definition television are completely compatible.
Fiber entering household case internal structure in the market is roughly divided into 3 regions, functional circuit district, 220V power supply access area, fibre-optic terminus district; The inside, functional circuit district is provided with a Switching Power Supply, can power to the router of inside, fibre-optic terminus district like this, but the output of the existing Switching Power Supply for fiber entering household case just only has one, so just define a fiber entering household case the inside and place only at the most a router, make the scope of application of fiber entering household case little, cause serious waste of resources.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of Switching Power Supply that can simultaneously use a kind of fiber entering household case of two device power supplies.
For achieving the above object, the utility model provides following technical scheme: the Switching Power Supply that a kind of fiber entering household case is used, comprise current rectifying and wave filtering circuit and voltage-stabilizing output circuit for being electrically connected to city, described current rectifying and wave filtering circuit is provided with rectifying and wave-filtering input and rectifying and wave-filtering output, described rectifying and wave-filtering input is electrically connected to civil power, described voltage-stabilizing output circuit is provided with voltage stabilizing input and output end of pressure-stabilizing, described rectifying and wave-filtering output is electrically connected to voltage stabilizing input, and described output end of pressure-stabilizing comprises the first output port and the second output port.
By adopting technique scheme, be provided with two output ports, can be simultaneously to two device power supplies, the easy greatly design of fiber entering household case, because rectifying and wave-filtering input is electrically connected to civil power, so when access civil power, current rectifying and wave filtering circuit inside just has alternating current to pass through, at this moment just can to the civil power entering wherein, carry out a rectifying and wave-filtering by current rectifying and wave filtering circuit, through after rectifying and wave-filtering, just can obtain a comparatively level and smooth DC power supply, this direct current enters voltage-stabilizing output circuit by voltage stabilizing input more afterwards, in the continuous sampling rate of process voltage-stabilizing output circuit, then regulate, last just can obtain at the first output port and the second output port the power supply of a voltage stabilizing.
Described voltage-stabilizing output circuit comprises main output unit and auxiliary unit, main output unit and auxiliary unit coupling, and main output unit is electrically connected to the first output port and the second output port.
By adopting technique scheme, main output unit carries out a Voltage-output to the first output port and the second output port, and auxiliary unit can be carried out a sampling and compare the output voltage of main output unit, and then the output voltage of main output unit is controlled.
Described current rectifying and wave filtering circuit comprises electric capacity, semifixed resistor, fuse, several diodes, electrochemical capacitor.
By adopting technique scheme, when civil power enters current rectifying and wave filtering circuit, first by semifixed resistor, divide to fall civil power one point voltage, before fuse is connected on current rectifying and wave filtering circuit, when circuit breaks down, just can effectively protect whole current rectifying and wave filtering circuit like this, then civil power is by electric capacity and several diodes, because the characteristic of diode, so can carry out rectification to civil power, becomes a DC power supply; DC power supply is again by electrochemical capacitor afterwards, and electrochemical capacitor carries out a filter action to DC power supply again, finally just can obtain a comparatively level and smooth DC power supply.
Described voltage-stabilizing output circuit comprises transformer, light coupling relay, thyristor, several inductance coils, several diodes, several resistance, several electric capacity.
By adopting technique scheme, when the direct current from current rectifying and wave filtering circuit output enters voltage-stabilizing output circuit, by the effect that transformer, resistance, diode and electric capacity are mutual, this direct current is carried out to step-down, by diode and electric capacity, direct current is sampled again, after the voltage that sampling obtains is processed by resistance, inductance and thyristor, to light coupling relay generation effect, then by light coupling relay, the output voltage of the first output and the second output is controlled, reached the effect of a voltage stabilizing.
Accompanying drawing explanation
Fig. 1 is the module map of the Switching Power Supply used of a kind of fiber entering household case of the utility model;
Fig. 2 is the circuit diagram of the voltage-stabilizing output circuit of the Switching Power Supply used of a kind of fiber entering household case of the utility model;
Fig. 3 is the circuit diagram of the current rectifying and wave filtering circuit of the Switching Power Supply used of a kind of fiber entering household case of the utility model;
Fig. 4 is the vertical view of the Switching Power Supply used of a kind of fiber entering household case of the utility model.
In figure: R, resistance; C, electric capacity; RS, semifixed resistor; D, diode; C*, electrochemical capacitor; F, fuse; T, transformer; L, inductance; U, light coupling relay; DX, thyristor; 1, current rectifying and wave filtering circuit; 2, voltage-stabilizing output circuit; 3, the first output port; 4, the second output port; 5, civil power; 6, main output unit; 7, auxiliary unit.
Embodiment
The Switching Power Supply of a kind of fiber entering household case of the utility model being used referring to figs. 1 through Fig. 4 is described further.
The Switching Power Supply that a kind of fiber entering household case is used, comprise current rectifying and wave filtering circuit 1 and voltage-stabilizing output circuit 2 for being electrically connected to city, described current rectifying and wave filtering circuit 1 is provided with rectifying and wave-filtering input and rectifying and wave-filtering output, described rectifying and wave-filtering input is electrically connected to civil power, described voltage-stabilizing output circuit 2 is provided with voltage stabilizing input and output end of pressure-stabilizing, described rectifying and wave-filtering output is electrically connected to voltage stabilizing input, and described output end of pressure-stabilizing comprises the first output port 3 and the second output port 4.
By adopting technique scheme, be provided with two output ports, can be simultaneously to two device power supplies, the easy greatly design of fiber entering household case, because rectifying and wave-filtering input is electrically connected to civil power 5, so when access civil power 5, current rectifying and wave filtering circuit 1 inside just has alternating current to pass through, the civil power that at this moment just can enter wherein by 1 pair of current rectifying and wave filtering circuit carries out a rectifying and wave-filtering, through after rectifying and wave-filtering, just can obtain a comparatively level and smooth DC power supply, this direct current enters voltage-stabilizing output circuit 2 by voltage stabilizing input more afterwards, in the continuous sampling rate of process voltage-stabilizing output circuit 2, then regulate, last just can obtain at the first output port 3 and the second output port 4 power supply of a voltage stabilizing.
Described voltage-stabilizing output circuit 2 comprises main output unit 6 and auxiliary unit 7, main output unit 6 and auxiliary unit 7 couplings, and main output unit 6 is electrically connected to the first output port 3 and the second output port 4.
By adopting technique scheme, 6 pairs of the first output ports 3 of main output unit and the second output port 4 carry out a Voltage-output, and auxiliary unit 7 can be carried out a sampling and compare the output voltage of main output unit 6, and then the output voltage of main output unit 6 is controlled.
Described current rectifying and wave filtering circuit 1 comprises capacitor C, semifixed resistor RS, fuse F, several diodes D, electrochemical capacitor R*.
By adopting technique scheme, when civil power 5 enters current rectifying and wave filtering circuit 1, first by semifixed resistor RS, divide to fall civil power 5 one point voltages, before fuse F is connected on current rectifying and wave filtering circuit 1, when circuit breaks down, just can effectively protect whole current rectifying and wave filtering circuit 1 like this, then civil power 5 is by capacitor C and several diodes D, because the characteristic of diode D, so can carry out rectification to civil power 5, becomes a DC power supply; DC power supply is again by electrochemical capacitor R* afterwards, and electrochemical capacitor R* carries out a filter action to DC power supply again, finally just can obtain a comparatively level and smooth DC power supply.
Described voltage-stabilizing output circuit 2 comprises transformer T, light coupling relay U, thyristor DX, several resistance R, several capacitor C, several inductance coils L, several diodes D.
By adopting technique scheme, when the direct current from current rectifying and wave filtering circuit 1 output enters voltage-stabilizing output circuit 2, by the effect that transformer T, resistance R, diode D and capacitor C are mutual, this direct current is carried out to step-down, by diode D and capacitor C, direct current is sampled again, after the voltage that sampling obtains is processed by resistance R, inductance L and thyristor DX, to light coupling relay U generation effect, then by light coupling relay U, the output voltage of the first output port 3 and the second output port 4 is controlled, reached the effect of a voltage stabilizing.
The above is only preferred implementation of the present utility model, and protection range of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (4)
1. the Switching Power Supply that fiber entering household case is used, comprise current rectifying and wave filtering circuit and voltage-stabilizing output circuit for being electrically connected to city, it is characterized in that: described current rectifying and wave filtering circuit is provided with rectifying and wave-filtering input and rectifying and wave-filtering output, described rectifying and wave-filtering input is electrically connected to civil power, described voltage-stabilizing output circuit is provided with voltage stabilizing input and output end of pressure-stabilizing, described rectifying and wave-filtering output is electrically connected to voltage stabilizing input, and described output end of pressure-stabilizing comprises the first output port and the second output port.
2. the Switching Power Supply that a kind of fiber entering household case according to claim 1 is used, it is characterized in that: described voltage-stabilizing output circuit comprises main output unit and auxiliary unit, main output unit and auxiliary unit coupling, main output unit is electrically connected to the first output port and the second output port.
3. the Switching Power Supply that a kind of fiber entering household case according to claim 2 is used, is characterized in that: described current rectifying and wave filtering circuit comprises electric capacity, semifixed resistor, fuse, several diodes, electrochemical capacitor.
4. the Switching Power Supply that a kind of fiber entering household case according to claim 3 is used, is characterized in that: described voltage-stabilizing output circuit comprises transformer, light coupling relay, thyristor, several inductance coils, several diodes, several resistance, several electric capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320531043.3U CN203406790U (en) | 2013-08-28 | 2013-08-28 | Switching power supply for fiber-to-home box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320531043.3U CN203406790U (en) | 2013-08-28 | 2013-08-28 | Switching power supply for fiber-to-home box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203406790U true CN203406790U (en) | 2014-01-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320531043.3U Expired - Fee Related CN203406790U (en) | 2013-08-28 | 2013-08-28 | Switching power supply for fiber-to-home box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203406790U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111697791A (en) * | 2020-06-22 | 2020-09-22 | 上海大因多媒体技术有限公司 | Centralized power supply device |
-
2013
- 2013-08-28 CN CN201320531043.3U patent/CN203406790U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111697791A (en) * | 2020-06-22 | 2020-09-22 | 上海大因多媒体技术有限公司 | Centralized power supply device |
| CN111697791B (en) * | 2020-06-22 | 2022-02-15 | 上海大因多媒体技术有限公司 | Centralized power supply 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: 20140122 Termination date: 20160828 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |