CN2509796Y - Local telephone radio base station uninterrupted power source - Google Patents
Local telephone radio base station uninterrupted power source Download PDFInfo
- Publication number
- CN2509796Y CN2509796Y CN 01265629 CN01265629U CN2509796Y CN 2509796 Y CN2509796 Y CN 2509796Y CN 01265629 CN01265629 CN 01265629 CN 01265629 U CN01265629 U CN 01265629U CN 2509796 Y CN2509796 Y CN 2509796Y
- Authority
- CN
- China
- Prior art keywords
- power supply
- base station
- direct current
- local telephone
- wireless base
- 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
An uninterruptible power supply of a local telephone wireless base station belongs to a communication electric power unit, being suitable for power supply of PHS local telephone wireless base station particularly. The utility model comprises a casing, a switch constant voltage power supply installed inside the casing, a direct current transforming power supply and an accumulator. The utility model is characterized in that a direct current output end of the switch constant voltage power supply of the uninterruptible power supply, the direct current transforming power supply and the accumulator are in parallel connection. A direct current output end of the direct current transforming power supply outlets direct current of 270 V to 310 V and directly connected to an input end of the PHS local telephone wireless base station. The utility model has the advantage that the portion of transforming direct current into alternating current of the uninterruptible power supply conventionally used in the base station is abandoned, thereby the circuit is simplified greatly, the efficiency is increased and the costs is reduced.
Description
Technical field: the utility model relates to the communication power supply device, is specially adapted to the power supply of PHS local telephone network wireless base station.
Prior art: the uninterrupted power supply of PHS local telephone network wireless base station is the input AC electricity at present, and output also is alternating current, and the base station input also is an alternating current.This uninterrupted power supply is that the inverter that exchanges is formed by switching power supply, storage battery with dc inversion, the switch voltage-stabilizing circuit dc output end is in parallel with inverter, storage battery three, the alternating current of inverter output is then supplied with the base station, out-put supply is the alternating current of 220V 50HZ, and the inside of base station circuit becomes interchange into direct current by rectification again to be used for inside of base station.There is straight, the straight repetitive process that becomes the positive and negative conversion of handing over of alternation in function mode like this, causes complex circuit, the defective of inefficiency, poor reliability.
Summary of the invention: the purpose of this utility model is to overcome the base station uninterrupted power supply that above-mentioned defective provides a kind of one way AC-DC.Scheme of the present utility model is: the dc output end of the switching power supply of uninterrupted power supply and dc transformating power, storage battery three are in parallel, the direct current of the dc output end output 270V to 310V of dc transformating power, directly be connected, as the supply power of base station with the input of wireless base station.Advantage of the present utility model is: originally straight the change handed over and will earlier direct current be become high voltage direct current, become square wave or sinusoidal wave interchange output by high voltage direct current conversion again, this part conversion process complexity and electric elements are many and heavy, reject the straight change of uninterrupted power supply hand over part, circuit is greatly simplified, and efficient improves.
Accompanying drawing 1 is the uninterrupted power supply circuit block diagram.
Accompanying drawing 2 is the dc transformating power circuit diagram.
Embodiment: local telephone network wireless base station uninterrupted power supply is made up of the switching power supply in casing and the casing, dc transformating power, storage battery three parts.Dc transformating power is made up of signal generator, controller, power switch circuit, high frequency transformer, rectification circuit, voltage stabilizing circuit, protective circuit, and its function is the direct current that the low-voltage direct of storage battery is transformed into the suitable 270V to 310V in base station.
Operation of the present utility model is: civil power is inserted the uninterrupted power supply input, again by the direct access base station of uninterrupted power supply output.When civil power just often, the alternating current of civil power enters the switching power supply of uninterrupted power supply, switching power supply is transformed into low-voltage direct with the alternating current of 220V, power to dc transformating power when switching power supply carries out floating charge to storage battery, by dc transformating power low-voltage direct is become high voltage direct current and supply with the base station use.When civil power interrupted for some reason, storage source entered discharge condition by floating charge state and powers to dc transformating power, and dc transformating power is powered to the base station again, when guaranteeing that civil power interrupts, and the normal operation of base station.Because the external tapping of base station is a bridge rectifier, suitable alternating current also is applicable to direct current, therefore adopts this uninterrupted power supply, and the base station circuitry interface needn't be done any change.
Claims (3)
1, local telephone network wireless base station uninterrupted power supply, comprise casing, switching power supply, storage battery, dc output end and the dc transformating power, the storage battery three that it is characterized in that the switching power supply of uninterrupted power supply are in parallel, the direct current of the dc output end output 270V to 0310V of dc transformating power directly is connected with the input of wireless base station.
2, local telephone network according to claim 1 wireless base station uninterrupted power supply is characterized in that dc transformating power is made up of signal generator, controller, power switch circuit, high frequency transformer, rectification circuit, voltage stabilizing circuit, protective circuit.
3, local telephone network according to claim 1 wireless base station uninterrupted power supply is characterized in that being interrupted power output end and directly is connected with the input of PHS local telephone network wireless base station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01265629 CN2509796Y (en) | 2001-09-25 | 2001-09-25 | Local telephone radio base station uninterrupted power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01265629 CN2509796Y (en) | 2001-09-25 | 2001-09-25 | Local telephone radio base station uninterrupted power source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2509796Y true CN2509796Y (en) | 2002-09-04 |
Family
ID=33672451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01265629 Expired - Fee Related CN2509796Y (en) | 2001-09-25 | 2001-09-25 | Local telephone radio base station uninterrupted power source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2509796Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103167204A (en) * | 2011-12-13 | 2013-06-19 | 洛阳天枢光电技术有限公司 | Long-distance power supply system |
-
2001
- 2001-09-25 CN CN 01265629 patent/CN2509796Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103167204A (en) * | 2011-12-13 | 2013-06-19 | 洛阳天枢光电技术有限公司 | Long-distance power supply system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |