CN202798115U - Automatic switching control circuit of alternating current power supply and direct current battery backup power supply - Google Patents
Automatic switching control circuit of alternating current power supply and direct current battery backup power supply Download PDFInfo
- Publication number
- CN202798115U CN202798115U CN 201220298569 CN201220298569U CN202798115U CN 202798115 U CN202798115 U CN 202798115U CN 201220298569 CN201220298569 CN 201220298569 CN 201220298569 U CN201220298569 U CN 201220298569U CN 202798115 U CN202798115 U CN 202798115U
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- Prior art keywords
- power supply
- alternating current
- direct
- storage battery
- automatic switching
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- Expired - Fee Related
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Abstract
The utility model discloses an automatic switching control circuit of alternating current power supply and direct current battery backup power supply. The automatic switching control circuit comprises an alternating current power supply circuit and a direct current battery power supply circuit; the alternating current power supply circuit and the direct current battery power supply circuit are parallelly connected and then connected onto a direct current voltage output end; the alternating current power supply circuit comprises an alternating current power supply end; the alternating current power supply end is connected in series with an AC-DC power module; the direct current battery power supply circuit comprises a direct current battery power supply end; the direct current battery power supply end is connected in series with a diode group; and the diode group comprises a plurality of parallel diodes. According to the automatic switching control circuit of alternating current power supply and direct current battery backup power supply provided by the utility model, automatic switching between the alternating current power supply and the direct current battery backup power supply can be realized through the arranged diode group; and the automatic switching control circuit is simple in structure, low in cost and good in reliability and commonality.
Description
Technical field
The utility model belongs to the telecommunication equipment technical field, is specifically related to the automatic switching control circuit of a kind of Alternating Current Power Supply and direct-flow storage battery backup power supply.
Background technology
In the use of telecommunication equipment, the highly reliable power supply of equipment is absolutely necessary, and adopting Alternating Current Power Supply is that scheme main, that the direct-flow storage battery power supply backups is that telecommunication equipment is suitable for the major programme that relates to now.The drawback of the control switching circuit ubiquity circuit structure complexity of existing alternating current and direct-flow storage battery backup power supply not only is not easy to design, makes, and also increases cost, and versatility, reliability are not high yet simultaneously.
The utility model content
The purpose of this utility model is for above-mentioned the deficiencies in the prior art, the automatic switching control circuit of a kind of Alternating Current Power Supply and direct-flow storage battery backup power supply is provided, by simplifying circuit, when reducing the circuit manufacturing cost, increase reliability and the versatility of circuit.
For achieving the above object, the technical scheme that the utility model is taked is: the automatic switching control circuit of a kind of Alternating Current Power Supply and direct-flow storage battery backup power supply is provided, it is characterized in that: comprise ac power circuit and direct-flow storage battery power supply circuits; Access dc voltage output end after described ac power circuit and the parallel connection of direct-flow storage battery power supply circuits; Described ac power circuit comprises the Alternating Current Power Supply end; Described Alternating Current Power Supply end is connected with the AC-DC power module; Described direct-flow storage battery power supply circuits comprise the direct-flow storage battery feeder ear; Described direct-flow storage battery feeder ear is connected with the diode group; Described diode group is comprised of some diodes in parallels.
Preferred embodiment be: above-mentioned diode group is comprised of four diodes in parallels.
The automatic switching control circuit of the Alternating Current Power Supply that the utility model provides and direct-flow storage battery backup power supply can be realized the automatic switchover of Alternating Current Power Supply and direct-flow storage battery backup power supply by the diode group that arranges; This automatic switching control circuit is simple, cost is low, also has simultaneously good reliability and versatility.
Description of drawings
Fig. 1 is the automatic switching control circuit schematic diagram of Alternating Current Power Supply and direct-flow storage battery backup power supply.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.
The automatic switching control circuit of this Alternating Current Power Supply and direct-flow storage battery backup power supply comprises ac power circuit and direct-flow storage battery power supply circuits; Access dc voltage output end after ac power circuit and the parallel connection of direct-flow storage battery power supply circuits; Ac power circuit comprises the Alternating Current Power Supply end; The Alternating Current Power Supply end is connected with the AC-DC power module; The direct-flow storage battery power supply circuits comprise the direct-flow storage battery feeder ear; The direct-flow storage battery feeder ear is connected with the diode group; The diode group is comprised of some diodes in parallels.
Present embodiment take provide+the 24V direct voltage is as example, structure and the operation principle of the Alternating Current Power Supply that the utility model is provided and the automatic switching control circuit of direct-flow storage battery backup power supply are described in detail.
As shown in Figure 1, the automatic switching control circuit of this Alternating Current Power Supply and direct-flow storage battery backup power supply comprises ac power circuit and direct-flow storage battery power supply circuits; Accessing dc voltage output end after ac power circuit and the parallel connection of direct-flow storage battery power supply circuits connects; Ac power circuit comprises the Alternating Current Power Supply end; The Alternating Current Power Supply end is connected with the AC-DC power module; The direct-flow storage battery power supply circuits comprise the direct-flow storage battery feeder ear; The direct-flow storage battery feeder ear is connected with the diode group; The diode group is comprised of four diodes in parallels, and these four diodes are respectively D1, D2, D3, D4.
The operation principle of the automatic switching control circuit of this Alternating Current Power Supply and direct-flow storage battery backup power supply is: mainly be the one-way conduction characteristic of utilizing diode.When Alternating Current Power Supply is normal, AC-DC power module output+24V direct current, because the unidirectional characteristic of two pipes, the direct current output of AC-DC can not be added to+24V direct-flow storage battery one end.Behind diode D1, the D2 of+24V direct-flow storage battery by four parallel connections, D3, the D4, voltage is exported+the 24V direct current a little less than the AC-DC power module, therefore be prevented from, + 24V direct-flow storage battery can not be added to dc voltage output end by diode D1, D2, D3, the D4 of four parallel connections, storage battery is not worked, and has reached the purpose of power supply backup.When without Alternating Current Power Supply, the AC-DC power module do not have+output of 24V direct current, at this moment+be added to the switching that dc voltage output end has been finished backup battery behind diode D1, the D2 of 24V direct-flow storage battery by four parallel connections, D3, D4.Wherein, diode D1, D2, D3 and D4 are heavy-duty diode.
Need to prove at last, diode D1, D2, D3, the D4 of+24V direct-flow storage battery by four parallel connections be added to dc voltage output end the voltage ratio nominal+during the lower slightly 0.075V(full power operation of 24V), this in actual use on equipment work without any impact.In sum, the simple cost of this practical automatic switching control circuit that provides is low, also has simultaneously good reliability and versatility.
The utility model is not limited to above-described embodiment; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, the various distortion that can make without creative work or revise all in the protection range that claims of the present utility model limit.
Claims (2)
1. the automatic switching control circuit of an Alternating Current Power Supply and direct-flow storage battery backup power supply is characterized in that: comprise ac power circuit and direct-flow storage battery power supply circuits; Access dc voltage output end after described ac power circuit and the parallel connection of direct-flow storage battery power supply circuits; Described ac power circuit comprises the Alternating Current Power Supply end; Described Alternating Current Power Supply end is connected with the AC-DC power module; Described direct-flow storage battery power supply circuits comprise the direct-flow storage battery feeder ear; Described direct-flow storage battery feeder ear is connected with the diode group; Described diode group is comprised of some diodes in parallels.
2. Alternating Current Power Supply according to claim 1 and direct-flow storage battery back up the automatic switching control circuit of power supply, and it is characterized in that: described diode group is comprised of four diodes in parallels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220298569 CN202798115U (en) | 2012-06-25 | 2012-06-25 | Automatic switching control circuit of alternating current power supply and direct current battery backup power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220298569 CN202798115U (en) | 2012-06-25 | 2012-06-25 | Automatic switching control circuit of alternating current power supply and direct current battery backup power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202798115U true CN202798115U (en) | 2013-03-13 |
Family
ID=47825289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220298569 Expired - Fee Related CN202798115U (en) | 2012-06-25 | 2012-06-25 | Automatic switching control circuit of alternating current power supply and direct current battery backup power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202798115U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105391163A (en) * | 2015-12-15 | 2016-03-09 | 福建星海通信科技有限公司 | Alternating current/direct current power supply switching apparatus |
| CN109066829A (en) * | 2018-07-06 | 2018-12-21 | 许继电源有限公司 | A kind of battery group open-circuit fault recombination discharge system and battery |
| CN113525169A (en) * | 2020-04-20 | 2021-10-22 | 中车时代电动汽车股份有限公司 | Power control device, low-voltage power supply system and motor vehicle |
-
2012
- 2012-06-25 CN CN 201220298569 patent/CN202798115U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105391163A (en) * | 2015-12-15 | 2016-03-09 | 福建星海通信科技有限公司 | Alternating current/direct current power supply switching apparatus |
| CN105391163B (en) * | 2015-12-15 | 2018-09-25 | 福建星海通信科技有限公司 | A kind of power of alterating and direct current power switching device |
| CN109066829A (en) * | 2018-07-06 | 2018-12-21 | 许继电源有限公司 | A kind of battery group open-circuit fault recombination discharge system and battery |
| CN113525169A (en) * | 2020-04-20 | 2021-10-22 | 中车时代电动汽车股份有限公司 | Power control device, low-voltage power supply system and motor vehicle |
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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: 20130313 Termination date: 20200625 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |