CN204947711U - A kind of Electronic platform double power supply circuit - Google Patents
A kind of Electronic platform double power supply circuit Download PDFInfo
- Publication number
- CN204947711U CN204947711U CN201520668830.1U CN201520668830U CN204947711U CN 204947711 U CN204947711 U CN 204947711U CN 201520668830 U CN201520668830 U CN 201520668830U CN 204947711 U CN204947711 U CN 204947711U
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- electric capacity
- rectifier bridge
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- power supply
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a kind of Electronic platform double power supply circuit, comprise rectifier bridge T1, chip IC 1, diode D1 and electric capacity C5, one end contact resistance R4 of described electric capacity C5 and 220V alternating current, the other end of other end contact resistance R4 of electric capacity C5 and the port one of rectifier bridge T1, the port 3 of rectifier bridge T1 connects 220V alternating current.The utility model Electronic platform double power supply circuit adds emergency power supply on the basis of general distribution circuit, and emergency power supply has trickle charge and quick charge two kinds of modes, simultaneously also be provided with city's electro-mechanical wave suppression element in circuit, therefore there is the advantage that stable performance, structure are simple and easy to use.
Description
Technical field
The utility model relates to a kind of power supply, specifically a kind of Electronic platform double power supply circuit.
Background technology
Along with the progress in epoch and the development of science and technology, with no paper teaching gradually universal and promoting, the development of multimedia education equipment and rapidly, Electronic platform receives the favorable comment of numerous educators as with no paper staple product of educating, its integrated multiple teaching equipment is in one, can provide convenience and realize various instructional function efficiently, and effectively can also carry out remote information interchange and the storage of jumbo data of student and teacher, what avoid in conventional teaching is uninteresting and stiff, make the learning content of student more colorful, Electronic platform is as a kind of electronic device, relatively strict to the requirement of power supply, once in use occur that power-off or power-supply fluctuation may cause inside chip to burn or the serious consequence of loss of data, loss is brought to tutoring system.
Utility model content
The purpose of this utility model is to provide a kind of Electronic platform double power supply circuit, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of Electronic platform double power supply circuit, comprises rectifier bridge T1, chip IC 1, diode D1 and electric capacity C5, one end contact resistance R4 of described electric capacity C5 and 220V alternating current, the other end of other end contact resistance R4 of electric capacity C5 and the port one of rectifier bridge T1, the port 3 of rectifier bridge T1 connects 220V alternating current, the port 2 contact resistance R1 of rectifier bridge T1, resistance R2, switch S 1, transient voltage suppressor diode DW, the negative electrode of diode D1, electric capacity C1, the winding N1 of transformer W, the pin 4 of chip IC 1 and the port 8 of rectifier bridge T1, the other end of resistance R1 connects the anode of diode D1, the other end of switch S 1 and the positive pole of storage battery E, the negative pole of storage battery E connects the other end being electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, the other end of transient voltage suppressor diode DW, the port 4 of rectifier bridge T1, the emitter of triode V1, the port 4 of rectifier bridge T2, the pin 1 of Electronic platform H and chip IC 1, the other end contact resistance R3 of resistance R2 and the pin 7 of chip IC 1, the other end of resistance R3 connects the other end of electric capacity C2, the pin 2 of chip IC 1 and the pin 6 of chip IC 1, the base stage of the pin 3 connecting triode V1 of chip IC 1, the other end of the winding N1 of the collector electrode connection transformer W of triode V1, the two ends of the winding N2 of transformer W connect the port one of rectifier bridge T2 and the port 3 of rectifier bridge T2 respectively, the port 2 of rectifier bridge T2 connects the other end of electric capacity C4 and the other end of Electronic platform H, and the model of described chip IC 1 is NE555.
As the utility model further scheme: the model of described transient voltage suppressor diode DW is SMCJ7.0A.
Compared with prior art, the beneficial effects of the utility model are: the utility model Electronic platform double power supply circuit circuit adds emergency power supply on the basis of general distribution circuit, and emergency power supply has trickle charge and quick charge two kinds of modes, simultaneously also be provided with city's electro-mechanical wave suppression element in circuit, therefore there is the advantage that stable performance, structure are simple and easy to use.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of Electronic platform double power supply circuit.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, a kind of Electronic platform double power supply circuit, comprises rectifier bridge T1, chip IC 1, diode D1 and electric capacity C5, one end contact resistance R4 of described electric capacity C5 and 220V alternating current, the other end of other end contact resistance R4 of electric capacity C5 and the port one of rectifier bridge T1, the port 3 of rectifier bridge T1 connects 220V alternating current, the port 2 contact resistance R1 of rectifier bridge T1, resistance R2, switch S 1, transient voltage suppressor diode DW, the negative electrode of diode D1, electric capacity C1, the winding N1 of transformer W, the pin 4 of chip IC 1 and the port 8 of rectifier bridge T1, the other end of resistance R1 connects the anode of diode D1, the other end of switch S 1 and the positive pole of storage battery E, the negative pole of storage battery E connects the other end being electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, the other end of transient voltage suppressor diode DW, the port 4 of rectifier bridge T1, the emitter of triode V1, the port 4 of rectifier bridge T2, the pin 1 of Electronic platform H and chip IC 1, the other end contact resistance R3 of resistance R2 and the pin 7 of chip IC 1, the other end of resistance R3 connects the other end of electric capacity C2, the pin 2 of chip IC 1 and the pin 6 of chip IC 1, the base stage of the pin 3 connecting triode V1 of chip IC 1, the other end of the winding N1 of the collector electrode connection transformer W of triode V1, the two ends of the winding N2 of transformer W connect the port one of rectifier bridge T2 and the port 3 of rectifier bridge T2 respectively, the port 2 of rectifier bridge T2 connects the other end of electric capacity C4 and the other end of Electronic platform H, and the model of described chip IC 1 is NE555.
The model of transient voltage suppressor diode DW is SMCJ7.0A.
Operation principle of the present utility model is: form astable multivibrator by time-base circuit IC1, resistance R2, resistance R3, electric capacity C3 etc., frequency of oscillation is about 15kHz.The resistance of the resistance R2 in circuit is less than the resistance of resistance R3, and vibration exports close to symmetrical square wave, promotes triode V1 conducting.The voltage that the winding N2 of transformer W exports after rectifier bridge T2 rectification, by C4 filtering output dc voltage, as the power supply of Electronic platform.
When line voltage normal power supply, the alternating voltage that 220V line voltage exports after resistance R4 step-down provides the direct current being about 12V after rectifier bridge T1 rectification and electric capacity C1 filtering.This voltage adds to the consumption of charging with the self-discharge loss of supplementary battery pack and the interim power-off of ac power circuit to storage battery E with the weak current of 1 ~ 2mA at storage battery E two ends through R1.When alternating current circuit has a power failure, circuit power is provided through diode VD5 by batteries.
When line voltage disconnects, storage battery E substitutes civil power automatically to circuit supply, when needs charge to storage battery E, can strengthen charging current, make storage battery E enter quick-charge state by Closing Switch S1.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
Claims (2)
1. an Electronic platform double power supply circuit, comprises rectifier bridge T1, chip IC 1, diode D1 and electric capacity C5, it is characterized in that, one end contact resistance R4 of described electric capacity C5 and 220V alternating current, the other end of other end contact resistance R4 of electric capacity C5 and the port one of rectifier bridge T1, the port 3 of rectifier bridge T1 connects 220V alternating current, the port 2 contact resistance R1 of rectifier bridge T1, resistance R2, switch S 1, transient voltage suppressor diode DW, the negative electrode of diode D1, electric capacity C1, the winding N1 of transformer W, the pin 4 of chip IC 1 and the port 8 of rectifier bridge T1, the other end of resistance R1 connects the anode of diode D1, the other end of switch S 1 and the positive pole of storage battery E, the negative pole of storage battery E connects the other end being electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, the other end of transient voltage suppressor diode DW, the port 4 of rectifier bridge T1, the emitter of triode V1, the port 4 of rectifier bridge T2, the pin 1 of Electronic platform H and chip IC 1, the other end contact resistance R3 of resistance R2 and the pin 7 of chip IC 1, the other end of resistance R3 connects the other end of electric capacity C2, the pin 2 of chip IC 1 and the pin 6 of chip IC 1, the base stage of the pin 3 connecting triode V1 of chip IC 1, the other end of the winding N1 of the collector electrode connection transformer W of triode V1, the two ends of the winding N2 of transformer W connect the port one of rectifier bridge T2 and the port 3 of rectifier bridge T2 respectively, the port 2 of rectifier bridge T2 connects the other end of electric capacity C4 and the other end of Electronic platform H, and the model of described chip IC 1 is NE555.
2. a kind of Electronic platform double power supply circuit according to claim 1, is characterized in that, the model of described transient voltage suppressor diode DW is SMCJ7.0A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520668830.1U CN204947711U (en) | 2015-08-31 | 2015-08-31 | A kind of Electronic platform double power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520668830.1U CN204947711U (en) | 2015-08-31 | 2015-08-31 | A kind of Electronic platform double power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204947711U true CN204947711U (en) | 2016-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520668830.1U Expired - Fee Related CN204947711U (en) | 2015-08-31 | 2015-08-31 | A kind of Electronic platform double power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204947711U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106583006A (en) * | 2016-11-30 | 2017-04-26 | 陈东标 | Intelligent picking device for chemical materials |
| CN106735466A (en) * | 2016-11-24 | 2017-05-31 | 江苏雨燕模塑有限公司 | A kind of plane Milling Machining equipment for automobile die |
| CN106981160A (en) * | 2017-05-16 | 2017-07-25 | 长沙金定信息技术有限公司 | A kind of anti-theft monitoring system based on image capture and processing |
-
2015
- 2015-08-31 CN CN201520668830.1U patent/CN204947711U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735466A (en) * | 2016-11-24 | 2017-05-31 | 江苏雨燕模塑有限公司 | A kind of plane Milling Machining equipment for automobile die |
| CN106583006A (en) * | 2016-11-30 | 2017-04-26 | 陈东标 | Intelligent picking device for chemical materials |
| CN106981160A (en) * | 2017-05-16 | 2017-07-25 | 长沙金定信息技术有限公司 | A kind of anti-theft monitoring system based on image capture and processing |
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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: 20160106 Termination date: 20160831 |
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| CF01 | Termination of patent right due to non-payment of annual fee |