CN203871900U - Electric energy automatic compensation device for USB electricity-receiving equipment - Google Patents
Electric energy automatic compensation device for USB electricity-receiving equipment Download PDFInfo
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- CN203871900U CN203871900U CN201420289348.2U CN201420289348U CN203871900U CN 203871900 U CN203871900 U CN 203871900U CN 201420289348 U CN201420289348 U CN 201420289348U CN 203871900 U CN203871900 U CN 203871900U
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Abstract
The utility model discloses an electric energy automatic compensation device for USB electricity-receiving equipment, and belongs to the field of connecting devices. The electric energy automatic compensation device particularly comprises a computer USB jack, a rear-end circuit and a USB interface. The electric energy automatic compensation device is characterized by also comprising a battery charging management module, a charging circuit, a battery discharge switch, a DC/DC voltage-boosting circuit and a USB insertion detection module. The computer USB jack, the USB interface, the battery charging management module, a rechargeable battery, the battery discharge switch, the DC/DC voltage-boosting circuit and the rear-end circuit are connected in turn. The USB interface, the USB insertion detection module and the battery discharge switch are connected in turn. Defects of high cost and inconvenient operation caused by requirement of an external AC/DC power supply for the power supply circuit of the USB interface of a router accessed to conventional 3G/4G uplink communication are solved, and the low-cost electric energy automatic compensation device for the USB electricity-receiving equipment is provided.
Description
Technical field
The utility model belongs to jockey field, is specifically related to a kind of automatic compensation of electric energy device of USB power receiving equipment.
Background technology
All kinds of family expenses in the market and the commercial router that adopts the access of 3G/4G uplink communication, its running current is 600～900mA left and right, in the processes such as start, dialing, moment needs larger electric current, more than generally at least needing 1200mA.
Current solution is an external AC/DC power supply, and this is not only inconvenient, and cost is high, is inconvenient to provide the place of extra AC power supplies interface especially at some, more inconvenient.
Utility model content
The technical problems to be solved in the utility model is the external AC/DC power supply of power supply circuits need for the USB interface of the router of current 3G/4G uplink communication access, cause high cost and unhandy shortcoming, a kind of automatic compensation of electric energy device of the power receiving equipment of USB is cheaply provided for this reason.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of automatic compensation of electric energy device of USB power receiving equipment, comprise computer USB socket, back-end circuit and USB interface, also comprise that battery charging management module, charging circuit, battery discharge switch, DC/DC booster circuit and USB insert detection module, computer USB socket, USB interface, battery charging management module, rechargeable battery, battery discharge switch, DC/DC booster circuit are connected successively with back-end circuit, and USB interface, USB insert detection module and be connected successively with battery discharge switch.
Adopt the automatic compensation of electric energy device of a kind of USB power receiving equipment of the utility model to there is following technique effect:
By rechargeable battery, realize back-end circuit required larger electric current of moment; By battery charging and discharging circuit, realize the Charge Management of rechargeable battery; By DC/DC booster circuit, realize cell voltage to the required voltage of back-end circuit; By USB, insert testing mechanism, realize the electric discharge management of battery.In the time need to promoting the power supply of USB interface, by battery charging management module, open battery discharge switch, by DC/DC potential circuit, increase the supply current of USB interface, for back-end circuit provides suitable electric current.The utility model does not have peripheral hardware AC/DC module, without the power interface that AC/DC module is additionally provided, avoids operation inconvenience, reduces cost.In addition, the average power consumption of this kind equipment is less than the overlap power supply current requirements of 2 USB port.By the electric power storage ability of battery, in power receiving equipment required larger power consumption of moment, provide enough electric currents, guarantee that DC/DC power circuit can give the required electric current of power receiving equipment and voltage request.
Further, described battery charging management module comprises voltage stabilizing chip, the first triode, the second triode, the 3rd triode, the first diode, the second diode and the first light-emitting diode, the input of voltage stabilizing chip is connected with USB interface, the output of voltage stabilizing chip is connected with the positive pole of the first light-emitting diode with the second resistance by the first resistance successively, the negative pole of the first light-emitting diode is connected with the collector electrode of the first triode, the output of voltage stabilizing chip is connected with the positive terminal of the second diode by the 3rd resistance, the negative pole end of the second diode is connected with rechargeable battery, the negative pole end of the first diode is connected with the positive terminal of the second diode, the negative pole end of the second diode is connected with the collector electrode of the second triode by the 5th resistance, the positive terminal of the first diode is connected with the base stage of the 3rd triode by the 6th resistance, the emitter of the first triode, the equal ground connection of emitter of the emitter of the second triode and the 3rd triode, the base stage of the base stage of the first triode and the second triode is all connected with USB interface, the 3rd collector electrode of triode and the output of rechargeable battery are connected.Voltage stabilizing chip is used for the voltage voltage stabilizing of being inputted by USB interface; If the base stage of the first triode and the second triode is low level, the first triode and the second triode all end, the electric current of voltage stabilizing chip output directly after the first resistance and the first diode with the stack input rechargeable battery of the electric current of the 3rd resistance, be charge in batteries; When the base stage of the first triode is high level, the first triode conducting, the 4th resistance is to flowing into the current distributing effect of the first diode, reduce the charging rate of rechargeable battery, when the base stage of the second triode is high level, further reduce the size of current that flows into the first diode, therefore again reduce the charging rate of rechargeable battery.Therefore, when the base stage of the first triode and the base stage of the second triode give high level, can open corresponding triode, thus the whole charge circuit of conducting.The Current Control function of application triode, realizes the control of electric current.Thereby realize the electric current output control of filling soon large electric current and the little electric current of trickle charge, to meet the charging curve requirement of different batteries.
Further, described USB inserts detection module and comprises the 11 diode, the 12 diode, the 13 diode, field effect transistor, the 11 electric capacity and breakdown diode, the positive terminal of the 11 diode is connected with USB interface, branch road of negative pole end of the 11 diode is connected with the gate terminal of field effect transistor by the 11 resistance, another branch road is connected with the positive terminal of the 12 diode, the negative pole end of the 12 diode is connected with the positive terminal of the 13 diode, the negative pole end of the 13 diode is connected with the negative pole end of rechargeable battery by the 13 resistance, the source electrode of field effect transistor is by the 14 grounding through resistance, the grid of field effect transistor is by the 11 capacity earth, the drain electrode of field effect transistor is connected with the negative pole end of breakdown diode, the drain electrode of field effect transistor is connected with the positive terminal of breakdown diode.When USB inserts, the grid voltage of field effect transistor is high level, from but field effect transistor conducting makes the negative pole end ground connection of rechargeable battery, thereby the charge circuit of conducting rechargeable battery, rechargeable battery can discharge to back-end circuit.Breakdown diode plays the protective effect to field effect transistor, when the both end voltage of being on the scene effect pipe is too high, and breakdown diode conducting, electric current flows directly into ground; The 11 electric capacity filters the noise signal in the electric current of the negative pole end output of the 11 diode.Therefore, when USB not when interventional instrument and equipment not when in use, guarantee that battery can not discharge.
Therefore, the beneficial effects of the utility model are:
1, moment exceed two PC (computer) USB port can supply current the equipment of ability, need access and use the power supply plan of two USB port of PC (computer).
2, adopt the mode of rechargeable battery, realize supplementing of energy/electric current; And when equipment is obsolete, can close the power supply circuits of battery.
3, by DC/DC change in voltage mode, for power receiving equipment provides required reliable and stable voltage, electric current.
Accompanying drawing explanation
Fig. 1 is the structure chart of embodiment of the automatic compensation of electric energy device of a kind of USB power receiving equipment of the utility model.
Fig. 2 is the circuit theory diagrams of the battery charging management module of Fig. 1.
Fig. 3 is the circuit theory diagrams that the USB of Fig. 1 inserts detection module.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
As shown in Figure 1, the automatic compensation of electric energy device of a kind of USB power receiving equipment of the utility model, specifically comprise: computer USB socket, back-end circuit and USB interface, also comprise that battery charging management module, charging circuit, battery discharge switch, DC/DC booster circuit and USB insert detection module, computer USB socket, USB interface, battery charging management module, rechargeable battery, battery discharge switch, DC/DC booster circuit are connected successively with back-end circuit, and USB interface, USB insert detection module and be connected successively with battery discharge switch.
In specific implementation process, by rechargeable battery, realize back-end circuit required larger electric current of moment; By battery charging and discharging circuit, realize the Charge Management of rechargeable battery; By DC/DC booster circuit, realize cell voltage to the required voltage of back-end circuit; By USB, insert testing mechanism, realize the electric discharge management of battery.In the time need to promoting the power supply of USB interface, by battery charging management module, open battery discharge switch, by DC/DC potential circuit, increase the supply current of USB interface, for back-end circuit provides suitable electric current.The utility model does not have peripheral hardware AC/DC module, without the power interface that AC/DC module is additionally provided, avoids operation inconvenience, reduces cost.In addition, the average power consumption of this kind equipment is less than the overlap power supply current requirements of 2 USB port.By the electric power storage ability of battery, in power receiving equipment required larger power consumption of moment, provide enough electric currents, guarantee that DC/DC power circuit can give the required electric current of power receiving equipment and voltage request.
Battery charging management module as shown in Figure 2 comprises voltage stabilizing chip IC 1, the first triode VT1, the second triode VT2, the 3rd triode VT3, the first diode VD1, the second diode VD2 and the first LED 1, the input of voltage stabilizing chip IC 1 is connected with USB interface, the output of voltage stabilizing chip IC 1 is connected with the positive pole of the first LED 1 with the second resistance R 2 by the first resistance R 1 successively, the negative pole of the first LED 1 is connected with the collector electrode of the first triode VT1, the output of voltage stabilizing chip IC 1 is connected with the positive terminal of the second diode VD2 by the 3rd resistance R 3, the negative pole end of the second diode VD2 is connected with rechargeable battery, the negative pole end of the first diode VD1 is connected with the positive terminal of the second diode VD2, the negative pole end of the second diode VD2 is connected with the collector electrode of the second triode VT2 by the 5th resistance R 5, the positive terminal of the first diode VD1 is connected with the base stage of the 3rd triode VT3 by the 6th resistance R 6, the emitter of the first triode VT1, the equal ground connection of emitter of the emitter of the second triode VT2 and the 3rd triode VT3, the base stage of the base stage of the first triode VT1 and the second triode VT2 is all connected with USB interface, the 3rd collector electrode of triode VT3 and the output of rechargeable battery are connected.Voltage stabilizing chip IC 1 is for the voltage voltage stabilizing to being inputted by USB interface; If the base stage of the first triode VT1 and the second triode VT2 is low level, the first triode VT1 and the second triode VT2 all end, the electric current of voltage stabilizing chip IC 1 output directly after the first resistance R 1 and the first diode VD1 with the stack input rechargeable battery of the electric current of the 3rd resistance R 3, be charge in batteries; When the base stage of the first triode VT1 is high level, the first triode VT1 conducting, the 4th 4 pairs of resistance R flow into the current distributing effect of the first diode VD1, reduce the charging rate of rechargeable battery, when the base stage of the second triode VT2 is high level, further reduce the size of current that flows into the first diode VD1, therefore again reduce the charging rate of rechargeable battery.Therefore, when the base stage of the first triode VT1 and the base stage of the second triode VT2 give high level, can open corresponding triode, thus the whole charge circuit of conducting.The Current Control function of application triode, realizes the control of electric current.Thereby realize the electric current output control of filling soon large electric current and the little electric current of trickle charge, to meet the charging curve requirement of different batteries.
USB as shown in Figure 3 inserts detection module and comprises the 11 diode VD11, the 12 diode VD12, the 13 diode VD13, field effect transistor Q1, the 11 capacitor C 11 and breakdown diode VD14, the positive terminal of the 11 diode VD11 is connected with USB interface, branch road of negative pole end of the 11 diode VD11 is connected with the gate terminal of field effect transistor Q1 by the 11 resistance R 11, another branch road is connected with the positive terminal of the 12 diode VD12, the negative pole end of the 12 diode VD12 is connected with the positive terminal of the 13 diode VD13, the negative pole end of the 13 diode VD13 is connected with the negative pole end of rechargeable battery by the 13 resistance R 13, the source electrode of field effect transistor Q1 is by the 14 resistance R 14 ground connection, the grid of field effect transistor Q1 is by the 11 capacitor C 11 ground connection, the drain electrode of field effect transistor Q1 is connected with the negative pole end of breakdown diode VD14, the drain electrode of field effect transistor Q1 is connected with the positive terminal of breakdown diode VD14.When USB inserts, the grid voltage of field effect transistor Q1 is high level, from but field effect transistor Q1 conducting makes the negative pole end ground connection of rechargeable battery, thereby the charge circuit of conducting rechargeable battery, rechargeable battery can discharge to back-end circuit.Breakdown diode VD14 plays the protective effect to field effect transistor Q1, when the both end voltage of being on the scene effect pipe Q1 is too high, and breakdown diode VD14 conducting, electric current flows directly into ground; The 11 capacitor C 11 is filtered the noise signal in the electric current of the negative pole end output of the 11 diode VD11.Therefore, when USB not when interventional instrument and equipment not when in use, guarantee that battery can not discharge.
Device is selected: the recharge-able battery that rechargeable battery is any characteristic, and as lithium battery.The model of DC/DC booster circuit is PAM2305AAB280 type.The model of voltage stabilizing chip IC 1 is LM317, and the first triode VT1, the second triode VT2 and the 3rd triode VT3 are 9014 types, and field effect transistor Q1 is IRFR120 type.
For a person skilled in the art; do not departing under the prerequisite of the utility model structure; can also make some distortion and improvement, these also should be considered as protection range of the present utility model, and these can not affect effect and practical applicability that the utility model is implemented.
Claims (3)
1. the automatic compensation of electric energy device of a USB power receiving equipment, comprise computer USB socket, back-end circuit and USB interface, it is characterized in that: also comprise that battery charging management module, charging circuit, battery discharge switch, DC/DC booster circuit and USB insert detection module, computer USB socket, USB interface, battery charging management module, rechargeable battery, battery discharge switch, DC/DC booster circuit are connected successively with back-end circuit, and USB interface, USB insert detection module and be connected successively with battery discharge switch.
2. the automatic compensation of electric energy device of a kind of USB power receiving equipment as claimed in claim 1, it is characterized in that: described battery charging management module comprises voltage stabilizing chip, the first triode, the second triode, the 3rd triode, the first diode, the second diode and the first light-emitting diode, the input of voltage stabilizing chip is connected with USB interface, the output of voltage stabilizing chip is connected with the positive pole of the first light-emitting diode with the second resistance by the first resistance successively, the negative pole of the first light-emitting diode is connected with the collector electrode of the first triode, the output of voltage stabilizing chip is connected with the positive terminal of the second diode by the 3rd resistance, the negative pole end of the second diode is connected with rechargeable battery, the negative pole end of the first diode is connected with the positive terminal of the second diode, the negative pole end of the second diode is connected with the collector electrode of the second triode by the 5th resistance, the positive terminal of the first diode is connected with the base stage of the 3rd triode by the 6th resistance, the emitter of the first triode, the equal ground connection of emitter of the emitter of the second triode and the 3rd triode, the base stage of the base stage of the first triode and the second triode is all connected with USB interface, the 3rd collector electrode of triode and the output of rechargeable battery are connected.
3. the automatic compensation of electric energy device of a kind of USB power receiving equipment as claimed in claim 1, it is characterized in that: described USB inserts detection module and comprises the 11 diode, the 12 diode, the 13 diode, field effect transistor, the 11 electric capacity and breakdown diode, the positive terminal of the 11 diode is connected with USB interface, branch road of negative pole end of the 11 diode is connected with the gate terminal of field effect transistor by the 11 resistance, another branch road is connected with the positive terminal of the 12 diode, the negative pole end of the 12 diode is connected with the positive terminal of the 13 diode, the negative pole end of the 13 diode is connected with the negative pole end of rechargeable battery by the 13 resistance, the source electrode of field effect transistor is by the 14 grounding through resistance, the grid of field effect transistor is by the 11 capacity earth, the drain electrode of field effect transistor is connected with the negative pole end of breakdown diode, the drain electrode of field effect transistor is connected with the positive terminal of breakdown diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420289348.2U CN203871900U (en) | 2014-05-30 | 2014-05-30 | Electric energy automatic compensation device for USB electricity-receiving equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420289348.2U CN203871900U (en) | 2014-05-30 | 2014-05-30 | Electric energy automatic compensation device for USB electricity-receiving equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203871900U true CN203871900U (en) | 2014-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420289348.2U Expired - Fee Related CN203871900U (en) | 2014-05-30 | 2014-05-30 | Electric energy automatic compensation device for USB electricity-receiving equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN203871900U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253398A (en) * | 2016-08-24 | 2016-12-21 | 深圳市冠旭电子股份有限公司 | A kind of circuit for detecting based on charging and charger |
-
2014
- 2014-05-30 CN CN201420289348.2U patent/CN203871900U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253398A (en) * | 2016-08-24 | 2016-12-21 | 深圳市冠旭电子股份有限公司 | A kind of circuit for detecting based on charging and charger |
| CN106253398B (en) * | 2016-08-24 | 2019-01-04 | 深圳市冠旭电子股份有限公司 | A kind of circuit for detecting and charger based on charging |
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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: 20141008 Termination date: 20180530 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |