CN202095157U - Control circuit of charging indicating light and cell phone with same - Google Patents

Control circuit of charging indicating light and cell phone with same Download PDF

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Publication number
CN202095157U
CN202095157U CN2011202245753U CN201120224575U CN202095157U CN 202095157 U CN202095157 U CN 202095157U CN 2011202245753 U CN2011202245753 U CN 2011202245753U CN 201120224575 U CN201120224575 U CN 201120224575U CN 202095157 U CN202095157 U CN 202095157U
Authority
CN
China
Prior art keywords
triode
charging
light
controlled switch
switch circuit
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
Application number
CN2011202245753U
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Chinese (zh)
Inventor
玉孔学
罗斌
邓金荣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CELLON COMMUNICATION TECHNOLOGY (SHENZHEN) CO LTD
Original Assignee
CELLON COMMUNICATION TECHNOLOGY (SHENZHEN) CO LTD
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CELLON COMMUNICATION TECHNOLOGY (SHENZHEN) CO LTD filed Critical CELLON COMMUNICATION TECHNOLOGY (SHENZHEN) CO LTD
Priority to CN2011202245753U priority Critical patent/CN202095157U/en
Application granted granted Critical
Publication of CN202095157U publication Critical patent/CN202095157U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

Provided are a control circuit of a charging indicating light and a cell phone with the same. The cell phone comprises a casing and the control circuit of the charging indicating light arranged on the casing. The control circuit of the charging indicating light comprises a light-emitting diode and a controlled switch circuit. A positive pole of the light-emitting diode is connected with a first charging end which obtains voltage because of battery charging, and a negative pole of the light-emitting diode is connected with a reference ground through the controlled switch circuit. The controlled switch circuit is connected with a control signal and controlled by a control signal to be connected or disconnected so that the light-emitting diode is connected or disconnected with the reference ground to be lighted or put out. The control circuit of the charging indicating light can indicate a whole charging process of the battery accurately and visually and is less in discrete components of the circuit, low in cost, good in effects and easy to control.

Description

The control circuit of charging indicator light and have the mobile phone of this control circuit
Technical field
The utility model relates to a kind of control circuit, relates in particular to the control circuit of charging indicator light.
The utility model also relates to a kind of mobile phone with charging indicator light control circuit.
Background technology
The state of indication mobile phone or other electronic products in the prior art (as digital camera etc.) charging normally is presented at charged state on the display screen with IC control, and the IC cost is too high, uneconomical practicality, also have in the prior art and adopt discrete component to control the indication charged state, but circuit complexity often, element is too much, and cost is too high, and control is complicated.In addition, show that by display screen need the user to pick up mobile phone checks, thus directly perceived inadequately, also convenient inadequately, and cross when low at cell voltage, can not accurately reflect charged state.
Summary of the invention
The technical problems to be solved in the utility model is to overcome the deficiency that above-mentioned prior art exists, a kind of control circuit of charging indicator light is provided and has the mobile phone of this control circuit, the charged state of accurate and visual ground of the control circuit energy pilot cell of this charging indicator light, and circuit structure is simple, cost is low, effective, control easily.
For solving the problems of the technologies described above, the utility model provides a kind of control circuit of charging indicator light, comprise: a light-emitting diode and a controlled switch circuit, the positive pole of described light-emitting diode connects first charging end that obtains voltage because of battery charge, the negative pole of described light-emitting diode connects with reference to ground by described controlled switch circuit, thereby described controlled switch circuit links to each other with a control signal and is subjected to the control of described control signal and conducting or shutoff are switched on or switched off and realize luminous or extinguish with making light-emitting diode and reference.
Further, described controlled switch circuit comprises: first triode of a NPN type and a sub-controlled switch circuit, the collector electrode of described first triode links to each other with the negative pole of described light-emitting diode, the emitter of described first triode connects with reference to ground by a resistance, the base stage of described first triode with reference to a divider resistance in parallel and a filter capacitor between the ground, and connecting described sub-controlled switch circuit by a current-limiting resistance, described sub-controlled switch circuit links to each other with described control signal and is subjected to described control signal control and makes described first triode conducting or the shutoff.
Further, described sub-controlled switch circuit comprises: second triode of a NPN type and second charging end that produces voltage because of battery charge, the collector electrode of described second triode is connected to the base stage of described first triode by described current-limiting resistance, and connect described second charging end by a resistance, the emitter of described second triode connects with reference to ground, the base stage of described second triode connects described control signal, and connects with reference to ground by a resistance.
For solving the problems of the technologies described above, the utility model also provides a kind of mobile phone with charging indicator light control circuit, comprises housing and the control circuit that is arranged on the above-mentioned charging indicator light of surface of shell.
Useful technique effect of the present utility model is: the control circuit of this charging indicator light can the whole charging process of accurate and visual ground pilot cell, and the circuit discrete component is few, and cost is low, and is effective, and control makes things convenient for the user to check charged state easily.
Description of drawings
Fig. 1 is the schematic diagram of the control circuit of the utility model charging indicator light.
Fig. 2 is that the control circuit of the utility model charging indicator light is applied in an exemplary plot on the mobile phone.
Fig. 3 is that the control circuit of the utility model charging indicator light is applied in another exemplary plot on the mobile phone.
Embodiment
Consult Fig. 1, the control circuit of the utility model charging indicator light comprises: a light-emitting diode D1 and a controlled switch circuit 100.The positive pole of light-emitting diode D1 connects the first charging end VBUS, the first charging end VBUS can obtain voltage because of battery charge, the negative pole of light-emitting diode D1 connects with reference to ground by controlled switch circuit 100, controlled switch circuit 100 links to each other with a control signal GP1, this control signal GP1 default value when battery begins to charge is a low level, and it is high level that charging finishes the back.Controlled switch circuit 100 is subjected to this control signal GP1 control and conducting or shutoff, thus make light-emitting diode D1 with reference to be switched on or switched off, and realize luminous or extinguish.
Controlled switch circuit 100 can adopt any available circuit that can realize its function, and specific to the utility model, controlled switch circuit 100 comprises: first a triode T4-1 of a NPN type and a sub-controlled switch circuit 10.The collector electrode C of the first triode T4-1 links to each other with the negative pole of light-emitting diode D1, the emitter E of the first triode T4-1 connects with reference to ground by a resistance R 5, the base stage B of the first triode T4-1 with reference to a divider resistance R4 in parallel and a filter capacitor C1 between the ground, and this base stage B is also by a current-limiting resistance R3 connexon controlled switch circuit 10, sub-controlled switch circuit 10 links to each other with control signal GP1, and suspension control signal GP1 control, make first triode T4-1 conducting or the shutoff, thereby make light-emitting diode D1 with reference to be switched on or switched off, and realize luminous or extinguish.
Sub-controlled switch circuit 10 also can adopt any available circuit that can realize its function, specific to the utility model, sub-controlled switch circuit 10 comprises: second triode T4-2 of a NPN type and one second charging end CHRIN, the second charging end CHRIN also can obtain voltage because of battery charge.The collector electrode C of the second triode T4-2 is connected to the base stage B of the first triode T4-1 by current-limiting resistance R3, and be connected to the second charging end CHRIN by a resistance R 1, the emitter E of the second triode T4-2 connects with reference to ground, the base stage B of the second triode T4-2 meets control signal GP1, and connects with reference to ground by a resistance R 2.
The operation principle of this circuit is as follows: during battery charge, the first charging end VBUS and the second charging end CHRIN obtain voltage because of charging, GP1 is a low level, the second triode T4-2 is in off state, voltage on the second charging end CHRIN is pressed on the resistance R 4 through resistance R 1, R3 branch, thereby make the first triode T4-1 base stage obtain conducting voltage, triode T4-1 conducting, light-emitting diode D1 connects by resistance R 5 and reference ground, and the first charging end VBUS also obtains voltage because of charging, thereby makes light-emitting diode D1 conducting and luminous.When battery charge finished, GP1 was a high level, the second triode T4-2 conducting, thus drag down the voltage of the first triode T4-1 base stage B, the first triode T4-1 is turn-offed, light-emitting diode D1 oppositely turn-offs and extinguishes.
Fig. 2, Fig. 3 are that the control circuit of the utility model charging indicator light is applied in the exemplary plot on the mobile phone, as shown in the figure, can be the light-emitting diode D1 among Fig. 1 with charging indicator light 20() be installed on the front housing 200 of mobile phone, also charging indicator light 20 can be installed on the side housing 200 of mobile phone.Charging indicator light 20 is just lighted with indication charging beginning when beginning to plug charger, and this indicator light 20 extinguished after charging was finished, and the user can make things convenient for and knows intuitively that mobile phone has charged and finish that products for further is handled.
The above only is a preferable possible embodiments of the present utility model, and unrestricted protection range of the present utility model, and the equivalent structure that all utilization the utility model specifications and accompanying drawing content have been done changes, and all is included in the protection range of the present utility model.

Claims (4)

1. the control circuit of a charging indicator light, it is characterized in that, comprise: a light-emitting diode and a controlled switch circuit, the positive pole of described light-emitting diode connects first charging end that obtains voltage because of battery charge, the negative pole of described light-emitting diode connects with reference to ground by described controlled switch circuit, thereby described controlled switch circuit links to each other with a control signal and is subjected to the control of described control signal and conducting or shutoff are switched on or switched off and realize luminous or extinguish with making light-emitting diode and reference.
2. the control circuit of charging indicator light as claimed in claim 1, it is characterized in that, described controlled switch circuit comprises: first triode of a NPN type and a sub-controlled switch circuit, the collector electrode of described first triode links to each other with the negative pole of described light-emitting diode, the emitter of described first triode connects with reference to ground by a resistance, the base stage of described first triode with reference to a divider resistance in parallel and a filter capacitor between the ground, and connecting described sub-controlled switch circuit by a current-limiting resistance, described sub-controlled switch circuit links to each other with described control signal and is subjected to described control signal control and makes described first triode conducting or the shutoff.
3. the control circuit of charging indicator light as claimed in claim 2, it is characterized in that, described sub-controlled switch circuit comprises: second triode of a NPN type and second charging end that produces voltage because of battery charge, the collector electrode of described second triode is connected to the base stage of described first triode by described current-limiting resistance, and connect described second charging end by a resistance, the emitter of described second triode connects with reference to ground, the base stage of described second triode connects described control signal, and connects with reference to ground by a resistance.
4. the mobile phone with charging indicator light control circuit comprises housing, it is characterized in that, also comprises the control circuit as any described charging indicator light among the claim 1-3 that is arranged on surface of shell.
CN2011202245753U 2011-06-29 2011-06-29 Control circuit of charging indicating light and cell phone with same Expired - Fee Related CN202095157U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011202245753U CN202095157U (en) 2011-06-29 2011-06-29 Control circuit of charging indicating light and cell phone with same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011202245753U CN202095157U (en) 2011-06-29 2011-06-29 Control circuit of charging indicating light and cell phone with same

Publications (1)

Publication Number Publication Date
CN202095157U true CN202095157U (en) 2011-12-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011202245753U Expired - Fee Related CN202095157U (en) 2011-06-29 2011-06-29 Control circuit of charging indicating light and cell phone with same

Country Status (1)

Country Link
CN (1) CN202095157U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105610817A (en) * 2015-12-25 2016-05-25 张萍 Communication reliable security vulnerability check system for network security
CN107968465A (en) * 2017-12-26 2018-04-27 上海展扬通信技术有限公司 The control circuit and terminal device of a kind of charging indicator light

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105610817A (en) * 2015-12-25 2016-05-25 张萍 Communication reliable security vulnerability check system for network security
CN107968465A (en) * 2017-12-26 2018-04-27 上海展扬通信技术有限公司 The control circuit and terminal device of a kind of charging indicator light

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20111228

Termination date: 20150629

EXPY Termination of patent right or utility model