CN201839325U - Mobile phone indicating circuit - Google Patents
Mobile phone indicating circuit Download PDFInfo
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- CN201839325U CN201839325U CN2010202872971U CN201020287297U CN201839325U CN 201839325 U CN201839325 U CN 201839325U CN 2010202872971 U CN2010202872971 U CN 2010202872971U CN 201020287297 U CN201020287297 U CN 201020287297U CN 201839325 U CN201839325 U CN 201839325U
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- mobile phone
- utmost point
- effect transistor
- field effect
- diode
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Abstract
The utility model relates to the field of mobile communication terminals and discloses a mobile phone indicating circuit which comprises a light-emitting indicating element. The first end of the light-emitting indicating element is connected with a charging end of a mobile phone, and the second end is connected with reference ground by a first field-effect tube; and the D pole of the first field-effect tube is connected with the light-emitting indicating element, the S pole is connected with the reference ground, and the G pole is connected with a control end which is used for transmitting missed call and unread short message pulse width modulation signals by a second field-effect tube. By adopting the mobile phone indicating circuit, simple discrete components can be utilized for realizing two functions, namely, precharging indication and breathing lamp indication in one circuit, and the structure of the circuit is simple, so that the cost is reduced.
Description
Technical field
The utility model relates to the mobile communication terminal field, in particular a kind of mobile phone indicating circuit.
Background technology
Breath light, as its name suggests, light is finished under microcomputerized control by bright to dark gradually changing, and perceptual image is to breathe.Extensively be used to every field such as digital product, computer, sound equipment, automobile, play good visual decorative effect.
Mobile phone of the prior art will be realized precharge indication and breath light indication, need realize with IC usually, causes the circuit complexity like this, realizes the cost height.And when the battery deep discharge, can not trigger mobile phone power-on after plugging charger, can't indicate mobile phone to be in pre-charge state.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
The technical problems to be solved in the utility model is, at the above-mentioned defective of prior art, a kind of mobile phone indicating circuit is provided, it utilizes simple discrete component to realize that in same circuit precharge indication and breath light indicate this two functions, and circuit structure is simple, has reduced cost.
The technical scheme that the utility model technical solution problem is adopted is as follows:
A kind of mobile phone indicating circuit comprises a luminous indicator elment, and wherein, first end of described luminous indicator elment is connected to the cell-phone charging end, and its second end connects with reference to ground by first field effect transistor.
Described mobile phone indicating circuit, wherein, the D utmost point of described first field effect transistor is connected with described luminous indicator elment, and the S utmost point connects with reference to ground, and the G utmost point is connected with the control end that is used to send missed call and do not read SMS message pulse width modulating signal by second field effect transistor.
Described mobile phone indicating circuit, wherein, it also comprises the FET switch circuit that an input is connected with battery of mobile phone, and the switch control end of described FET switch circuit is connected with the second control signal end, and its output is connected with first end of described luminous indicator elment.
Described mobile phone indicating circuit, wherein, described FET switch circuit comprises the 3rd field effect transistor and the 4th field effect transistor, the G utmost point of described the 3rd field effect transistor is connected with the described second control signal end, the S utmost point connects with reference to ground, the D utmost point and is connected with the G utmost point of described the 4th field effect transistor, the S utmost point of described the 4th field effect transistor is connected with described battery of mobile phone, and its D utmost point is connected with first end of described luminous indicator elment.
Described mobile phone indicating circuit, wherein, it also comprises first diode that is arranged between described the 4th field effect transistor and the described luminous indicator elment, and the positive pole of described first diode is connected with the D utmost point of described the 4th field effect transistor, the negative pole of described first diode is connected with first end of described luminous indicator elment;
Described mobile phone indicating circuit, wherein, it also comprises second diode that is arranged between described cell-phone charging end and the described luminous indicator elment, and the positive pole of described second diode is connected with described cell-phone charging end, and the negative pole of described second diode is connected with the negative pole of described first diode.
Described mobile phone indicating circuit, wherein, the positive pole of described second diode also is connected with described cell-phone charging end by first current-limiting resistance.
Described mobile phone indicating circuit, wherein, the negative pole public connecting end of described first diode and second diode is connected with first end of described luminous indicator elment by second current-limiting resistance.
Described mobile phone indicating circuit, wherein, the G utmost point of described second field effect transistor is connected with the control end that is used to send missed call and do not read SMS message pulse width modulating signal, and its S utmost point connects with reference to ground, and its D utmost point is connected with the G utmost point of first field effect transistor.
Wherein, described luminous indicator elment is a light-emitting diode
Beneficial effect: a kind of mobile phone indicating circuit provided by the utility model, when being used to be implemented in the battery deep discharge, plug the pre-charge state of indication mobile phone behind the charger.This circuit can be realized the breath light effect simultaneously, when the mobile phone normal boot-strap uses, and indication missed call and incident such as do not read SMS message.
The simple discrete component of the utility model utilization realizes that in same circuit precharge indication and breath light indicate this two functions, has reduced cost; And the utility model can remedy the defective that the low-end mobile phone platform can not be realized preliminary filling indication, can use on any low-end mobile phone platform that does not have a preliminary filling deixis.
Description of drawings
Fig. 1 is the mobile phone indicating circuit structural representation of the utility model embodiment.
Embodiment
A kind of mobile phone indicating circuit that the utility model provides, clearer, clear and definite for making the purpose of this utility model, technical scheme and advantage, below the utility model is further described with reference to the accompanying drawing embodiment that develops simultaneously.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
A kind of mobile phone indicating circuit that the utility model embodiment provides, utilize ball bearing made using to realize breath light indication and precharge indication simultaneously, as shown in Figure 1, the mobile phone indicating circuit of embodiment, comprise a luminous indicator elment D3, this luminous indicator elment D3 is a light-emitting diode, and first end 11 of described luminous indicator elment D3 is connected to the cell-phone charging end, and its second end 12 connects with reference to ground by the first field effect transistor Q3.Field effect transistor has 3 polarity, grid (the G utmost point), drain electrode (the D utmost point), source electrode (the S utmost point).
Wherein, the D utmost point of the described first field effect transistor Q3 is connected with described luminous indicator elment D3, and the S utmost point of Q3 connects with reference to ground, and the G utmost point of Q3 is connected with the control end 100 that is used to send missed call and do not read SMS message pulse width modulating signal by the second field effect transistor Q4.
Further, described mobile phone indicating circuit, as shown in Figure 1, it also comprises the FET switch circuit 300 that an input is connected with battery of mobile phone, the switch control end 13 of described FET switch circuit 300 is connected with the second control signal end 200 that is used to control described FET switch circuit 300 switches, and described FET switch circuit 300 outputs 14 are connected with first end 11 of described luminous indicator elment D3.
As shown in Figure 1, described FET switch circuit 300 comprises the 3rd field effect transistor Q1 and the 4th field effect transistor Q2, the D utmost point that the G utmost point of described the 3rd field effect transistor Q1 is connected with the described second control signal end 200, the S utmost point of Q1 connects with reference to ground, Q1 is connected with the G utmost point of described the 4th field effect transistor Q2, the S utmost point of described the 4th field effect transistor Q2 is connected with described battery of mobile phone, and the D utmost point of Q2 is connected with first end 11 of described luminous indicator elment D3.
Embodiment further, as shown in Figure 1, it also comprises the first diode D1 that is arranged between described the 4th field effect transistor Q2 and the described luminous indicator elment D3, and the positive pole of the described first diode D1 is connected with the D utmost point of described the 4th field effect transistor Q2, the negative pole of the described first diode D2 is connected with first end 11 of described luminous indicator elment D3.
As shown in Figure 1, described mobile phone indicating circuit, also comprise and be arranged on the second diode D2 between described cell-phone charging end and the described luminous indicator elment D3, the positive pole of the described second diode D2 and described cell-phone charging end, the negative pole of the described second diode D2 is connected with the negative pole of the described first diode D1.
And also be connected with described cell-phone charging end by the first current-limiting resistance R6 at the positive pole of the described second diode D2.
And be connected with first end 11 of described luminous indicator elment D3 by the second current-limiting resistance R7 at the negative pole public connecting end of the described first diode D1 and the second diode D2.
The G utmost point of the described second field effect transistor Q4 is connected with the control end 100 that is used to send missed call and do not read SMS message pulse width modulating signal, and the S utmost point of Q4 connects with reference to ground, and the D utmost point of Q4 is connected with the G utmost point of the first field effect transistor Q3.
The mobile phone indicating circuit of the utility model embodiment utilizes ball bearing made using to realize breath light indication and precharge indication simultaneously, realizes principle as shown in Figure 1:
One, breath light deixis principle:
When the cell-phone charging end was not inserted charger, the second control signal end 200 sent control signal control Q1 Q2 is opened, and used battery of mobile phone to give lamp luminous indicator elment D3 power supply.Plug when being connected to the cell-phone charging end as charger, send control signal control by the second control signal end 200 and turn-off Q1, Q2 uses charger to give lamp D3 power supply.Missed call is arranged or when not reading SMS message, by the switching time that is used to send missed call and the control end 100 of the pulse width modulating signal that do not read SMS message sends PWM (pulse width modulating signal) signal controlling Q4, the ON time of Q3 is shortened by long, progressively turn-off, the switch ratio of lamp D3 is progressively shortened by long like this, because the human eye vision effect, the effect of lamp is exactly by bright progressively deepening, realizes effect of breathing.
Two, preliminary filling deixis principle:
When the battery deep discharge, mobile phone can not normal boot-strap, field effect transistor Q1, and Q2, Q4 is in off state.After plugging charger, mobile phone detects charger, and Q3 is opened, and lights lamp D3, the indication precharging state.When preliminary filling finishes, behind the mobile phone energy normal boot-strap, turn-off Q3, Q4 extinguishes lamp D3.
Therefore a kind of mobile phone indicating circuit provided by the utility model when being used to be implemented in the battery deep discharge, is plugged the pre-charge state of indication mobile phone behind the charger.This circuit can be realized the breath light effect simultaneously, when the mobile phone normal boot-strap uses, and indication missed call and incident such as do not read SMS message.
The simple discrete component of the utility model utilization realizes that in same circuit precharge indication and breath light indicate this two functions, has reduced cost; And the utility model can remedy the defective that the low-end mobile phone platform can not be realized preliminary filling indication, can use on any low-end mobile phone platform that does not have a preliminary filling deixis.
Should be understood that; application of the present utility model is not limited to above-mentioned giving an example; for those of ordinary skills, can be improved according to the above description or conversion, all these improvement and conversion all should belong to the protection range of the utility model claims.
Claims (10)
1. a mobile phone indicating circuit comprises a luminous indicator elment, it is characterized in that, first end of described luminous indicator elment is connected to the cell-phone charging end, and its second end connects with reference to ground by first field effect transistor.
2. mobile phone indicating circuit according to claim 1, it is characterized in that, the D utmost point of described first field effect transistor is connected with described luminous indicator elment, the S utmost point connects with reference to ground, and the G utmost point is connected with the control end that is used to send missed call and do not read SMS message pulse width modulating signal by second field effect transistor.
3. mobile phone indicating circuit according to claim 1, it is characterized in that, it also comprises the FET switch circuit that an input is connected with battery of mobile phone, the switch control end of described FET switch circuit is connected with the second control signal end, and its output is connected with first end of described luminous indicator elment.
4. mobile phone indicating circuit according to claim 3, it is characterized in that, described FET switch circuit comprises the 3rd field effect transistor and the 4th field effect transistor, the G utmost point of described the 3rd field effect transistor is connected with the described second control signal end, the S utmost point connects with reference to ground, the D utmost point and is connected with the G utmost point of described the 4th field effect transistor, the S utmost point of described the 4th field effect transistor is connected with described battery of mobile phone, and its D utmost point is connected with first end of described luminous indicator elment.
5. mobile phone indicating circuit according to claim 4, it is characterized in that, it also comprises first diode that is arranged between described the 4th field effect transistor and the described luminous indicator elment, and the positive pole of described first diode is connected with the D utmost point of described the 4th field effect transistor, the negative pole of described first diode is connected with first end of described luminous indicator elment.
6. mobile phone indicating circuit according to claim 5, it is characterized in that, it also comprises second diode that is arranged between described cell-phone charging end and the described luminous indicator elment, the positive pole of described second diode is connected with described cell-phone charging end, and the negative pole of described second diode is connected with the negative pole of described first diode.
7. mobile phone indicating circuit according to claim 6 is characterized in that, the positive pole of described second diode also is connected with described cell-phone charging end by first current-limiting resistance.
8. mobile phone indicating circuit according to claim 7 is characterized in that, the negative pole public connecting end of described first diode and second diode is connected with first end of described luminous indicator elment by second current-limiting resistance.
9. mobile phone indicating circuit according to claim 2, it is characterized in that, the G utmost point of described second field effect transistor is connected with the control end that is used to send missed call and do not read SMS message pulse width modulating signal, and its S utmost point connects with reference to ground, and its D utmost point is connected with the G utmost point of first field effect transistor.
10. according to the arbitrary described mobile phone indicating circuit of claim 1-9, it is characterized in that described luminous indicator elment is a light-emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202872971U CN201839325U (en) | 2010-08-02 | 2010-08-02 | Mobile phone indicating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202872971U CN201839325U (en) | 2010-08-02 | 2010-08-02 | Mobile phone indicating circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201839325U true CN201839325U (en) | 2011-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202872971U Expired - Fee Related CN201839325U (en) | 2010-08-02 | 2010-08-02 | Mobile phone indicating circuit |
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| Country | Link |
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| CN (1) | CN201839325U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969483A (en) * | 2010-08-02 | 2011-02-09 | 惠州Tcl移动通信有限公司 | Indication circuit of mobile phone |
| WO2015100623A1 (en) * | 2013-12-31 | 2015-07-09 | 华为终端有限公司 | Indication lamp control circuit and electronic device |
-
2010
- 2010-08-02 CN CN2010202872971U patent/CN201839325U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969483A (en) * | 2010-08-02 | 2011-02-09 | 惠州Tcl移动通信有限公司 | Indication circuit of mobile phone |
| WO2015100623A1 (en) * | 2013-12-31 | 2015-07-09 | 华为终端有限公司 | Indication lamp control circuit and electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20130802 |