CN2646999Y - Mobile phone back light power-saving device - Google Patents
Mobile phone back light power-saving device Download PDFInfo
- Publication number
- CN2646999Y CN2646999Y CNU2003201119621U CN200320111962U CN2646999Y CN 2646999 Y CN2646999 Y CN 2646999Y CN U2003201119621 U CNU2003201119621 U CN U2003201119621U CN 200320111962 U CN200320111962 U CN 200320111962U CN 2646999 Y CN2646999 Y CN 2646999Y
- Authority
- CN
- China
- Prior art keywords
- mobile phone
- backlight
- circuit
- control circuit
- light
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The utility model discloses a mobile phone back light power-saving device, which provides the mobile phone back light power-saving device for saving power of mobile phone and reducing charging times of mobile phone. A mobile phone back light circuit is connected with a driving circuit, a logic judge control circuit and a light sensing member. The mobile phone back light circuit, the driving circuit, the logic judge control circuit and the light sensing member are connected with a power supply. The light sensing member can sense intensity and weakness of the light and transmit the signal to the logic judge control circuit. The logic judge control circuit decides whether to open a back light lamp or not according to e intensity and weakness of the light, and transmits the signal of opening the back light to the driving circuit. The driving circuit drives the back light to illuminate after receiving the signal. The device is of simple circuit structure, low cost, small volume, little energy consumption and fitting for various mobile phones.
Description
Technical field
The utility model relates to communication field, in particular, relates to a kind of mobile phone circuit.
Background technology
For regular handset, if open the backlight of mobile phone, no matter be by force or locate a little less than the light to use at light, the mobile phone backlight is closed after always opening a period of time earlier, at this moment opening backlight in the light strength there is no need, in addition when mobile phone communication backlight bright also be unnecessary, wasted the electric energy of mobile phone like this, make the charging times of mobile phone many.
The utility model content
The utility model is in order to overcome weak point of the prior art, to provide a kind of and can open backlight automatically according to the light power, save the electric energy of mobile phone, reducing the mobile phone power save circuit backlight of cell-phone charging number of times.
The utility model is achieved through the following technical solutions:
A kind of mobile phone battery saving arrangement backlight, comprise the mobile phone backlight circuit, described mobile phone backlight circuit is connected with drive circuit, logic determines control circuit, sensor devices successively, and described mobile phone backlight circuit, drive circuit, logic determines control circuit, sensor devices are connected with power supply respectively; The power of described sensor devices sensing light, then signal is sent to the logic determines control circuit, the logic determines control circuit judges whether that according to the power of light needs open backlight, and needs are opened the backlight signal deliver to drive circuit, drive circuit receives that the luminescent device in the signal rear drive mobile phone backlight circuit is luminous.
Described logic determines control circuit adopts voltage comparator or trigger to realize.
Described sensor devices is sensitization triode or silicon photocell.
Described drive circuit adopts positive-negative-positive triode, NPN type triode to realize or booster driving circuit is realized.
The utlity model has following beneficial effect:
1. at the brighter place of light, do not need to open place backlight and close backlightly, only open backlight than dark place (when not conversing) at light, saved the electric energy of mobile phone, reduced the cell-phone charging number of times.
2. circuit structure is simple, and cost is low, and volume is little, and power consumption is little.
Description of drawings
Fig. 1 is a mobile phone power save circuit block diagram backlight;
Fig. 2-1 is a sensitization triode mobile phone backlight circuit embodiment circuit diagram for sensor devices;
Fig. 2-2 is the mobile phone backlight circuit embodiment circuit diagram of the Light-Emitting Diode of optical drive for series connection.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, sensor devices, logic determines control circuit, drive circuit, mobile phone backlight circuit connect successively and are connected with power supply respectively.The power of sensor devices sensing light, then signal is sent to the logic determines control circuit, the logic determines control circuit judges whether that according to the power of light needs open backlight, and needs are opened the backlight signal deliver to drive circuit, drive circuit receives that the luminescent device in the signal rear drive mobile phone backlight circuit is luminous.
Sensor devices can adopt 3DU2A sensitization triode, FPT100 sensitization triode or silicon photocell etc.The logic determines control circuit can adopt voltage comparator or trigger to realize, also can realize by the software of mobile phone.Trigger can adopt Schmidt trigger.The model of Schmidt trigger can consider that 7413 require the voltage with 5V with 7413 realizations, can adopt the MAX922 combination to realize if the mobile phone supply power voltage is 3.6-3.7V.The visual logic determines control circuit of drive circuit be output as the high still low NPN of employing type triode as 9013, ss8050 or positive-negative-positive triode realize that drive current will satisfy mobile phone requirement backlight.Individual indefinite as the number 3-6 of mobile phone backlight, total current is 40 milliamperes-120 milliamperes.
Sensor devices is installed in the hand of making a phone call and is difficult for running into the mobile phone surface, and such as the clamshell phone inboard, clamshell phone is not installed in the mobile phone uppermost position.The power supply of this circuit is connected when clamshell phone is renovated or when pressing button, and clamshell phone is not connected when pressing button.
Specific embodiment of the utility model is shown in Fig. 2-1 or Fig. 2-2.Fig. 2-1 sensor devices is the sensitization triode; The logic determines control circuit is connected with the sensitization triode by resistance R 1 and connects to form with the input and the Schmidt trigger input of Schmidt trigger; Drive circuit is composed in series by resistance R 2 and driving positive-negative-positive triode; Power supply is connected with resistance R 1, R2 respectively by switch, and the output of Schmidt trigger is connected with the base stage that drives the positive-negative-positive triode; The collector electrode that drives the positive-negative-positive triode is connected with the positive pole of each light-emitting diode of mobile phone backlight circuit, and the negative pole of the emitter of sensitization triode, the earth terminal of Schmidt trigger, light-emitting diode connects and is connected with the ground end.
The Light-Emitting Diode that Fig. 2-2 and the difference of Fig. 2-1 are backlight drive is for connecting, and it is made of booster circuits such as charge pumps.As MAX1561, MAX1582 etc., this mode drives and can save certain energy and guarantee the brightness uniformity of each luminous tube than Fig. 2-1.
When cellular phone flip or when pressing button, push-button switch is pressed, and circuit has electricity, when external light source is not enough, the sensitization triode by, Schmidt trigger is output as low level, drives the conducting of positive-negative-positive triode, lumination of light emitting diode is backlight bright.When external light source is sufficient, the conducting of sensitization triode, Schmidt trigger is output as high level driving positive-negative-positive triode to be ended, not conducting of light-emitting diode, backlight does not work.
If one day common five phone of a mobile phone, wherein three by day or under the evening light, two at light than the dark place, in each bright 30 seconds backlight, in the time of can saving 90 seconds backlight bright,
If received and dispatched or read ten notes in one day altogether, wherein eight are used at the light intensity place, in every bright 60 seconds backlight, in the time of can remaining 480 seconds backlight bright, add mobile phone games or mobile phone setting, can save every day about 600 seconds when backlight bright, promptly 10 minutes.The number 3-6 of mobile phone backlight indefinite, total current is 40 milliamperes-120 milliamperes, the power consumption of mobile phone backlight and cell phone standby power consumption were than 8: 1 to 24: 1, can make mobile phone every day few bright 10 minutes backlight, can prolong the cell phone standby time 80 every day assigns to 240 fens, by can once charge back prolongs standby time 7 to 20 hours of regular handset standby 4-6 days (getting calculation in five days).
Although disclosed a kind of mobile phone battery saving arrangement backlight that relates to has been carried out special description with reference to embodiment, those skilled in the art will understand under the situation that does not depart from scope and spirit of the present utility model, can carry out all conspicuous modification of form and details to it.Therefore, embodiment described above is illustrative and not restrictive, and under the situation that does not break away from spirit and scope of the present utility model, all variations and modification are all within scope of the present utility model.
Claims (4)
1. mobile phone battery saving arrangement backlight, comprise the mobile phone backlight circuit, it is characterized in that, described mobile phone backlight circuit is connected with drive circuit, logic determines control circuit, sensor devices successively, and described mobile phone backlight circuit, drive circuit, logic determines control circuit, sensor devices are connected with power supply respectively; The power of described sensor devices sensing light, then signal is sent to the logic determines control circuit, the logic determines control circuit judges whether that according to the power of light needs open backlight, and needs are opened the backlight signal deliver to drive circuit, drive circuit receives that the luminescent device in the signal rear drive mobile phone backlight circuit is luminous.
2. mobile phone according to claim 1 battery saving arrangement backlight is characterized in that, described logic determines control circuit adopts voltage comparator or trigger to realize.
3. mobile phone according to claim 1 and 2 battery saving arrangement backlight is characterized in that described sensor devices is sensitization triode or silicon photocell.
4. mobile phone according to claim 3 battery saving arrangement backlight is characterized in that, described drive circuit adopts positive-negative-positive triode, NPN type triode to realize or booster driving circuit is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201119621U CN2646999Y (en) | 2003-10-16 | 2003-10-16 | Mobile phone back light power-saving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201119621U CN2646999Y (en) | 2003-10-16 | 2003-10-16 | Mobile phone back light power-saving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2646999Y true CN2646999Y (en) | 2004-10-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2003201119621U Expired - Fee Related CN2646999Y (en) | 2003-10-16 | 2003-10-16 | Mobile phone back light power-saving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2646999Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103067596A (en) * | 2013-01-05 | 2013-04-24 | 广东欧珀移动通信有限公司 | Mobile terminal for rapidly displaying preset events and control method thereof |
| WO2015090115A1 (en) * | 2013-12-17 | 2015-06-25 | 于红勇 | Electronic product protective sleeve having flashlight |
-
2003
- 2003-10-16 CN CNU2003201119621U patent/CN2646999Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103067596A (en) * | 2013-01-05 | 2013-04-24 | 广东欧珀移动通信有限公司 | Mobile terminal for rapidly displaying preset events and control method thereof |
| CN103067596B (en) * | 2013-01-05 | 2015-03-18 | 广东欧珀移动通信有限公司 | Mobile terminal for rapidly displaying preset events and control method thereof |
| WO2015090115A1 (en) * | 2013-12-17 | 2015-06-25 | 于红勇 | Electronic product protective sleeve having flashlight |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |