CN202750126U - Dual-flash-lamp device of mobile phone - Google Patents
Dual-flash-lamp device of mobile phone Download PDFInfo
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- CN202750126U CN202750126U CN 201220382466 CN201220382466U CN202750126U CN 202750126 U CN202750126 U CN 202750126U CN 201220382466 CN201220382466 CN 201220382466 CN 201220382466 U CN201220382466 U CN 201220382466U CN 202750126 U CN202750126 U CN 202750126U
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- photoflash lamp
- voltage input
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- supply voltage
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Abstract
The utility model discloses a dual-flash-lamp device of a mobile phone. The dual-flash-lamp device comprises a first flash lamp, a second flash lamp, a first current-limiting resistor, a second current-limiting resistor, a power supply voltage input module, a power supply voltage output module and a switch selection module. The power supply voltage input module is connected with a positive pole of the first flash lamp through the first current-limiting resistor, the power supply voltage input module is further connected with a positive pole of the second flash lamp through the second current-limiting resistor, and the power supply voltage input module is further connected with the switch selection module. The switch selection module is connected with a negative pole of the first flash lamp, a negative pole of the second flash lamp and the power supply voltage output module, the output module is connected with a reference voltage end, and the first flash lamp and the second flash lamp are controlled by the switch selection module to light and extinguish simultaneously or the second flash lamp is controlled by the switch selection module to light and extinguish singly to enable light to be sufficient when the mobile phone photographs and enable photographed pictures to be clear.
Description
Technical field
The utility model relates to mobile phone, particularly a kind of mobile phone double flashing light device.
Background technology
In the mobile Internet epoch, intelligent terminal market business opportunity is unlimited, and the competition of the whole world between each large well-known manufacturer has been tending towards white-hot, one after another with the attitude of the advantage market of rushing to attack.Recently, the growth momentum of domestic smart mobile phone is also rather powerful, and the market share has obtained larger lifting.Laterally widescreen and super large screen has become a main trend of present mobile phone development.
More and more be subject to user's welcome along with the smart mobile phone of large-screen, manufacturer more pays attention to the user and experiences.And the photographing function of mobile phone important the index whether powerful user of being will consider when buying mobile phone.Light when taking pictures whether sufficient and take pictures after photo whether the factor such as clear be the important measurement index of photographing function of mobile phone.Existing big screen intelligent mobile phone adopts single photoflash lamp can produce the defective of light filling deficiency.
Thereby prior art is still waiting to improve and improve.
The utility model content
In view of above-mentioned the deficiencies in the prior art part, the purpose of this utility model is to provide a kind of mobile phone double flashing light device, brought the problem of light filling deficiency to solve single photoflash lamp, satisfied the smart mobile phone of large-screen when taking pictures, to the requirement of the brightness demand of photoflash lamp and the definition of taking pictures.
In order to achieve the above object, the utility model has been taked following technical scheme:
A kind of mobile phone double flashing light device, wherein, comprising: the first photoflash lamp, the second photoflash lamp, the first current-limiting resistance, the second current-limiting resistance, the supply voltage input module that is used to the power supply of the first photoflash lamp and the second photoflash lamp, output module and be used for control the first photoflash lamp and the switch of the simultaneously light on and off of the second photoflash lamp or the independent light on and off of the second photoflash lamp is selected module; Described supply voltage input module connects the anode of the first photoflash lamp by the first current-limiting resistance, also connect the anode of the second photoflash lamp by the second current-limiting resistance; Described supply voltage input module also connecting valve is selected module; Described switch selects module to connect the negative electrode of the first photoflash lamp, negative electrode and the output module of the second photoflash lamp; Described output module connects reference voltage end.
Described mobile phone double flashing light device, wherein, described the first photoflash lamp and the second photoflash lamp are light-emitting diode.
Described mobile phone double flashing light device, wherein, described output module comprises power management chip and the first electric capacity; The drive end of described power management chip connects the negative electrode of the first photoflash lamp, negative electrode and the switch of the second photoflash lamp selected module; The power supply ground end ground connection of described power management chip; The reference voltage input terminal of described power management chip connects reference voltage end, also by the first capacity earth.
Described mobile phone double flashing light device, wherein, described output module also comprises the first resistance, the reference voltage input terminal of described power management chip connects reference voltage end by the first resistance.
Described mobile phone double flashing light device, wherein, described the first resistance is Zero-ohm resistor.
Described mobile phone double flashing light device, wherein, described supply voltage input module comprises: supply voltage input and the second electric capacity; Described supply voltage input is by the second capacity earth; Described supply voltage input connects the anode of the first photoflash lamp by the first current-limiting resistance, also connect the anode of the second photoflash lamp by the second current-limiting resistance; Described supply voltage input also connecting valve is selected module.
Described mobile phone double flashing light device, wherein, described switch selects module to comprise: controller, the second resistance and field effect transistor; The first voltage end of described controller is connected the supply voltage input module with the second voltage end; The first drive end of described controller connects the grid of field effect transistor and the negative electrode of the first photoflash lamp, also connects the drain electrode of field effect transistor by the second resistance; The second drive end of described controller connects the source electrode of field effect transistor, negative electrode and the output module of the second photoflash lamp, also connects the drain electrode of field effect transistor by the second resistance; The earth terminal ground connection of described controller; Single photoflash lamp control end of described controller connects single photoflash lamp button, and the double flashing light control end of described controller connects the double flashing light button.
Described mobile phone double flashing light device, wherein, described field effect transistor is the PMOS pipe.
Described mobile phone double flashing light device wherein, also comprises: the first photoflash lamp interface and the second photoflash lamp interface that is connected connecting the second photoflash lamp that are used for connecting the first photoflash lamp; Described supply voltage input module connects the first current-limiting resistance by the first photoflash lamp interface, also connects the second current-limiting resistance by the second photoflash lamp interface; Described switch selection module connects the negative electrode of the first photoflash lamp by the first photoflash lamp interface, also connect the negative electrode of the second photoflash lamp by the second photoflash lamp interface.
Compared to prior art, the mobile phone double flashing light device that the utility model provides is owing to having adopted the first photoflash lamp, the second photoflash lamp, the first current-limiting resistance, the second current-limiting resistance, supply voltage input module, output module and switch to select module; Described supply voltage input module connects the anode of the first photoflash lamp by the first current-limiting resistance, also connect the anode of the second photoflash lamp by the second current-limiting resistance; Described supply voltage input module also connecting valve is selected module; Described switch selects module to connect the negative electrode of the first photoflash lamp, negative electrode and the output module of the second photoflash lamp; Described output module connects reference voltage end; Be the power supply of the first photoflash lamp and the second photoflash lamp by the supply voltage input module, and select module to control the first photoflash lamp and the simultaneously light on and off of the second photoflash lamp or the independent light on and off of the second photoflash lamp by switch, so that mobile phone is bright and clear when taking pictures, take the photo that comes clear.
Description of drawings
Fig. 1 is the schematic diagram of the utility model mobile phone double flashing light device.
Embodiment
The utility model provides a kind of mobile phone double flashing light device, for purpose, technical scheme and the effect of utility model are clearer, clear and definite, referring to the accompanying drawing embodiment that develops simultaneously the utility model is further described.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
See also Fig. 1, Fig. 1 is the schematic diagram of the utility model mobile phone double flashing light device.As shown in Figure 1, the mobile phone double flashing light device that the utility model provides comprises: the first photoflash lamp D1, the second photoflash lamp D2, the first current-limiting resistance R1, the second current-limiting resistance R2, supply voltage input module 110, switch are selected module 120 and output module 130; Described supply voltage input module 110 connects the anode of the first photoflash lamp D1 by the first current-limiting resistance R1, also connect the anode of the second photoflash lamp D2 by the second current-limiting resistance R2, is used to the first photoflash lamp D1 and the second photoflash lamp D2 power supply; Described supply voltage input module 110 is gone back connecting valve and is selected module 120; Described switch selects module 120 to connect the negative electrode of the first photoflash lamp D1, negative electrode and the output module 130 of the second photoflash lamp D2; Described output module 130 connects reference voltage end VREG_MSME.
Described the first photoflash lamp D1 and the second photoflash lamp D2 are light-emitting diode, i.e. LED.In existing mobile phone, most of factory commercial city adopts semiconductor light-emitting-diode to come mobile phone is carried out light filling.
Please continue to consult Fig. 1, below mobile phone double flashing light device that the utility model is provided be elaborated.
Described supply voltage input module 110 is used to the first photoflash lamp D1 and the second photoflash lamp D2 power supply.Described supply voltage input module 110 comprises: supply voltage input VBATT and the second capacitor C 2.Described supply voltage input VBATT is used for filtering by the second capacitor C 2 ground connection; Described supply voltage input VBATT also connects the anode of the first photoflash lamp D1 by the first current-limiting resistance R1, also connect the anode of the second photoflash lamp D2 by the second current-limiting resistance R2; Described supply voltage input VBATT also connecting valve selects module 120.
Described switch is selected module 120, is used for simultaneously light on and off of control the first photoflash lamp D1 and the second photoflash lamp D2 or the independent light on and off of the second photoflash lamp D2.Described switch selects module 120 to comprise: controller U2, the second resistance R 4 and field effect transistor Q1; The first voltage end VPH_PWR1 of described controller U2 is connected supply voltage input VBATT with second voltage end VPH_PWR2; The first drive end FLSH_DRV_N1 of described controller U2 connects the grid of field effect transistor Q1 and the negative electrode of the first photoflash lamp D1, also connects the drain electrode of field effect transistor Q1 by the second resistance R 4; The second drive end FLSH_DRV_N2 of described controller U2 connects the source electrode of field effect transistor Q1, negative electrode and the output module 130 of the second photoflash lamp D2, also connects the drain electrode of field effect transistor Q1 by the second resistance R 4; The earth terminal GND ground connection of described controller U2.Described field effect transistor Q1 selects NMOS pipe or PMOS pipe all can realize above-mentioned functions, and in the present embodiment, described field effect transistor Q1 is the PMOS pipe.Single photoflash lamp control end FLASH_KEY2 of described controller U2 connects single photoflash lamp button (not shown), be used for the light on and off of control the second photoflash lamp D2, the double flashing light control end FLASH_KEY1 of described controller U2 connects double flashing light button (not shown), is used for the light on and off of control the first photoflash lamp D1 and the second photoflash lamp D2; The mobile phone double flashing light device that adopts the utility model to provide makes the user select single photoflash lamp or double flashing light according to the actual demand in the operating process, makes things convenient for for the user has brought greatly.
Described output module 130 is used for providing the driving signal, drives the first photoflash lamp D1 and the second photoflash lamp D2 is shinny.Described output module 130 comprises power management chip U1 and the first capacitor C 1; The drive end H1 of described power management chip U1 connects the negative electrode of the first photoflash lamp D1, the negative electrode of the second photoflash lamp D2 and the first drive end FLSH_DRV_N1 of controller U2; The power supply ground VSS ground connection of described power management chip U1; The reference voltage input terminal H2 of described power management chip U1 connects reference voltage end VREG_MSME, also by the first capacitor C 1 ground connection; Described the first capacitor C 1 is used for the low frequency wave signal of filtering reference voltage end VREG_MSME.It is the chip of PM7540 that described power management chip U1 can adopt model, also can adopt other chip of this series and the power management chip with said function.
Further, described output module 130 also comprises the first resistance R 3, and the reference voltage input terminal H2 of described power management chip U1 connects reference voltage end VREG_MSME by the first resistance R 3.The first resistance R 3 and the first capacitor C 1 one are used from the low frequency wave signal among the filtering reference voltage end VREG_MSME.Described the first resistance R 3 is used for determining whether reference voltage end VREG_MSME connects the reference voltage input terminal H2 of power management chip U1.Preferably, described the first resistance R 3 is Zero-ohm resistor, can be as required with its disconnection or place in circuit, during disconnection this road circuit for opening circuit, during place in circuit, be equivalent to wire on circuit without impact.
In actual applications, preferably, described mobile phone double flashing light device also comprises: the first photoflash lamp interface 210 and the second photoflash lamp interface 220; Described supply voltage input VBATT connects the first current-limiting resistance R1 by the first photoflash lamp interface 210, also connects the second current-limiting resistance R2 by the second photoflash lamp interface 220; The first drive end FLSH_DRV_N1 of described controller U2 connects the negative electrode of the first photoflash lamp D1 by the first photoflash lamp interface 210, the second drive end FLSH_DRV_N2 of described controller U2 also connects the negative electrode of the second photoflash lamp D2 by the second photoflash lamp interface 220.Described the first photoflash lamp interface 210 and the second photoflash lamp interface 320 are respectively applied to connect the first photoflash lamp D1 and the second photoflash lamp D2, greatly facilitate wiring and production, are similar to binding post.
Below in conjunction with schematic diagram, the principle of the utility model mobile phone double flashing light device is elaborated.
In the present embodiment, the first photoflash lamp interface 210 be connected photoflash lamp interface 220 and connect respectively the first photoflash lamp D1 and the second photoflash lamp D2, also be in series with respectively the first current-limiting resistance R1 and the second current-limiting resistance R2 for current limliting.Described supply voltage input VBATT gives separately two interface power supplies, do not need power management chip U1 power supply and software that the voltage of the first photoflash lamp D1 and the second photoflash lamp D2 is set, convenient single photoflash lamp button and double flashing light are by the on and off of key control the first photoflash lamp D1 and the second photoflash lamp D2.With the reference voltage end VREG_MSME that the reference voltage input terminal H2 of power management chip U1 is connected, make drive end H1 that the voltage signal of 1.8V is provided.
When single photoflash lamp button is pressed, when being single photoflash lamp control end FLASH_KEY2 work, the second drive end FLSH_DRV_N2 of described controller U2 sends the driving signal of photoflash lamp negative pole to the drive end H1 of power management chip U1, power management chip U1 drives the photoflash lamp negative pole again, because the supply voltage input VBATT signal of mobile phone has passed through the anode of photoflash lamp interface the second photoflash lamp D2, and supply voltage input VBATT voltage signal drives the voltage swing of signal greater than the negative electrode of the second photoflash lamp D2, then the second photoflash lamp D2 is shinny.At this moment, field effect transistor Q1 is in cut-off state, and the first photoflash lamp D1 does not work.
When the double flashing light button is pressed, i.e. during double flashing light control end FLASH_KEY1 work, the first drive end FLSH_DRV_N1 of described controller U2 sends and drives signal to the drive end H1 of power management chip U1.Double flashing light control end FLASH_KEY1 controls single photoflash lamp control end FLASH_KEY2 by field effect transistor Q1, when double flashing light control end FLASH_KEY1 button is pressed, and the first drive end FLSH_DRV_N1 output low level, field effect transistor pipe Q1 conducting.Power management chip U1 drives photoflash lamp the first photoflash lamp D1 and the second photoflash lamp D2 simultaneously, supply voltage input VBATT gives two photoflash lamp interface power supplies and the power supply of photoflash lamp keystroke interface simultaneously, so that the anode voltage of the first photoflash lamp D1 and the second photoflash lamp D2 is greater than cathode voltage, double flashing light is bright.
In sum, the mobile phone double flashing light device that the utility model provides is owing to having adopted the first photoflash lamp, the second photoflash lamp, the first current-limiting resistance, the second current-limiting resistance, supply voltage input module, output module and switch to select module; Described supply voltage input module connects the anode of the first photoflash lamp by the first current-limiting resistance, also connect the anode of the second photoflash lamp by the second current-limiting resistance; Described supply voltage input module also connecting valve is selected module; Described switch selects module to connect the negative electrode of the first photoflash lamp, negative electrode and the output module of the second photoflash lamp; Described output module connects reference voltage end; Be the power supply of the first photoflash lamp and the second photoflash lamp by the supply voltage input module, and select module to control the first photoflash lamp and the simultaneously light on and off of the second photoflash lamp or the independent light on and off of the second photoflash lamp by switch, so that mobile phone is bright and clear when taking pictures, take the photo that comes clear.The mobile phone double flashing light device that adopts the utility model to provide utilizes supply voltage input VBATT separately to two interface power supplies, do not need power management chip power supply and software that the voltage of the first photoflash lamp and the second photoflash lamp is set, fully driven the loaded work piece of double flashing light, remedied single photoflash lamp and can not accomplish to the light of surrounding environment the light filling defective of abundant light filling, even it is bright and clear also to accomplish to take pictures under dim environment.The mobile phone double flashing light device that the utility model provides does not improve in existing design, the user can select single photoflash lamp or double flashing light according to the actual demand in the operating process, so that the user is bright and clear when taking pictures, photo is clear, has saved the mobile phone cost.
Be understandable that; for those of ordinary skills; can be equal to replacement or change according to the technical solution of the utility model and utility model design thereof, and all these changes or replacement all should belong to the protection range of the appended claim of the utility model.
Claims (9)
1. mobile phone double flashing light device, it is characterized in that, comprising: the first photoflash lamp, the second photoflash lamp, the first current-limiting resistance, the second current-limiting resistance, the supply voltage input module that is used to the power supply of the first photoflash lamp and the second photoflash lamp, output module and be used for control the first photoflash lamp and the switch of the simultaneously light on and off of the second photoflash lamp or the independent light on and off of the second photoflash lamp is selected module; Described supply voltage input module connects the anode of the first photoflash lamp by the first current-limiting resistance, also connect the anode of the second photoflash lamp by the second current-limiting resistance; Described supply voltage input module also connecting valve is selected module; Described switch selects module to connect the negative electrode of the first photoflash lamp, negative electrode and the output module of the second photoflash lamp; Described output module connects reference voltage end.
2. mobile phone double flashing light device according to claim 1 is characterized in that, described the first photoflash lamp and the second photoflash lamp are light-emitting diode.
3. mobile phone double flashing light device according to claim 1 is characterized in that, described output module comprises power management chip and the first electric capacity; The drive end of described power management chip connects the negative electrode of the first photoflash lamp, negative electrode and the switch of the second photoflash lamp selected module; The power supply ground end ground connection of described power management chip; The reference voltage input terminal of described power management chip connects reference voltage end, also by the first capacity earth.
4. mobile phone double flashing light device according to claim 3 is characterized in that, described output module also comprises the first resistance, and the reference voltage input terminal of described power management chip connects reference voltage end by the first resistance.
5. mobile phone double flashing light device according to claim 4 is characterized in that, described the first resistance is Zero-ohm resistor.
6. mobile phone double flashing light device according to claim 1 is characterized in that, described supply voltage input module comprises: supply voltage input and the second electric capacity; Described supply voltage input is by the second capacity earth; Described supply voltage input connects the anode of the first photoflash lamp by the first current-limiting resistance, also connect the anode of the second photoflash lamp by the second current-limiting resistance; Described supply voltage input also connecting valve is selected module.
7. mobile phone double flashing light device according to claim 1 is characterized in that, described switch selects module to comprise: controller, the second resistance and field effect transistor; The first voltage end of described controller is connected the supply voltage input module with the second voltage end; The first drive end of described controller connects the grid of field effect transistor and the negative electrode of the first photoflash lamp, also connects the drain electrode of field effect transistor by the second resistance; The second drive end of described controller connects the source electrode of field effect transistor, negative electrode and the output module of the second photoflash lamp, also connects the drain electrode of field effect transistor by the second resistance; The earth terminal ground connection of described controller; Single photoflash lamp control end of described controller connects single photoflash lamp button, and the double flashing light control end of described controller connects the double flashing light button.
8. mobile phone double flashing light device according to claim 7 is characterized in that, described field effect transistor is the PMOS pipe.
9. mobile phone double flashing light device according to claim 1 is characterized in that, also comprises: the first photoflash lamp interface and the second photoflash lamp interface that is connected connecting the second photoflash lamp that are used for connecting the first photoflash lamp; Described supply voltage input module connects the first current-limiting resistance by the first photoflash lamp interface, also connects the second current-limiting resistance by the second photoflash lamp interface; Described switch selection module connects the negative electrode of the first photoflash lamp by the first photoflash lamp interface, also connect the negative electrode of the second photoflash lamp by the second photoflash lamp interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220382466 CN202750126U (en) | 2012-08-03 | 2012-08-03 | Dual-flash-lamp device of mobile phone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220382466 CN202750126U (en) | 2012-08-03 | 2012-08-03 | Dual-flash-lamp device of mobile phone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202750126U true CN202750126U (en) | 2013-02-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220382466 Expired - Fee Related CN202750126U (en) | 2012-08-03 | 2012-08-03 | Dual-flash-lamp device of mobile phone |
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| Country | Link |
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| CN (1) | CN202750126U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106506749A (en) * | 2016-12-31 | 2017-03-15 | 广州市朝通科技有限公司 | Flash lamp component, mobile terminal |
| CN112234704A (en) * | 2020-10-12 | 2021-01-15 | 维沃移动通信有限公司 | Flash lamp power supply switching circuit, flash lamp control method and electronic equipment |
-
2012
- 2012-08-03 CN CN 201220382466 patent/CN202750126U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106506749A (en) * | 2016-12-31 | 2017-03-15 | 广州市朝通科技有限公司 | Flash lamp component, mobile terminal |
| WO2018120775A1 (en) * | 2016-12-31 | 2018-07-05 | 广州市朝通科技有限公司 | Flash assembly and mobile terminal |
| CN106506749B (en) * | 2016-12-31 | 2019-06-14 | 广州市朝通科技有限公司 | Mobile terminal with flash lamp component |
| CN112234704A (en) * | 2020-10-12 | 2021-01-15 | 维沃移动通信有限公司 | Flash lamp power supply switching circuit, flash lamp control method and electronic equipment |
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Granted publication date: 20130220 Termination date: 20140803 |
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