CN207198723U - Hand-held PAD with low-power consumption - Google Patents
Hand-held PAD with low-power consumption Download PDFInfo
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- CN207198723U CN207198723U CN201721147187.3U CN201721147187U CN207198723U CN 207198723 U CN207198723 U CN 207198723U CN 201721147187 U CN201721147187 U CN 201721147187U CN 207198723 U CN207198723 U CN 207198723U
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Abstract
The utility model discloses a kind of hand-held PAD with low-power consumption, including main control PMU, public network module, GPS module and front and rear camera, main control PMU output port of power source and the source electrode of metal-oxide-semiconductor connect, the drain electrode of metal-oxide-semiconductor and the power end of GPS module connect, main control PMU output port of power source is connected by resistance R2 with metal-oxide-semiconductor grid, and metal-oxide-semiconductor grid is connected by resistance R3 with triode Q1 colelctor electrode, and the base stage of triode is connected by resistance R4 with main control PMU control terminal one；In the utility model GPS control module and the whole network it is logical/private network part mainly by metal-oxide-semiconductor and triode come controlling power circuit, GPS control module and the whole network be logical/and the power supply of private network part controls by metal-oxide-semiconductor Q8001, this power supply is closed under resting state, to reduce power consumption, to prevent metal-oxide-semiconductor from not exclusively turning on, triode Q8013 is added, to ensure the stabilization of system work.
Description
Technical field
The utility model belongs to portable terminal device power supply technical field of improvement, and in particular to a kind of hand-held with low-power consumption
PAD 。
Background technology
Intelligent terminal is combined with main control PMU（PMU）, public network module, GPS module and front and rear
Camera function, the intelligent and portable terminal for be available for client to browse webpage, sending and receiving e-mail.Intelligent and portable terminal is in order to save electricity
Amount, it will usually reduce the power consumption of hardware in itself, and close the equipment for being not presently within working condition, or set these
The standby state for entering low-power consumption, so as to reduce the overall electric quantity consumption of intelligent and portable terminal, extend usage time.
Current existing intelligent and portable terminal uses AP (Application Processor, using place when realizing function
Manage device) framework that is combined with CP (Communication Processor, communication processor), wherein, AP is completed such as sound
The functions such as video playback, document reading and processing；CP provides communication channel for application processor, realizes communication function.Due to intelligence
The network wireless signal of energy portable terminal device can change with the difference of terminal present position, whenever CP knows wireless network
When network signal changes, AP in a dormant state can be waken up, wireless network signal is read by CP by AP, and
Shown according to the signal on the signal update display screen of reading, intelligent and portable terminal user is understood in real time current wireless
Network signal state.
Problem be present in current existing intelligent and portable terminal：When wireless network signal changes, AP and CP will places
In working condition, rather than the resting state in low-power consumption, may especially when intelligent and portable terminal is in mobile status
Cause the frequent change of wireless network signal, and now AP may be in addition to more new signal be shown, at other application
Reason, and user also and is not concerned with wireless network signal situation of change now, but AP still needs according to network signal
Frequently change is constantly waken up from resting state, thereby increases the power consumption of intelligent and portable terminal.
Utility model content
The purpose of this utility model is to still have the problem of power consumption is excessive for current existing intelligent terminal, there is provided
A kind of hand-held PAD with low-power consumption.
Adopt the following technical scheme that to achieve the above object：A kind of hand-held PAD with low-power consumption, including main control PMU
（PMU）, public network module, GPS module and front and rear camera, it is characterized in that：Main control PMU VCC_IO ports
It is connected with the source electrode of metal-oxide-semiconductor one, the drain electrode of metal-oxide-semiconductor one and the power end of GPS module connect, source electrode and the drain electrode of metal-oxide-semiconductor one
Between and show resistance R1, main control PMU VCC_IO ports are connected by resistance R2 with metal-oxide-semiconductor grid, and metal-oxide-semiconductor grid passes through electricity
Resistance R3 is connected with triode Q1 colelctor electrode, and the base stage of triode is connected by resistance R4 with main control PMU control terminal one, and three
Pole pipe Q1 base stage is connected to ground by resistance R5, and triode Q1 emitter stage is connected to ground；Main control PMU VCC_ BAT ends
Mouth is connected with the source electrode of metal-oxide-semiconductor two, and the drain electrode of metal-oxide-semiconductor two is connected with the power end of public network module, the source electrode of metal-oxide-semiconductor two and drain electrode
Between and show resistance R6, main control PMU VCC_ BAT ports are connected by resistance R7 with metal-oxide-semiconductor grid, and metal-oxide-semiconductor grid leads to
The colelctor electrode that resistance R8 is crossed with triode Q1 is connected, and the base stage of triode is connected by resistance R9 and main control PMU control terminal one
Connect, triode Q1 base stage is connected to ground by resistance R10, and triode Q1 emitter stage is connected to ground.
Main control PMU VCC and SOT25 encapsulation chip power input be connected, one of main control PMU signal end with
SOT25 encapsulation chip signal input part connection, SOT25 encapsulation chip signal output part by after inductance L with preposition shooting
The power control terminal connection of head；The power input of main control PMU VCC and SOT25 encapsulation chip is connected, main control PMU's
One of signal end is connected with the signal input part of SOT25 encapsulation chips, the signal output part of SOT25 encapsulation chips and rearmounted shooting
The power control terminal connection of head.Main control PMU uses RK3288 chips.The three roads electricity of camera is mainly individually controlled by LDO
Source, LDO work is controlled by the I/O port of master control, when camera is opened, triggering I/O port output high level causes LDO works
Make, now can normally be taken pictures, video recording etc., be that power supply disconnects when closing camera, this design reaches the system of reducing
Power consumption, extend standby opportunity.
Beneficial effect：In the utility model, GPS control module and the whole network be logical/and private network part mainly passes through metal-oxide-semiconductor and three
Pole pipe carrys out controlling power circuit, GPS control module and the whole network it is logical/power supply of private network part controls by metal-oxide-semiconductor Q8001, dormancy
This power supply is closed under state, to reduce power consumption, to prevent metal-oxide-semiconductor from not exclusively turning on, triode Q8013 is added, to ensure to be
The stabilization of system work.When starting APP, just the power management module of the front and rear camera of triggering, enters to each road power supply of camera
Row power supply, is taken pictures to start camera, so does the electricity of the camera reasonably controlled, the more flexible and intelligence done, hardware
Outflow control combines, and coordinates software to control, more more convenient than traditional control.
Brief description of the drawings
Fig. 1 is the circuit diagram of GPS power control parts.
Fig. 2 be the whole network it is logical/the power control circuit figure of private network part.
Fig. 3 is front camera power control circuit figure.
Fig. 4 is rear camera power control circuit figure.
Embodiment
Hand-held PAD with low-power consumption includes main control PMU（PMU）, public network module, GPS module and preceding
Rear camera etc..Main control PMU uses RK3288 chips.RK3288 integrates multiple functions module, and each module is substantially all
It is independently-powered pattern, the power supply of each module is in check, has haveed the function that to distribute and reduce power consumption on demand,
Powered operation when needing the module to work, it is not necessary to when automatically power off, different functional modules, adjusted correspondingly according to power supply difference
Output driving ability.
Electrifying timing sequence is as shown in Table 1 and Table 2.
Table 1：PowerName is represented：Power supply title, PMU channel are represented：PMU approach, TIMER
（2ms）Represent：Time-consuming, outPutvoltage is represented：Output voltage.
Table 2：Power ON equence are electrifying timing sequence.Spec limited represent limits, and Typ is usual model
Enclose, Test Result are test result.
The content of electrifying timing sequence part is mainly reflected in system according to electrifying timing sequence to ensure the stability of system, each family
The time order and function of electrifying timing sequence is different certainly, and this is configured according to the demand of oneself.One during Power Management Design
Surely to meet otherwise electrifying timing sequence occurs deadlock, screen flash, dormancy awakening not the problems such as, this operation to whole system
It is all most important with power consumption.
PMU is controlled by master control, to complete the control to each road power supply, and upper electric priority time and time restriction etc.,
Low-power consumption is mainly reflected in the following aspects.
The whole network leads to/public network module：The mainly IO of master control come the power supply of control module, works as sim by triode and metal-oxide-semiconductor
The enabled pin of triggering control is to module for power supply when insertion, now could normal work, carry out Card Reader online, normally not plug-in card shape
State lower module is in off position, greatly reduces the power consumption of system.The whole network is logical/and private network part is shown in Figure 2, main control
PMU VCC_IO ports are connected with metal-oxide-semiconductor Q8001 source electrode, and metal-oxide-semiconductor Q8001 drain electrode is connected with the power end of public network module,
Between metal-oxide-semiconductor Q8001 source electrode and drain electrode and resistance R8110 is shown, main control PMU VCC_IO ports pass through resistance R8295
It is connected with metal-oxide-semiconductor grid, metal-oxide-semiconductor grid is connected by resistance R8214 with triode Q8013 colelctor electrode, the base stage of triode
It is connected by resistance R8294 with main control PMU control terminal one, triode Q8013 base stage is connected by resistance R8293 and ground
Connect, triode Q8013 emitter stage is connected to ground.
GPS module：Mainly the IO of master control controls the power supply of GPS module by mos pipes, when need carry out GPS or
When Differential positioning, triggering is that enabled pin is started working to module for power supply, whole locating module, carrys out normal positioning in real time.
This designs the power consumption for the system that has been greatly reduced, and physical circuit figure part GPS control module, mainly passes through MOS referring to Fig. 1
Pipe and triode carry out controlling power circuit, and GPS_D3V3 power supply is controlled by metal-oxide-semiconductor Q8001, and this electricity is closed under resting state
Source, to reduce power consumption, to prevent metal-oxide-semiconductor from not exclusively turning on, triode Q8013 is added, to ensure the stabilization of system work.
Front and rear camera：The three-way power of camera is mainly individually controlled by LDO, is controlled by the I/O port of master control
LDO work, when camera is opened, triggering I/O port output high level causes LDO to work, and now can normally be clapped
According to, video recording etc., it is that power supply disconnects when closing camera, it is this to design the power consumption for reaching the system of reducing, extend standby opportunity.
Unwanted module is not just powered, and master control RK3288 function is a lot, and the unwanted power supplies of such as HDMI, port hangs
Sky, power supply disconnect, and reduce the consumption of system.
Dormancy：Under resting state, equipment is in absolute battery saving mode, and each unwanted module can all pass through intelligent control
The power supply of system disconnects, the state in dormancy.
The power consumption of complete machine, maximum in 3.7V/5000MAH battery, normal play video, volume, brightness is most bright, Neng Goubo
Put nearly 7 hours.Standby opportunity is longer.
Claims (3)
1. a kind of hand-held PAD with low-power consumption, including main control PMU, public network module, GPS module and front and rear camera,
It is characterized in that：Main control PMU VCC_IO ports are connected with the source electrode of metal-oxide-semiconductor one, the drain electrode of metal-oxide-semiconductor one and the electricity of GPS module
Source connects, and between the source electrode of metal-oxide-semiconductor one and drain electrode and shows resistance R1, main control PMU VCC_IO ports pass through resistance R2
It is connected with metal-oxide-semiconductor grid, metal-oxide-semiconductor grid is connected by resistance R3 with triode Q1 colelctor electrode, and the base stage of triode passes through electricity
Resistance R4 is connected with main control PMU control terminal one, and triode Q1 base stage is connected to ground by resistance R5, triode Q1 transmitting
Pole is connected to ground；Main control PMU VCC_BAT ports are connected with the source electrode of metal-oxide-semiconductor two, drain electrode and the public network module of metal-oxide-semiconductor two
Power end connection, between the source electrode of metal-oxide-semiconductor two and drain electrode and show resistance R6, main control PMU VCC_ BAT ports pass through
Resistance R7 is connected with metal-oxide-semiconductor grid, and metal-oxide-semiconductor grid is connected by resistance R8 with triode Q1 colelctor electrode, the base stage of triode
It is connected by resistance R9 with main control PMU control terminal one, triode Q1 base stage is connected to ground by resistance R10, triode
Q1 emitter stage is connected to ground.
2. the hand-held PAD according to claim 1 with low-power consumption, it is characterized in that：Main control PMU VCC and SOT25
One of the power input connection, main control PMU signal end and the signal input part of SOT25 encapsulation chips for encapsulating chip connect
Connect, the signal output part of SOT25 encapsulation chips after inductance L with the power control terminal of front camera by being connected；Main control PMU
The power input of VCC and SOT25 encapsulation chip be connected, one of main control PMU signal end and SOT25 encapsulate the letter of chip
The connection of number input, the signal output part of SOT25 encapsulation chips and the power control terminal of rear camera connect.
3. the hand-held PAD according to claim 1 or 2 with low-power consumption, it is characterized in that：Main control PMU uses RK3288
Chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721147187.3U CN207198723U (en) | 2017-09-08 | 2017-09-08 | Hand-held PAD with low-power consumption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721147187.3U CN207198723U (en) | 2017-09-08 | 2017-09-08 | Hand-held PAD with low-power consumption |
Publications (1)
| Publication Number | Publication Date |
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| CN207198723U true CN207198723U (en) | 2018-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721147187.3U Active CN207198723U (en) | 2017-09-08 | 2017-09-08 | Hand-held PAD with low-power consumption |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109118627A (en) * | 2018-08-15 | 2019-01-01 | 深圳市凯迪仕智能科技有限公司 | A kind of automatic lock control circuit and control method |
-
2017
- 2017-09-08 CN CN201721147187.3U patent/CN207198723U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109118627A (en) * | 2018-08-15 | 2019-01-01 | 深圳市凯迪仕智能科技有限公司 | A kind of automatic lock control circuit and control method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191106 Address after: 450000 Building 1, Zhongxing Industrial Park, 1776 hanghai East Road, Zhengzhou Economic and Technological Development Zone, Henan Province Patentee after: Henan Hua Dao Intelligent Technology Co., Ltd. Address before: No. 1776, No. 1, Zhongxing energy saving and environmental protection industrial park, No. 1776, nautical East Road, Henan economic and Technological Development Zone, No. 1 Patentee before: Henan Huadao Technology Co. Ltd. |
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| TR01 | Transfer of patent right |