CN205986319U - Supply circuit is used at little consumption data transmission terminal - Google Patents
Supply circuit is used at little consumption data transmission terminal Download PDFInfo
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- CN205986319U CN205986319U CN201620993015.7U CN201620993015U CN205986319U CN 205986319 U CN205986319 U CN 205986319U CN 201620993015 U CN201620993015 U CN 201620993015U CN 205986319 U CN205986319 U CN 205986319U
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- power supply
- data transmission
- transmission terminal
- supply circuit
- circuit
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Abstract
The utility model discloses a supply circuit is used at little consumption data transmission terminal has solved the problem that this type of product power unit consumption is high, battery life is short. This supply circuit adopts normal supply circuit and standby supply circuit circulation power supply, and supply circuit can be switched according to self running state in the system, and wherein normal supply circuit adopts low quiescent current, low DCDC chip and the peripheral circuit design who turn -offs the electric current, and standby supply circuit adopts enhancement mode P channel MOSFET and peripheral circuit design. The utility model discloses can effectively reach sparingly electric energy, the mesh in extension power supply battery life -span.
Description
Technical field
This utility model is related to power supply field, particularly to a kind of Micro Energy Lose data transmission terminal power supply circuits.
Background technology
Development with electronic information technology and the update of mobile communication technology, current most domestic area is covered
Lid mobile communications network, this allows these areas to pass through data transmission terminal equipment by the data needing by wireless network
Upload onto the server, the method is particularly well-suited to the area that some are inconvenient to arrange wireline cable.
In the area that cannot arrange wireline cable and mains-supplied, data transmission terminal is generally battery-powered, for ensureing
The service life of equipment, human and material resources and the waste of financial resources that saving altofrequency replacing battery is brought, data transmission terminal is big
Part carries Micro Energy Lose function, and that is, mode of operation is divided into standby mode and normal mode.Under normal mode, equipment normal work,
Data is transmitted through wireless public network through collection；Under standby mode, only processor work, other modules do not work, now institute
Need electric current extremely low.
Although traditional Micro Energy Lose data transmission terminal is optimized to mode of operation, have ignored power supply portion
The power attenuation divided, what this was serious has influence on the service life of equipment and the frequency changing battery, is unfavorable for Micro Energy Lose product
Practical application.As described in patent CN201010594818.2, this patent adopts DC/DC chip to Micro Energy Lose remote transmission terminal
Power supply is although the quiescent current of this kind of design is very low, but in product holding state, the loss of DC/DC chip but can not be ignored.
Content of the invention
The purpose of this utility model is that the deficiency that prior art is existed is solved, and provides a kind of Micro Energy Lose data to pass
Defeated terminal power supply circuits, the power attenuation meaningless to reduce power pack, reach energy-conservation, power saving, improve equipment use time
With the effect reducing replacing cell frequency.
This utility model can be achieved by the following technical programs：
A kind of Micro Energy Lose data transmission terminal power supply circuits, when being in normal mode of operation including system, are that system supplies
When the normal power supply circuit of electricity and system are in standy operation mode, it is the standby power circuit of system power supply.Two kinds of power supply electricity
Road is connected to the input of power supply, and when device power, system is in normal mode of operation, now normal power supply circuit work
Make, processor exports a high level and controls standby power circuit not work；When system is from normal mode of operation to standby mode
Before switching, processor exports a low level control standby power circuit job, and exports a high level control normal power supply
Circuit does not enable and does not work.So, before equipment enters normal mode and standby mode, can be powered circuit selection and
Switching.
Described normal power supply circuit, by having low quiescent current and the little DC/DC conversion chip of own loss and its periphery
Circuit is constituted, and this conversion chip has enable foot, and when not using this chip, chip power consumption is extremely low.
Described standby power circuit, is made up of stabilivolt, enhancement mode P-channel MOSFET and its peripheral circuit, power input
End, through stabilivolt, enters metal-oxide-semiconductor grid, and metal-oxide-semiconductor drain electrode simultaneously connects power input, and metal-oxide-semiconductor source electrode obtains corresponding voltage,
This magnitude of voltage can be changed by adjusting the size of stabilivolt.
The input terminal voltage of described power supply is 12～24V, and described DC/DC conversion chip model TPS54331 is described
MOSFET model MMFT960, described stabilivolt model ZMM7V5.
When Micro Energy Lose data transmission terminal is in normal mode of operation, because of connection and the data is activation of wireless network, equipment
Required electric current is larger, and DC/DC chip is compared with linear voltage regulator (LDO) high conversion efficiency, and electric energy loss is little, now standby power electricity
The metal-oxide-semiconductor on road is closed due to the control of processor, no unnecessary kwh loss, so reducing energy consumption.
When Micro Energy Lose data transmission terminal is in standy operation mode, because processor have turned off the power supply of external circuit,
And it is in that oneself power consumption during standby mode is extremely low, therefore required electric current is extremely low, and metal-oxide-semiconductor is voltage-type element, its own electric current
Determined by the electric current in late-class circuit, thus the electric current in standby power circuit is extremely low, no significantly electric energy loss, and now
Normal power supply circuit is in not enabled state, and in the case of not enabling, this partial circuit power consumption is very low, thus can reach power saving
Purpose.
Brief description
Fig. 1 is this utility model normal power supply circuit theory diagrams.
Fig. 2 is this utility model standby power circuit theory diagrams.
Specific embodiment
Below in conjunction with the accompanying drawings embodiment of the present utility model is illustrated：
As shown in figure 1, power input enters into, through after electric capacity C36 filtering, the crus secunda that U6 is chip TPS54331,
3rd foot of U6 is chip Enable Pin, and effectively, this foot connects to an I/O port of data transmission terminal CPU acquiescence high level, by
The working condition of CPU control chip U6.After power supply acts on through chip U6 and its external circuit, obtain power supply VGPRS, this power supply can
There is provided electric energy for the mobile communication module in Micro Energy Lose data transmission terminal, VGPRS is that MBRS240 obtains electricity through diode D7
Pressure VCC, this is as the prime input power of other modules in system.
As shown in Fig. 2 power input connects the drain electrode that metal-oxide-semiconductor Q1 is MMFT960, the grid of MMFT960 is through resistance R11
It is pulled to power input and be connected with the colelctor electrode that audion Q2 is 2N5551, one 7.5V voltage stabilizing of the gate connected in parallel of Q1 simultaneously
Pipe D5.One I/O port of data transmission terminal CPU, connects to the base stage of Q3 after resistance R12, R13 partial pressure.When the output of this I/O port
During high level, Q2 turns on, and Q1 closes, the source electrode 960OUT Non voltage output of Q1；When this I/O port output low level, Q2 ends,
Q1 turns on, and the source electrode 960OUT of Q1 has voltage output, and this voltage value is subject to input supply voltage VIN, stabilivolt D5 and metal-oxide-semiconductor originally
Barrel pressure drop affects.Q1 source electrode 960OUT output voltage through diode D4 be MBRS240 obtain can as in system its
The prime input supply voltage VCC of his module.
Micro Energy Lose data transmission terminal in the normal mode of operation when, its system power supply as shown in Figure 1 circuit provide, simultaneously
I/O port through CPU controls the circuit in Fig. 2 to be closed；When Micro Energy Lose data transmission terminal is under standy operation mode,
Circuit provides its system power supply as shown in Figure 2, and the I/O port through CPU controls the circuit in Fig. 1 to be closed simultaneously.
If system be powered by normal power supply circuit always it is commonly known that the reason, itself meeting of DC/DC conversion chip
There is the loss of energy, this loss is less than the equipment energy consumption under normal mode of operation, but when system is in standby mode, this damage
Consumption is far longer than the energy consumption of system, and the stand-by time of Micro Energy Lose equipment is longer than normal working hourss, therefore this partition losses
The strong influence service life of device battery, so be powered by standby power circuit in system standby, will simultaneously
As for shutdown mode, this for the service life extending supplying cell and reduces the frequency changing battery to DC/DC conversion chip U6
There is great meaning.It is pointed out that the type selecting of chip U6 has important impact to this utility model.Normal work mould
When under formula, the unnecessary energy consumption of system power supply part is determined by the conversion efficiency of U6 and quiescent current；When under standby mode, the pass of U6
Power-off stream affects very big on system capacity.
For the analysis in system unnecessary energy consumption source under normal mode of operation and standy operation mode, we have proposed this reality
With new, reduce the system energy consumption under standby mode, extend the service life of supplying cell, save electric energy.Need
Bright is：Embodiment of above is exemplary, be for preferably make skilled artisans appreciate that this patent it is impossible to
It is not understood as this patent is included with the restriction of scope；As long as any equivalent change made of spirit according to disclosed in this patent
Or modify, each fall within the scope that this patent includes.
Claims (7)
1. a kind of Micro Energy Lose data transmission terminal power supply circuits it is characterised in that：When being in normal mode of operation including system,
When normal power supply circuit for system power supply and system are in standy operation mode, it is the standby power circuit of system power supply, two
Plant the input that power supply circuits are connected to power supply, two kinds of power supply circuits cycle power, system can be cut according to self-operating state
Change power supply circuits.
2. Micro Energy Lose data transmission terminal power supply circuits according to claim 1 it is characterised in that：Described power input
Terminal voltage is direct current 12V～24V.
3. Micro Energy Lose data transmission terminal power supply circuits according to claim 1 it is characterised in that：Described normal power supply
Circuit, by having low quiescent current and the little DC/DC conversion chip of own loss and its peripheral circuit is constituted, this conversion chip has
There is enable foot, when not enabling this chip, chip power consumption is extremely low.
4. Micro Energy Lose data transmission terminal power supply circuits according to claim 1 it is characterised in that：Described standby power
Circuit, is made up of stabilivolt, enhancement mode P-channel MOSFET and its peripheral circuit, and power input, through stabilivolt, enters metal-oxide-semiconductor
Grid, metal-oxide-semiconductor drain electrode simultaneously connects power input, and metal-oxide-semiconductor source electrode obtains corresponding voltage, and this magnitude of voltage can be steady by adjusting
The size of pressure pipe is changed.
5. Micro Energy Lose data transmission terminal power supply circuits according to claim 1 it is characterised in that：Described normal power supply
Circuit is powered with standby power circuit cycles and is controlled by the different I/O port of system CPU.
6. Micro Energy Lose data transmission terminal power supply circuits according to claim 3 it is characterised in that：Described DC/DC turns
Changing chip model is TPS54331.
7. Micro Energy Lose data transmission terminal power supply circuits according to claim 4 it is characterised in that：Described MOSFET type
Number be MMFT960.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620993015.7U CN205986319U (en) | 2016-08-29 | 2016-08-29 | Supply circuit is used at little consumption data transmission terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620993015.7U CN205986319U (en) | 2016-08-29 | 2016-08-29 | Supply circuit is used at little consumption data transmission terminal |
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| Publication Number | Publication Date |
|---|---|
| CN205986319U true CN205986319U (en) | 2017-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620993015.7U Active CN205986319U (en) | 2016-08-29 | 2016-08-29 | Supply circuit is used at little consumption data transmission terminal |
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| Country | Link |
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| CN (1) | CN205986319U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109167426A (en) * | 2018-10-19 | 2019-01-08 | 昆山嘉提信息科技有限公司 | The energy-saving circuit of medical mobile devices |
| CN112014719A (en) * | 2020-08-24 | 2020-12-01 | 南京盛科网络有限公司 | Screening method and device for mass production chip |
-
2016
- 2016-08-29 CN CN201620993015.7U patent/CN205986319U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109167426A (en) * | 2018-10-19 | 2019-01-08 | 昆山嘉提信息科技有限公司 | The energy-saving circuit of medical mobile devices |
| CN109167426B (en) * | 2018-10-19 | 2024-01-26 | 昆山嘉提信息科技有限公司 | Energy-saving circuit of medical mobile equipment |
| CN112014719A (en) * | 2020-08-24 | 2020-12-01 | 南京盛科网络有限公司 | Screening method and device for mass production chip |
| CN112014719B (en) * | 2020-08-24 | 2023-07-11 | 南京盛科通信有限公司 | Screening method and device for mass production chips |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |