CN204886324U - Power management and battery indicator system - Google Patents

Power management and battery indicator system Download PDF

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Publication number
CN204886324U
CN204886324U CN201520655261.7U CN201520655261U CN204886324U CN 204886324 U CN204886324 U CN 204886324U CN 201520655261 U CN201520655261 U CN 201520655261U CN 204886324 U CN204886324 U CN 204886324U
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China
Prior art keywords
battery
port
module
power
electric
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CN201520655261.7U
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Chinese (zh)
Inventor
刘志英
郭晓澎
周晓旭
杨莹
张佳鹏
曹桂芳
白磊
邵利军
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Shanxi branch energy saving environmental protection technology Co., Ltd.
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Shanxi Province Transport Science Research Institute
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

The utility model relates to a power management and battery indicator system. It includes switching of power module, charging management module, button module and singlechip, the switching of power module includes direct current charging source interface, battery supply interface and STAT port, charging management module includes direct current charging source interface, CHRG control port and STDBY port, the button module includes KEY port and CONTROL port, the singlechip is equipped with and the corresponding IO port of above -mentioned all ports, and it still includes power indicator and quantity indicating lamp. Compared with the prior art, the utility model discloses can be at the current battery power of the accurate effectual demonstration of difference under two kinds of modes of DC power supply power supply and battery supply power supply to consider battery power's durability simultaneously, make the function of equipment reach high -efficient stable level, have very high using value in the aspect of embedded electronic equipment.

Description

A kind of power management and electric quantity display system
Technical field
The utility model belongs to technical field of power management, specifically, relates to a kind of power management and electric quantity display system.
Background technology
The electric power generating composition that EMBEDDED AVIONICS is general is: can install battery, and the electric energy directly using this battery to provide carries out work, also can install the interface connector that can power and normally work power supply to equipment as D. C. power connector etc. draws electric energy.Consider the factor of the aspect such as economy, environmental protection, the application of battery gets more and more, one of power management key technology becoming portable electronic product of battery, and rechargeable battery is due to its advantage in economy and environmental protection, consequence is occupied in electronic equipment power source is selected, great majority can be taken EMBEDDED AVIONICS and use rechargeable battery, and compared to rechargeable batteries such as traditional nickel-cadmium cell and Ni-MH batteries, lithium ion battery, owing to providing larger discharging current and almost not having memory effect, makes its application in the electronic device more and more general.And to needing the electronic equipment carrying out work in industry spot, due to scene lacks can for the DC power supply of charging at any time, therefore understand battery electric quantity situation real-time and accurately and effectively inerrably in-site measurement is carried out to electronic equipment be significant.
Can take EMBEDDED AVIONICS because of its volume little, shell mechanism compacts, therefore to require on panel that indicator light layout is succinct neat and can effectively indicating equipment running status and current battery charge state, consider the persistence of battery electric quantity simultaneously, electronic equipment is under access DC power supply carries out charging and start shooting work two states, the pattern of carrying out electricity display is different, access DC power supply is carried out in charging process, and equipment battery capacity indication lamp under not switch on condition continues to light display battery real time electrical quantity and charged state; And under start normal operating conditions, in order to reduce battery electric quantity power consumption, just only pressing singly-bound when battery electric quantity checked by needs shows electricity, and namely extinguish battery capacity indication lamp after a certain time.For different operating occasion and situation, need the switching that electronic equipment can carry out between direct current supply and battery power, for late-class circuit provides the operating voltage of needs.
Summary of the invention
For solving the problems of the technologies described above, the utility model provides a kind of intelligentized power management and electric quantity display system.
A kind of power management described in the utility model and electric quantity display system, described power management and electric quantity display system comprise electrical source exchange module 1, charge management module 2, key-press module 3 and single-chip microcomputer 4; Described electrical source exchange module 1 comprises DC charging power supply interface, battery supply interface and STAT port; Described charge management module 2 comprises DC charging power supply interface, CHRG control port and STDBY port; Described key-press module 3 comprises KEY port and CONTROL port; Described single-chip microcomputer 4 is provided with the I/O port corresponding to above-mentioned all of the port, and it also comprises power supply indicator and battery capacity indication lamp.
A kind of power management described in the utility model and electric quantity display system, described electrical source exchange module 1 adopts LTC4411 cake core.
A kind of power management described in the utility model and electric quantity display system, described charge management module 2 adopts TP4056 cake core.
A kind of power management described in the utility model and electric quantity display system, described battery capacity indication lamp contains 4 LED, four the electricity intervals of this LED number of lights respectively residing for corresponding battery: lower than 3.4v, 3.4v-3.8v, 3.8v-4.2v and battery full state.
Compared with prior art, power management described in the utility model and electric quantity display system can show current battery charge accurately and effectively respectively under DC power supply and battery power two kinds of patterns, and consider the durability of battery electric quantity simultaneously, under start operating state, just carry out electricity display when battery electric quantity checked by needs and extinguish battery capacity indication lamp after a certain time, then for continuing display battery electric quantity and charging voltage situation in DC charging process, and can key circuit be coordinated, charge management circuit etc., corresponding action is accurately carried out by microprocessor detect corresponding port level state, the running of equipment is made to reach the level of efficient stable, therefore, there is very high using value in EMBEDDED AVIONICS.
Accompanying drawing explanation
Fig. 1: power supply switch circuit schematic diagram; Fig. 2: charge management circuit schematic diagram; Fig. 3: key circuit schematic diagram; Fig. 4: single chip circuit schematic diagram; Electrical source exchange module-1, charge management module-2, key-press module-3, single-chip microcomputer-4.
Embodiment
Below in conjunction with specific embodiment, power management described in the utility model and electric quantity display system are described further, but protection range of the present utility model is not limited to this.
Embodiment 1
A kind of power management and electric quantity display system, described power management and electric quantity display system comprise electrical source exchange module 1, charge management module 2, key-press module 3 and single-chip microcomputer 4; Described electrical source exchange module 1 comprises DC charging power supply interface, battery supply interface and STAT port; Described charge management module 2 comprises DC charging power supply interface, CHRG control port and STDBY port; Described key-press module 3 comprises KEY port and CONTROL port; Described single-chip microcomputer 4 is provided with the I/O port corresponding to above-mentioned all of the port, and it also comprises power supply indicator and battery capacity indication lamp.Described electrical source exchange module 1 adopts LTC4411 cake core.Described charge management module 2 adopts TP4056 cake core.Described battery capacity indication lamp contains 4 LED, four the electricity intervals of this LED number of lights respectively residing for corresponding battery: lower than 3.4v, 3.4v-3.8v, 3.8v-4.2v and battery full state.
The charging course of work is: after inserting DC charging power supply, control by charging signals CHRG, battery enters charged state, first for trickle charge, namely charging current enters constant current charge state after reaching certain value, is charged to after cell voltage reaches maximum 4.2v, namely constant voltage charge process is entered, constant voltage charge process terminates, and after battery is full of, the STDBY end of TP4056 provides a low level signal BatteryFull.
Electricity display operation principle is: access DC charging power supply, and battery carries out in the process of charging, 4 four the electricity intervals of LED number of lights respectively residing for corresponding battery: lower than 3.4v, 3.4v-3.8v, 3.8v-4.2v and battery full state.When being charged to the magnitude of voltage arbitrarily lower than 4.2v, lower than the indicator light between this voltage region for continuing illuminating state, the corresponding interval indicator light of this magnitude of voltage is blink states; Charge to after cell voltage reaches 4.2v, all light lower than the interval corresponding indicator light of 3.4v, 3.4v-3.8v and 3.8v-4.2v tri-, indicator light corresponding to battery full state is blink states, battery enters constant voltage charge process, after constant voltage charge completes, 4 LED are all illuminating state, battery charging complete.When accessing without DC charging power supply, 4 corresponding four electricity intervals residing for battery of LED number of lights are respectively: lower than 3.4v, 3.4v-3.7v, 3.7v-4.0v and 4.0v-4.2v.During button start, corresponding battery capacity indication lamp is lighted, and extinguishes after 2s; During button shutdown, corresponding battery capacity indication lamp is first lighted, and after circuit disconnects, battery capacity indication lamp extinguishes thereupon.
The electricity display course of work is: when access DC power supply is charged, the STAT end of the module chip of electrical source exchange shown in Fig. 1 LTC4411 provides a low level POWER, the corresponding I/O Port detecting of single-chip microcomputer shown in Fig. 4 is after this low level, be connected with battery supply positive pole VBATT, the corresponding I/O port with ADC function carries out AD collection to cell voltage, and the voltage range indicated by the magnitude of voltage be converted to and 4 LED is compared, be lit lower than the indicator light between this voltage region, and for continuing illuminating state, to should the indicator light between voltage region be blink states.After cell voltage is charged to 4.2v, namely constant voltage charge state is entered, LED light corresponding to battery full state is blink states, other 3 LED are for continuing illuminating state, until constant voltage charge completes, after battery is full of, now, the STDBY end of the TP4056 of charging management chip shown in Fig. 2 provides low level BatteryFull, after the corresponding I/O mouth of single-chip microcomputer detects this low level signal, corresponding for battery full state LED also lighted, namely electric quantity display circuit 4 LED are all illuminating state, complete whole charging process.Access without DC charging power supply, the STAT end of the module of electrical source exchange shown in Fig. 1 is high level POWER state, after microprocessor detect to this high level signal, enter and wait for actuation of keys program, short in when starting shooting, the KEY end of key circuit shown in Fig. 3 provides a low level, CONTROL end becomes high level simultaneously, after microprocessor detect holds high level to this CONTROL, light power supply indicator, show that circuit is connected, and then after microprocessor detect to KEY end low level signal, be connected by holding with anode VBATT, the I/O port with ADC function carries out AD collection to cell voltage, and is compared in the electricity interval representated by the magnitude of voltage be converted to and four LED, the indicator light of the corresponding number of current battery level value is lit, the timer conter of single-chip microcomputer starts timing simultaneously, battery capacity indication lamp is extinguished after timing to 2s, single-chip microcomputer starts to wait for actuation of keys next time.Equipment is in the process of normal work, any time pushes button, KEY end all can provide a low level, single-chip microcomputer is according to this low level signal detected, be connected by holding with anode VBATT equally, the I/O port with ADC function carries out AD collection to cell voltage, and is lighted by the indicator light of number corresponding to the magnitude of voltage be converted to, and extinguishes battery capacity indication lamp after timing to 2s.During button shutdown, first KEY end can provide a low level signal, therefore single-chip microcomputer first carries out battery electric quantity collection according to this low level signal detected and the action of display, and then CONTROL end becomes low level, after microprocessor detect holds this low level signal to CONTROL, extinguished by power supply indicator, circuit disconnects, battery capacity indication lamp also extinguishes thereupon, completes button shutdown action.

Claims (4)

1. a power management and electric quantity display system, it is characterized in that, described power management and electric quantity display system comprise electrical source exchange module (1), charge management module (2), key-press module (3) and single-chip microcomputer (4); Described electrical source exchange module (1) comprises DC charging power supply interface, battery supply interface and STAT port; Described charge management module (2) comprises DC charging power supply interface, CHRG control port and STDBY port; Described key-press module (3) comprises KEY port and CONTROL port; Described single-chip microcomputer (4) is provided with the I/O port corresponding to above-mentioned all of the port, and it also comprises power supply indicator and battery capacity indication lamp.
2. a kind of power management according to claim 1 and electric quantity display system, is characterized in that, described electrical source exchange module (1) adopts LTC4411 cake core.
3. a kind of power management according to claim 1 and electric quantity display system, is characterized in that, described charge management module (2) adopts TP4056 cake core.
4. a kind of power management according to claim 1 and electric quantity display system, it is characterized in that, described battery capacity indication lamp contains 4 LED, four the electricity intervals of this LED number of lights respectively residing for corresponding battery: lower than 3.4v, 3.4v-3.8v, 3.8v-4.2v and battery full state.
CN201520655261.7U 2015-08-27 2015-08-27 Power management and battery indicator system Active CN204886324U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201520655261.7U CN204886324U (en) 2015-08-27 2015-08-27 Power management and battery indicator system

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107396489A (en) * 2017-07-12 2017-11-24 成都芯源系统有限公司 A kind of LED indicating circuit
CN107677967A (en) * 2017-09-29 2018-02-09 北京三快在线科技有限公司 Determine the method and device of battery electric quantity

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107396489A (en) * 2017-07-12 2017-11-24 成都芯源系统有限公司 A kind of LED indicating circuit
CN107677967A (en) * 2017-09-29 2018-02-09 北京三快在线科技有限公司 Determine the method and device of battery electric quantity

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GR01 Patent grant
CB03 Change of inventor or designer information
TR01 Transfer of patent right
CB03 Change of inventor or designer information

Inventor after: Liu Zhiying

Inventor after: Luo Kai

Inventor after: Fu Wenbiao

Inventor after: Guo Xiaopeng

Inventor after: Zhou Xiaoxu

Inventor after: Yang Ying

Inventor after: Zhang Jiapeng

Inventor after: Cao Guifang

Inventor after: Bai Lei

Inventor after: Shao Lijun

Inventor after: Liu Wenhui

Inventor before: Liu Zhiying

Inventor before: Guo Xiaopeng

Inventor before: Zhou Xiaoxu

Inventor before: Yang Ying

Inventor before: Zhang Jiapeng

Inventor before: Cao Guifang

Inventor before: Bai Lei

Inventor before: Shao Lijun

TR01 Transfer of patent right

Effective date of registration: 20170504

Address after: 030006, Shanxi Province, Taiyuan City, Xiaodian District, 79 street, building 4

Patentee after: Shanxi branch energy saving environmental protection technology Co., Ltd.

Address before: 030006 Taiyuan, Xiaodian District, Shanxi city street, No. 79

Patentee before: Shanxi Province Transport Science Research Institute