CN204142930U - A kind of accumulator cell charging and discharging electric quantity monitoring table - Google Patents

A kind of accumulator cell charging and discharging electric quantity monitoring table Download PDF

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Publication number
CN204142930U
CN204142930U CN201420481407.6U CN201420481407U CN204142930U CN 204142930 U CN204142930 U CN 204142930U CN 201420481407 U CN201420481407 U CN 201420481407U CN 204142930 U CN204142930 U CN 204142930U
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chip microcomputer
signal
sampling resistor
voltage
digital converter
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CN201420481407.6U
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邵正贤
陈惠锋
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NANJING TALEN ELECTRONICS CO Ltd
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NANJING TALEN ELECTRONICS CO Ltd
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Abstract

The utility model discloses a kind of accumulator cell charging and discharging electric quantity monitoring table, be connected between supply unit and load device, comprise sampling resistor one, sampling resistor two, signal conditioning circuit, single-chip microcomputer and LED charactron; Described sampling resistor one, sampling resistor two are for gathering the signal between supply unit and load device, collection signal delivers to described single-chip microcomputer through described signal conditioning circuit, described single-chip microcomputer inside is provided with analog to digital converter, analog to digital converter and signal is converted to accessible digital signal, digital signal after single-chip microcomputer processes further, obtains electric current, voltage and electricity, and described LED charactron is for showing the result of described single-chip microcomputer.The utility model passes through Optimization Design of Electronic Circuits, utilize single-chip microcomputer to the process of sampled signal, autopolling display " electricity ", " voltage ", " electric current " three kinds of parameters, and the course of work is without the need to peripheral power supply, the real-time display of electronic equipment charging and discharging state can be realized, improve the safety coefficient of charge and discharge process.

Description

A kind of accumulator cell charging and discharging electric quantity monitoring table
Technical field
The utility model relates to discharge and recharge monitoring technical field, is specifically related to a kind of accumulator cell charging and discharging electric quantity monitoring table.
Background technology
It is exactly that electronic equipment kind and quantity get more and more that the progress of technology embodies the most intuitively, existing electronic equipment all passes through inner battery supply power, and such as cell phone, notebook computer, digital camera, personal digital assistant (PDA), motor vehicle driven by mixed power, the device of plug-in electric vehicle (PEV) and the device of other types all have rechargeable battery.But user uses in electronic equipment, i.e. charging process simultaneously in electric discharge in charging process of being everlasting, in charge and discharge process, power supply or charger or electronic equipment may break down, and cause electronic equipment to charge slowly, zero charging, negative charging, even battery explosion problem, and user is still unaware to this, because the accident caused in charge and discharge process is also of common occurrence in various reporting for work.
Although most electronic equipment can start display charging icon after insertion charger, whether battery is in real charged state, the speed of charging, the time required for charging complete all do not show, and domestic consumer also cannot know at all.Charger and battery failures and inefficacy do not differentiate means intuitively, and the security of charging process is considered.The product type for Monitoring and Controlling charge and discharge process provided in prior art is less, some products mainly utilize counnter attack circuit realiration, do not reach intelligentized level, the charge and discharge process correlation parameter that most product can provide is very few, can not meet the real-time monitoring of user to charge and discharge process.Therefore, need a kind of new charging and discharging state monitoring equipment, charging and discharging state real for electronic equipment can be informed user, make user take correct measure, optimize charging and discharging state.
Summary of the invention
Goal of the invention: in order to overcome the shortcoming of prior art, the utility model provides a kind of accumulator cell charging and discharging electric quantity monitoring table, charging and discharging state real for electronic equipment can be informed user, make user take correct measure, optimize the charging and discharging state of electronic equipment.
Technical scheme: accumulator cell charging and discharging electric quantity monitoring table described in the utility model, is connected between supply unit and load device and comprises sampling resistor one, sampling resistor two, signal conditioning circuit, single-chip microcomputer and LED charactron; Described sampling resistor one, sampling resistor two are for connecting peripheral load device and supply unit extremely described signal conditioning circuit, and described single-chip microcomputer is connected respectively with described signal conditioning circuit, described LED charactron; Described sampling resistor one, sampling resistor two are for gathering the signal between peripheral power supply device and load device, signal after collection delivers to described single-chip microcomputer through described signal conditioning circuit, described single-chip microcomputer inside is provided with analog to digital converter, signal is converted to accessible digital signal by analog to digital converter, digital signal obtains electric current, voltage and electricity after single-chip microcomputer processes further, and described LED charactron is for showing the result of described single-chip microcomputer.First show " electricity " 2 second after starting working, then show " voltage " 2 second, then show " electric current " 2 second, after continuous circulation three steps above
Described single-chip microcomputer inside forms primarily of clock circuit, central processing unit, program storage, data-carrier store, ADC analog to digital converter and input/output module, after powering on, clock circuit starts to send clock, central processing unit gets instruction from program storage according to the rhythm of clock, and be released in data storage area and carry out data processing, the needs that in program storage, instruction has external data to gather, ADC analog to digital converter can gather simulated data from outside, and convert digital signal in the adc, and be discharged into data storage area and carry out data processing.
Between peripheral supply unit and described single-chip microcomputer, be also connected with high pressure turn low-voltage circuit, for providing the working power of described single-chip microcomputer.Described high pressure turns low-voltage circuit by input capacitance, PWM controller, field effect transistor, and energy storage inductor, fly-wheel diode, output capacitance and resistance-feedback network form; During work, PWM controller exports square wave, input capacitance energy storage, between the high period of square wave, field effect transistor DS connects, input capacitance powers on and flows through field effect transistor and flow to energy storage inductor, between the low period of square wave, field effect transistor DS closes, the electric current of energy storage inductor flows to output capacitance through fly-wheel diode, output capacitance powers to the load, resistance-feedback network obtains feedback signal from output capacitance and is input to PWM controller, PWM controller according to the dutycycle of the size adjustment square wave of feedback signal, thus reaches regulation output voltage object.
Described sampling resistor one is for gathering current signal, and described sampling resistor two is for gathering voltage signal.
The primary current that every 0.1 second of described single-chip microcomputer gathers, by the current summation gathered in a hour, obtains electricity.Beneficial effect: compared with prior art, advantage of the present utility model:
1, by the analog to digital converter sampled current signals that single-chip microcomputer is built-in, an integration can be carried out to charging current and discharge current, obtain and show charge capacity and discharge electricity amount.
2, by internal high-voltage change-over circuit, can use without the need to external power supply.
3, the utility model autopolling can show " electricity ", " voltage ", " electric current " these three kinds of parameters, the real-time status of electronic equipment discharge and recharge two processes is informed user, improves the safety coefficient of charge and discharge process.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below by accompanying drawing, technical solutions of the utility model are described in detail, but protection domain of the present utility model is not limited to described embodiment.
embodiment 1:accumulator cell charging and discharging electric quantity monitoring table as shown in Figure 1, be connected with load device with the supply unit of periphery during use, primary structure comprise sampling resistor one, sampling resistor two, high pressure turn low-voltage circuit, the built-in and LED charactron of signal conditioning circuit, single-chip microcomputer; Sampling resistor one, sampling resistor two are connected with peripheral load device, supply unit, signal conditioning circuit is connected with sampling resistor one, sampling resistor two, single-chip microcomputer is connected respectively with signal conditioning circuit, LED charactron, and high pressure turns low-voltage circuit and is connected between peripheral power supply device and single-chip microcomputer; Sampling resistor one, sampling resistor two are for gathering the signal between peripheral power supply device and load device, signal after collection delivers to single-chip microcomputer through signal conditioning circuit, single-chip microcomputer inside is provided with analog to digital converter, analog to digital converter and signal is converted to accessible digital signal, digital signal after single-chip microcomputer processes further, obtains electric current, voltage and electricity, LED charactron is for showing the result of single-chip microcomputer, and the working power of single-chip microcomputer is turned after low-voltage circuit is changed peripheral supply unit by high pressure to be provided.
When charging measurement, supply unit is charger, and load device is battery; Charger is connected with battery by sampling resistor, signal conditioning circuit obtains charging current by sampling resistor and delivers to single-chip microcomputer, single-chip microcomputer converts analog current signal to digital current signal by built-in analog to digital converter, single-chip microcomputer is by electric current model and duration of charging integration, obtain electricity, and by LED numeral method out.Charging voltage is also shown on LED charactron by the above-mentioned same method of sampling resistor 2 in addition.
When discharge test, supply unit is battery, and load device is electronic load; Battery is connected with electronic load by sampling resistor, signal conditioning circuit obtains charging current by sampling resistor and delivers to single-chip microcomputer, single-chip microcomputer converts analog current signal to digital current signal by built-in analog to digital converter, single-chip microcomputer by electric current model and discharge time integration, obtain electricity, and by LED numeral method out.Charging voltage is also shown on LED charactron by above-mentioned same method in addition.
As mentioned above, although represented with reference to specific preferred embodiment and described the utility model, it shall not be construed as the restriction to the utility model self.Under the spirit and scope prerequisite of the present utility model not departing from claims definition, various change can be made in the form and details to it.

Claims (5)

1. an accumulator cell charging and discharging electric quantity monitoring table, is connected between supply unit and load device, it is characterized in that: comprise sampling resistor one, sampling resistor two, signal conditioning circuit, single-chip microcomputer and LED charactron; Described sampling resistor one, sampling resistor two are for connecting peripheral load device and supply unit extremely described signal conditioning circuit, and described single-chip microcomputer is connected respectively with described signal conditioning circuit, described LED charactron; Described sampling resistor one, sampling resistor two are for gathering the signal between peripheral power supply device and load device, signal after collection delivers to described single-chip microcomputer through described signal conditioning circuit, described single-chip microcomputer inside is provided with analog to digital converter, signal is converted to accessible digital signal by analog to digital converter, digital signal obtains electric current, voltage and electricity after single-chip microcomputer processes further, and described LED charactron is for showing the result of described single-chip microcomputer.
2. accumulator cell charging and discharging electric quantity monitoring table according to claim 1, is characterized in that: described single-chip microcomputer comprises clock circuit, central processing unit, program storage, data-carrier store, ADC analog to digital converter and input/output module; After powering on, described clock circuit starts to send clock, described central processing unit gets instruction from described program storage according to the rhythm of clock, and be released in described data storage area and carry out data processing, the needs that in described program storage, instruction has external data to gather, described ADC analog to digital converter can gather simulated data from outside, and convert digital signal in described ADC analog to digital converter, and be discharged into described data storage area and carry out data processing.
3. accumulator cell charging and discharging electric quantity monitoring table according to claim 1, it is characterized in that: also comprise high pressure and turn low-voltage circuit, described high pressure turns low-voltage circuit and is connected between peripheral power supply device and described single-chip microcomputer, for providing the working power of described single-chip microcomputer, described high pressure turns low-voltage circuit by input capacitance, PWM controller, field effect transistor, and energy storage inductor, fly-wheel diode, output capacitance and resistance-feedback network form, described PWM controller exports square wave, described input capacitance energy storage, between the high period of square wave, described field effect transistor DS connects, described input capacitance powers on and flows through described field effect transistor and flow to described energy storage inductor, between the low period of square wave, described field effect transistor DS closes, the electric current of described energy storage inductor flows to described output capacitance through described fly-wheel diode, described output capacitance powers to the load, described resistance-feedback network obtains feedback signal from described output capacitance and is input to described PWM controller, described PWM controller is according to the dutycycle of the size adjustment square wave of feedback signal, thus regulation output voltage.
4. accumulator cell charging and discharging electric quantity monitoring table according to claim 1, is characterized in that: described sampling resistor one is for gathering current signal, and described sampling resistor two is for gathering voltage signal.
5. accumulator cell charging and discharging electric quantity monitoring table according to claim 1, is characterized in that: the primary current that every 0.1 second of described single-chip microcomputer gathers, and by the current summation gathered in a hour, obtains electricity.
CN201420481407.6U 2014-08-25 2014-08-25 A kind of accumulator cell charging and discharging electric quantity monitoring table Active CN204142930U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106405432A (en) * 2016-11-04 2017-02-15 优利德科技(中国)有限公司 Multi-state battery power monitoring method and monitoring instrument
CN110927583A (en) * 2019-12-03 2020-03-27 深圳宝龙达信创科技股份有限公司 Battery power detection device and battery power test method
CN112600558A (en) * 2020-12-22 2021-04-02 江苏金帆电源科技有限公司 Analog-to-digital conversion linearity correction method and device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106405432A (en) * 2016-11-04 2017-02-15 优利德科技(中国)有限公司 Multi-state battery power monitoring method and monitoring instrument
CN110927583A (en) * 2019-12-03 2020-03-27 深圳宝龙达信创科技股份有限公司 Battery power detection device and battery power test method
CN112600558A (en) * 2020-12-22 2021-04-02 江苏金帆电源科技有限公司 Analog-to-digital conversion linearity correction method and device

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