CN204595053U - Novel battery voltage detecting system - Google Patents
Novel battery voltage detecting system Download PDFInfo
- Publication number
- CN204595053U CN204595053U CN201520009950.0U CN201520009950U CN204595053U CN 204595053 U CN204595053 U CN 204595053U CN 201520009950 U CN201520009950 U CN 201520009950U CN 204595053 U CN204595053 U CN 204595053U
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- circuit
- voltage
- generating
- voltage detection
- detection
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Abstract
The utility model provides a kind of novel battery detection system, comprises external voltage detection circuit, core processor, voltage display screen.Wherein external voltage detection circuit comprises, and square wave circuit for generating, circuit for generating triangular wave, compares output circuit.During the utility model battery voltage detection systems axiol-ogy cell voltage, the interference of high-frequency signal to its result can be overcome, during detection, ADC chip need not be used, corresponding time its voltage corresponding will be detected, be tim e-domain detection by amplitude domain change detected, functional reliability is higher.
Description
Technical field
Utility model belongs to power technique fields, particularly a kind of battery voltage detection system.
Background technology
Along with the development of electronic product, most electronic product adopts TunePower as power supply.In order to increase the serviceable life of battery, the voltage of battery voltage detection circuit to battery is adopted to detect and manage the discharge and recharge of battery.
In prior art, battery port is directly accessed the power management module part of chip for cell phone by cell voltage ADC (analog to digital conversion) testing circuit, the current voltage value of mobile phone is converted to input handset chip after digital signal by ADC conversion, and by chip for cell phone, the voltage digital signal obtained judged.If described voltage digital signal is lower than the automatic shutdown voltage limit of mobile phone, then chip for cell phone can control to carry out shutdown process to mobile phone.As shown in Figure 1, the detection position of represented by dotted arrows ADC voltage detecting, just detect that the frequency due to mobile phone 217Hz launches the pole low signal caused at t1 moment ADC voltage detecting point, then can report this pole low-voltage to chip for cell phone and make chip for cell phone make the mistake judgement of shutdown ahead of time.Existing ADC voltage detecting is easily subject to the interference of high-frequency signal and the low-voltage signal detected is reported chip for cell phone, and mobile phone is shut down in advance.
Summary of the invention
The purpose of this utility model is to provide a kind of battery voltage detection system, to solve the problem.
Technical solutions of the utility model are, provide a kind of battery voltage detection system, comprise external voltage detection circuit, core processor, voltage display screen.Described external voltage detection circuit comprises, square wave circuit for generating, circuit for generating triangular wave and compare output circuit, described square wave circuit for generating is made up of resistance R2 and electric capacity C2, one end of R2 is connected with C2, the other end is connected with the R7 of circuit for generating triangular wave, described circuit for generating triangular wave is made up of resistance R7 and electric capacity C1, and one end of R7 is connected with R2, and the other end is connected with the negative pole comparing output circuit.
The utility model compared with prior art, has the following advantages:
During the utility model battery voltage detection systems axiol-ogy cell voltage, overcome the interference of high-frequency signal to its result, need not use ADC chip during detection, will detect corresponding time its voltage corresponding, be tim e-domain detection by amplitude domain change detected, functional reliability is higher.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of prior art battery voltage detection circuit.
Fig. 2 is the circuit theory diagrams of the utility model battery voltage detection circuit.
Fig. 3 is the schematic diagram of the utility model battery voltage detection system.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 2, battery voltage detection system of the present utility model, comprises external voltage detection circuit, core processor, voltage display screen.Described external voltage detection circuit comprises, square wave circuit for generating, and circuit for generating triangular wave, compares output circuit.Square wave circuit for generating is made up of resistance R2 and electric capacity C2, and one end of R2 is connected with C2, and the other end is connected with the R7 of circuit for generating triangular wave.Circuit for generating triangular wave is made up of resistance R7 and electric capacity C1, and one end of R7 is connected with R2, and the other end is connected with the negative pole comparing output circuit.
Wherein square wave circuit for generating is produced by integrated circuit, its frequency is determined by resistance R2 and electric capacity C2, triangular wave determined by the square wave of R7, C1 and input, to the triangular wave of energy be formed compared with the linear dividing potential drop of external voltage, form square-wave signal eventually through light lotus root, then go out its high electricity time frequently by microprocessor detect, the high electricity time frequently can form linear relationship with its external input voltage, just can the voltage of correspondence be presented on liquid crystal display according to the time, as shown in Figure 3.
Claims (1)
1. a novel battery detection system, it is characterized in that, comprise external voltage detection circuit, core processor, voltage display screen, described external voltage detection circuit comprises, square wave circuit for generating, circuit for generating triangular wave and compare output circuit, described square wave circuit for generating is made up of resistance R2 and electric capacity C2, one end of R2 is connected with C2, and the other end is connected with the R7 of circuit for generating triangular wave, and described circuit for generating triangular wave is made up of resistance R7 and electric capacity C1, one end of R7 is connected with R2, and the other end is connected with the negative pole comparing output circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520009950.0U CN204595053U (en) | 2015-01-08 | 2015-01-08 | Novel battery voltage detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520009950.0U CN204595053U (en) | 2015-01-08 | 2015-01-08 | Novel battery voltage detecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204595053U true CN204595053U (en) | 2015-08-26 |
Family
ID=53931198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520009950.0U Expired - Fee Related CN204595053U (en) | 2015-01-08 | 2015-01-08 | Novel battery voltage detecting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204595053U (en) |
-
2015
- 2015-01-08 CN CN201520009950.0U patent/CN204595053U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Novel battery voltage detecting system Effective date of registration: 20160226 Granted publication date: 20150826 Pledgee: Xi'an investment and financing Company limited by guarantee Pledgor: SHAANXI ALRIGHT ELECTRIC Co.,Ltd. Registration number: 2016980000012 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20170316 Granted publication date: 20150826 Pledgee: Xi'an investment and financing Company limited by guarantee Pledgor: SHAANXI ALRIGHT ELECTRIC Co.,Ltd. Registration number: 2016980000012 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Novel battery voltage detecting system Effective date of registration: 20190909 Granted publication date: 20150826 Pledgee: Xi'an investment and financing Company limited by guarantee Pledgor: SHAANXI ALRIGHT ELECTRIC Co.,Ltd. Registration number: Y2019980000127 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20211020 Granted publication date: 20150826 Pledgee: Xi'an investment and financing Company limited by guarantee Pledgor: SHAANXI ALRIGHT ELECTRIC Co.,Ltd. Registration number: Y2019980000127 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20220108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |