CN103852646A - Series-connected battery online internal resistance instrument - Google Patents
Series-connected battery online internal resistance instrument Download PDFInfo
- Publication number
- CN103852646A CN103852646A CN201210496346.6A CN201210496346A CN103852646A CN 103852646 A CN103852646 A CN 103852646A CN 201210496346 A CN201210496346 A CN 201210496346A CN 103852646 A CN103852646 A CN 103852646A
- Authority
- CN
- China
- Prior art keywords
- chip microcomputer
- series
- amplifier
- photoelectric switch
- internal resistance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Measurement Of Resistance Or Impedance (AREA)
- Secondary Cells (AREA)
- Tests Of Electric Status Of Batteries (AREA)
Abstract
The invention relates to a series-connected battery online internal resistance instrument. A single-chip microcomputer (1) outputs a PWM, so as to control a high-power discharge MOSFET tube (5) to carry out a multi-section battery integral discharge of a series single battery (4); a response signal through a photoelectric isolation switch (3) is sequentially switched and sampled; the single-chip microcomputer (1) is connected with an input control of the photoelectric isolation switch (3); an anode of the series single battery (4) through the photoelectric isolation switch (3) is connected to an anode signal coupling capacitor (6), is then connected with a filter resistor (8), and at the same time is connected with an anode input end of an amplifier (9); an analog signal is amplified by the amplifier (9) and sent directly into an AD sampling input end of the single-chip microcontroller (1); the single chip microcomputer (1) transforms a sampling analog signal to a digital signal, so as to get an internal resistance parameter within each battery of series single battery (4); and the integral online measurement is completed.
Description
technical field:
The present invention relates to the online internal resistance instrument of a kind of series-connected cell, belong to battery performance fields of measurement.
background technology:
Current, battery applications is extensive, especially, for obtaining high voltage, uses the multiple batteries application of connecting, and in use, cell performance is larger to integral battery door performance impact, therefore needs online battery performance to be detected.
summary of the invention:
The present invention relates to the online internal resistance instrument of a kind of series-connected cell, to realize the function that aligns series-connected cell in use and carry out internal resistance detection.
For realizing above-mentioned object, the present invention adopts following technical scheme:
The online internal resistance instrument of a kind of series-connected cell, comprises:
Single-chip microcomputer (1), current-limiting resistance (2), photoelectric switch (3), series connection cell (4), high power discharge MOSFET pipe (5), positive signal coupling capacitance (6), negative signal coupling capacitance (7), filter resistance (8), amplifier (9); As shown in Figure 1.
Below in conjunction with accompanying drawing, technical construction of the present invention and method are described: single-chip microcomputer (1) output PWM, control the multiple batteries entirety electric discharge of high power discharge MOSFET pipe (5) to series connection cell (4), its response signal is by photoelectric switch (3) switch sampling successively, single-chip microcomputer (1) is connected with the input control of photoelectric switch (3), the positive pole of series connection cell (4) is switched to positive signal coupling capacitance (6) by photoelectric switch (3), receive again on filter resistance (8), access the electrode input end of amplifier (9) simultaneously, the negative pole of series connection cell (4) is switched to negative signal coupling capacitance (7) by photoelectric switch (3), receive again on filter resistance (8), access the negative input of amplifier (9) simultaneously, amplifier (9) is directly sent into the AD sampling input end of single-chip microcomputer (1) after simulating signal is amplified, transfer sampled analogue signals to digital signal by single-chip microcomputer (1), the internal resistance parameter of the every batteries in cell (4) obtains connecting, thereby complete overall on-line measurement.
Beneficial effect of the present invention: battery measurement result high conformity, easy to use.
brief description of the drawings:
Accompanying drawing 1 is structural representation of the present invention
embodiment:
In order to make technical scheme of the present invention clearer, below in conjunction with drawings and Examples, the present invention is described in more detail, and instantiation described herein only, in order to explain the present invention, is not limited to the present invention.
embodiment:
Refer to shown in accompanying drawing 1, single-chip microcomputer (1) output PWM, control the multiple batteries entirety electric discharge of high power discharge MOSFET pipe (5) to series connection cell (4), its response signal is by photoelectric switch (3) switch sampling successively, single-chip microcomputer (1) is connected with the input control of photoelectric switch (3), the positive pole of series connection cell (4) is switched to positive signal coupling capacitance (6) by photoelectric switch (3), receive again on filter resistance (8), access the electrode input end of amplifier (9) simultaneously, the negative pole of series connection cell (4) is switched to negative signal coupling capacitance (7) by photoelectric switch (3), receive again on filter resistance (8), access the negative input of amplifier (9) simultaneously, amplifier (9) is directly sent into the AD sampling input end of single-chip microcomputer (1) after simulating signal is amplified, transfer sampled analogue signals to digital signal by single-chip microcomputer (1), the internal resistance parameter of the every batteries in cell (4) obtains connecting, thereby complete overall on-line measurement.
Claims (1)
1. the online internal resistance instrument of series-connected cell, comprises: single-chip microcomputer (1), current-limiting resistance (2), photoelectric switch (3), series connection cell (4), high power discharge MOSFET pipe (5), positive signal coupling capacitance (6), negative signal coupling capacitance (7), filter resistance (8), amplifier (9), it is characterized in that: single-chip microcomputer (1) output PWM, control the multiple batteries entirety electric discharge of high power discharge MOSFET pipe (5) to series connection cell (4), its response signal is by photoelectric switch (3) switch sampling successively, single-chip microcomputer (1) is connected with the input control of photoelectric switch (3), the positive pole of series connection cell (4) is switched to positive signal coupling capacitance (6) by photoelectric switch (3), receive again on filter resistance (8), access the electrode input end of amplifier (9) simultaneously, the negative pole of series connection cell (4) is switched to negative signal coupling capacitance (7) by photoelectric switch (3), receive again on filter resistance (8), access the negative input of amplifier (9) simultaneously, amplifier (9) is directly sent into the AD sampling input end of single-chip microcomputer (1) after simulating signal is amplified, transfer sampled analogue signals to digital signal by single-chip microcomputer (1), the internal resistance parameter of the every batteries in cell (4) obtains connecting, thereby complete overall on-line measurement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210496346.6A CN103852646A (en) | 2012-11-29 | 2012-11-29 | Series-connected battery online internal resistance instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210496346.6A CN103852646A (en) | 2012-11-29 | 2012-11-29 | Series-connected battery online internal resistance instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103852646A true CN103852646A (en) | 2014-06-11 |
Family
ID=50860547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210496346.6A Pending CN103852646A (en) | 2012-11-29 | 2012-11-29 | Series-connected battery online internal resistance instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103852646A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501614A (en) * | 2016-11-25 | 2017-03-15 | 中国核动力研究设计院 | Self-powered detector insulation resistance on-line monitoring method and monitoring device |
-
2012
- 2012-11-29 CN CN201210496346.6A patent/CN103852646A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501614A (en) * | 2016-11-25 | 2017-03-15 | 中国核动力研究设计院 | Self-powered detector insulation resistance on-line monitoring method and monitoring device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107741571B (en) | Battery voltage detection circuit | |
| CN203310920U (en) | Battery insulation detection circuit and battery insulation detection device | |
| CN104734228A (en) | Solar panel measuring circuit of solar charge controller of common positive pole structure | |
| CN103063905A (en) | Single battery voltage isolation detecting system | |
| CN204495864U (en) | Resistance to voltage protection circuit | |
| CN103487630A (en) | High-end sampling battery voltage circuit | |
| CN210090544U (en) | Isolated direct current voltage sampling circuit | |
| CN103852646A (en) | Series-connected battery online internal resistance instrument | |
| CN103353566B (en) | Battery for mimic channel equipment testing circuit in place | |
| CN202929122U (en) | Online internal resistance instrument for series battery | |
| CN104931136A (en) | Wide pulse triggering-based phase-shift type high-sensitivity infrared detection system | |
| CN203732605U (en) | Battery voltage detecting circuit | |
| CN204575732U (en) | A kind of electrokinetic cell voltage sampling circuit | |
| CN204131397U (en) | A kind of input voltage detection circuit of isolating inverse-excitation type high frequency switch power | |
| CN201830235U (en) | Switching value stabilizing output circuit | |
| CN102570565A (en) | Battery charging device and method | |
| CN202421470U (en) | Single battery voltage measuring circuit in arbitrary-string battery pack | |
| CN203365525U (en) | Power grid voltage detection device | |
| CN202817797U (en) | A battery equalizer capable of transferring electric energy | |
| CN101769954A (en) | Voltage detecting circuit for multiple serial batteries | |
| CN204807617U (en) | Peak value detection circuit | |
| CN104950155B (en) | A kind of self-powered type high-precision active electric current sensor | |
| CN203396863U (en) | In-situ detection circuit for cell of analog circuit device | |
| CN204556716U (en) | A kind of heavy current electrokinetic cell high precision collecting system | |
| CN205453220U (en) | Battery management system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140611 |