CN202634271U - Low-noise, wide-range and high-current battery simulation device - Google Patents
Low-noise, wide-range and high-current battery simulation device Download PDFInfo
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- CN202634271U CN202634271U CN 201220251845 CN201220251845U CN202634271U CN 202634271 U CN202634271 U CN 202634271U CN 201220251845 CN201220251845 CN 201220251845 CN 201220251845 U CN201220251845 U CN 201220251845U CN 202634271 U CN202634271 U CN 202634271U
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Abstract
The utility model discloses a low-noise, wide-range and high-current battery simulation device, which comprises an intelligent control module, a power adapter, a direct-current/direct-current module, a plurality of low drop outs (LDOs) and an adjustable resistor, wherein the power adapter supplies 12V power into the DC/DC module; the DC/DC module divides 5V voltage from the 12V voltage supplied by the power adapter into several paths and respectively outputs the paths into the input ends of the LDOs; the LDOs are LT3080 for outputting simulated battery voltage and current; the adjustable resistor is a DS1806 digital potentiometer, serves as a feedback resistor for each LDO and is used for adjusting the output voltage of each LDO; and the intelligent control module is an MSP430F5438 chip and is used for controlling adjustment of the adjustable resistor. The low-noise, wide-range and high-current battery simulation device can simulate discharging of a battery, has the characteristics of wide dynamic range, low noise, digital fine adjustment, multi-path output and the like and can be configured flexibly according to a requirement.
Description
Technical field
The utility model relates to the multichannel simulator of a kind of low noise, wide region, great current cell.
Background technology
In the process of low-power consumption sensor network appliance exploitation, is badly in need of a kind ofly replacing battery, and power supply that can the simulated battery discharge, this power supply must possess wide dynamic range, low noise, digital trimming, multichannel output also can be according to characteristics such as demand flexible configuration.The many modules with DC/DC of in the market multichannel output regulated power supply module are main, the contact power module of LINEAGE POWER etc. of unifying like Shanghai English.As everyone knows, adopting the benefit of DC/DC design is exactly the conversion efficiency height, and big electric current can be provided, but the output interference is bigger, and volume is also relatively large; Can suppress ripple if adopt LDO (low pressure difference linear voltage regulator) to make output stage, reduce the circuit volume, but output current be little.If more than two kinds of schemes also want Adjustable Output Voltage many be main (resistance needs very accurate, unconventional resistance) with the fixed resistance, adjustable extent is also less.Picture LP3906SQ is also arranged at present, and the insides such as LM26480 have two-way DC/DC, the little packaging power chip of two-way LDO; Its LDO maximum can only provide 300mA, and LM26480 output also is to transfer with resistance, and LP3906SQ output can be transferred by the IIC mouth; The minimum 50mV stepping of BUCK1, LDO minimum step 100mV.Discrete device LDO will realize the adjustable feedback resistance R that generally removes to regulate LDO with digital regulation resistance of output voltage numeral; Consider the characteristics of digital regulation resistance; Electric current that itself can bear (several mA) and voltage are limited; Therefore, general LDO is if realization 1A left and right sides electric current is exported, and adjustable potentiometer is selected relatively difficulty.
Summary of the invention
The utility model purpose is to provide to prior art the multichannel battery emulation apparatus of a kind of low noise, wide region, voltage adjustable great current.
The utility model adopts following technical scheme for realizing above-mentioned purpose:
The multichannel battery emulation apparatus of a kind of low noise, wide region, big electric current, it is characterized in that: it comprises intelligent control module, power supply adaptor, DC/DC module, a plurality of low pressure difference linear voltage regulator and adjustable resistance; Said power supply adaptor provides the 12V power supply to be input to the DC/DC module; Said DC/DC module provides 12V voltage output 5V voltage to be divided into the input that several roads branch is clipped to each low pressure difference linear voltage regulator power supply adaptor; Said low pressure difference linear voltage regulator is cell voltage and the electric current that LT3080 is used to export simulation; Said adjustable resistance is the feedback resistance of DS1806 digital regulation resistance as each low pressure difference linear voltage regulator, is used to adjust the output voltage of each low pressure difference linear voltage regulator; Said intelligent control module is used to control the adjustment of adjustable resistance for the MSP430F5438 chip.
It is further characterized in that: said adjustable resistance can a plurality of series connection or the series connection fixed resistance, improve the resistance of feedback resistance.
Further: said device can improve output current through a plurality of low pressure difference linear voltage regulator parallel connections.
The utility model provides the power supply of a kind of simulated battery discharge, possesses wide dynamic range, low noise, digital trimming, multichannel output and can be according to characteristics such as demand flexible configuration.
Description of drawings
Fig. 1 is the utility model sketch map;
Fig. 2 is two LT3080 chip parallel circuits figure.
Embodiment
The multichannel simulator of a kind of low noise as shown in Figure 1, wide region, great current cell, it comprises intelligent control module, power supply adaptor, DC/DC module, a plurality of low pressure difference linear voltage regulator and adjustable resistance; Said power supply adaptor provides the 12V power supply to be input to the DC/DC module; Said DC/DC module provides 12V voltage output 5V voltage to be divided into the input that several roads branch is clipped to each low pressure difference linear voltage regulator power supply adaptor; Said low pressure difference linear voltage regulator is cell voltage and the electric current that LT3080 is used to export simulation; Said adjustable resistance is the feedback resistance of DS1806 digital regulation resistance as each low pressure difference linear voltage regulator, is used to adjust the output voltage of each low pressure difference linear voltage regulator; Said intelligent control module is used to control the adjustment of adjustable resistance for the MSP430F5438 chip.
DS1806 is 6 passages, and is digital control, the adjustable digital regulation resistance of solid-state linearity, and each passage maximum resistance 100K has 64 scalable taps, that is to say minimum step 100K/64 Europe.Can connect according to actual needs and to use or the series connection fixed resistance, maximum adjustable resistance can increase like this.Said device can also as shown in Figure 2ly improve output current through a plurality of low pressure difference linear voltage regulator parallel connections.
The LT3080 characteristics are LDO of single resistance adjustable output voltage; Maximum output current 1.1A; Output can be as shown in Figure 2 and be connect bigger electric current to be provided, low output noise (40uVrms), low pressure differential (300mV); The computing formula Vout=Rset*10uA of output voltage, this scheme can make current doubles.
The analog-to-digital conversion mouth of MSP430F5438 capable of using forms feedback loop so that proofread and correct to the output level supervision of sampling, and makes the voltage of output more accurate.
The LCD display interface be can increase and each road actual voltage value and preset value shown in real time.
Can increase button input and trigger and control the command control word that sends among the DS1806, with the resistance value of minimum step fine setting DS1806.
Claims (3)
1. a low noise, wide region, big current multi-way battery emulation apparatus, it is characterized in that: it comprises intelligent control module, power supply adaptor, DC/DC module, a plurality of low pressure difference linear voltage regulator and adjustable resistance;
Said power supply adaptor provides the 12V power supply to be input to the DC/DC module;
Said DC/DC module provides 12V voltage output 5V voltage to be divided into the input that several roads branch is clipped to each low pressure difference linear voltage regulator power supply adaptor;
Said low pressure difference linear voltage regulator is cell voltage and the electric current that LT3080 is used to export simulation;
Said adjustable resistance is the feedback resistance of DS1806 digital regulation resistance as each low pressure difference linear voltage regulator, is used to adjust the output voltage of each low pressure difference linear voltage regulator;
Said intelligent control module is used to control the adjustment of adjustable resistance for the MSP430F5438 chip.
2. a kind of low noise according to claim 1, wide region, big current multi-way battery emulation apparatus is characterized in that: said adjustable resistance can a plurality of tap series connection or the outside resistance that increases fixed resistance with the raising feedback resistance.
3. a kind of low noise according to claim 1, wide region, big current multi-way battery emulation apparatus is characterized in that: said low pressure difference linear voltage regulator parallel connection is used to improve output current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220251845 CN202634271U (en) | 2012-05-30 | 2012-05-30 | Low-noise, wide-range and high-current battery simulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220251845 CN202634271U (en) | 2012-05-30 | 2012-05-30 | Low-noise, wide-range and high-current battery simulation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202634271U true CN202634271U (en) | 2012-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220251845 Expired - Fee Related CN202634271U (en) | 2012-05-30 | 2012-05-30 | Low-noise, wide-range and high-current battery simulation device |
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| CN (1) | CN202634271U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664519A (en) * | 2012-05-30 | 2012-09-12 | 无锡德思普科技有限公司 | Low-noise wide-range heavy-current battery simulation device |
| CN104955242A (en) * | 2015-07-10 | 2015-09-30 | 成都振中电气有限公司 | Energy-saving device with high adaptability |
-
2012
- 2012-05-30 CN CN 201220251845 patent/CN202634271U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664519A (en) * | 2012-05-30 | 2012-09-12 | 无锡德思普科技有限公司 | Low-noise wide-range heavy-current battery simulation device |
| CN104955242A (en) * | 2015-07-10 | 2015-09-30 | 成都振中电气有限公司 | Energy-saving device with high adaptability |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20210530 |
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| CF01 | Termination of patent right due to non-payment of annual fee |