Circuit battery equalizer jobs:
| Project Name | Description | Type | Bids | Avg (USD) | Skill Required | Started | Ends | |
|---|---|---|---|---|---|---|---|---|
| Create a charge shuttling battery equalizer like this one: http://www.electric-lemon ... (11V min to 16V max). Therefore the circuit should be designed to operate under a ... the system is doing- balancing, balanced, error. -Circuit should go into low power mode ... | Fixed | 12 | $525 | Electronics, Engineering | Jul 14, 2009 | - | ||
| Create a charge shuttling battery equalizer like this one: http://www.electric-lemon.com/? ... There must be just three modifications to the circuit: -LEDs to indicate what the system is doing- balancing, balanced. -Circuit should enter a low power mode once ... | Fixed | 8 | $181 | Electronics | Aug 5, 2009 | - | ||
| The project consist on a circuit with all funcionatilties needed to perform ... and NICd batteries packs charge. The battery packs will contain a number of ... voltage and temperature - Adjustable Cut off circuit - Battery temperature monitor ( to control full ... | Fixed | 29 | $466 | Electrical Engineering, Electronics, Microcontroller, PCB Layout | Aug 17, 2011 | - | ||
| Battery switch over & charger circuit diagram Background The device is powered ... main functional components to this project: Battery Switch over: 1) The primary power ... will not lose power. Deliverables: 1) Circuit diagram, can be in eagle cad ... | Fixed | 7 | Electronics, Engineering | Nov 13, 2008 | - | |||
| ... volt UPS, without any fancy "on battery" or "supply fail" ... other than a couple of LED indicators. The battery circuit must disconnect the battery ... and cheap device. Deliverables are: 1. Circuit design 2. Gerber, solder resist, ... | Fixed | 13 | Electronics | May 23, 2008 | - | |||
| ... engineer I need the following.. A simple circuit that is described below and kind of ... use your engineering expertise to design the circuit, the information below is just to ... a space that is about 3X2 inches. Battery operated that will last for about ... | Fixed | 7 | $186 | Electronics, Engineering | Sep 19, 2008 | - | ||
| ... the internal resistance of the battery. The electronic circuit has to handle batteries ... is to determinate the condition of the battery based on its internal resistance. ... is highly preferred to develop this circuit using a microcontroller (PIC) of ... | Fixed | 14 | $1211 | Electrical Engineering, Electronics, Engineering, Microcontroller | Jan 25, 2010 | - | ||
| ... Picture 1.jpg]. Furthermore voltages of each battery must be monitored once every 10ms ... power sleep mode if variance in battery voltages is within preset parameters. ... 10A Programmable with RS-232 pins Circuit testing and improvements are welcome but ... | Fixed | 0 | Electronics, Engineering | Jul 11, 2009 | - | |||
| ... Picture 1.jpg]. Furthermore voltages of each battery must be monitored once every 10ms ... low power sleep mode if variance in battery voltages is within preset parameters. ... 10A Programmable with RS-232 pins Circuit testing and improvements are welcome but ... | Fixed | 7 | $661 | Electronics, Engineering | Jul 11, 2009 | - | ||
| Project characteristics: We need a battery charger able to charge two serial ... , 17.2 Ah batteries serial connected. Maximum battery current charge: 1.6A (Is desirable ... : 3A Current charger limit: 6A Short circuit protection per output: 10A Minimum ... | Fixed | 11 | $480 | Electronics, Engineering | Aug 25, 2008 | - | ||
| ... inches of the water. The circuit must be battery powered by a small over the shelf battery,The unit will be operated ... hour everyday. We would like the battery to last atleast one year. ... will be water proof. I just need the circuit designed and prototyped. ... | Fixed | 32 | $497 | Electronics, PCB Layout | Feb 14, 2010 | - | ||
| ... simple electrical and electronic circuit projects using basic components (resistors, capacitors, transistors, battery, etc). All components are already provided to ... The user could then plug in the battery, hold down the switch, and watch the ... | Fixed | 77 | $358 | Electrical Engineering, Electronics | Oct 21, 2010 | - | ||
| Fixed | Jan 19, 2012 | - | ||||||
| ... within the limitations of a car battery. The circuit is a security unit by ... Alarm light • Transmitter • Receiver The circuit should perform as follows. When the ... I refer to as activation light. The circuit and receiver should be design for ... | Fixed | 21 | Electronics, Engineering | Jul 15, 2008 | - | |||
| Fixed | Nov 2, 2010 | - | ||||||
| ... are complicated and charge the whole battery pack while balancing individual cells. ... power. Deliverables for this project are circuit designs, a working prototype for ... to winning bidder including specs of battery cells and ideas about implementation. | Fixed | 13 | $1265 | Electrical Engineering, Electronics | Mar 1, 2011 | - | ||
| Simple LED watch circuit powered by a 3v button cell battery (Multiplexing). When activated by user it ... -5 seconds). In short a very standard circuit. This is for a prototype so ... but a key feature is that the circuit can be bend i.e build ... | Fixed | 7 | $129 | Electronics | Nov 8, 2007 | - | ||
| Fixed | Sep 15, 2010 | - | ||||||
| ... electronic design and prototype for a RF circuit, wireless with one receptor and differenciated transmissors. The circuit will work at very small distance of 12 ... ensambled in very small space for circuit and battery. The project must comply with ... | Fixed | 16 | $430 | Electrical Engineering, Electronics, Microcontroller | Oct 23, 2010 | - | ||
| This project is for electronic circuit design and PCB layout. I am ... switch connecting a 12 volt gel cell battery to a 12 volt electric solenoid valve. The circuit must ... configured the same if desired The circuit must have multiple isolated inputs- ... | Fixed | 22 | $24 | Electronics, PCB Layout | Nov 20, 2011 | - | ||
| Design simple 24v control circuit Need to use automotive parts eg bosch relays ... design, layout and workshop drawings The circuit includes solar, battery bank 6 X 200Ah ... ok to use commerciably available solar charge controllers. Circuit needs to be robust | Fixed | 11 | Electrical Engineering | Jan 9, 2012 | - | |||
| ... from a switch B - 12 V power from battery A,B connected to a DC converter ... pushing a C switch ( we already have this circuit ) the system will start 2A) if the ... will power off the dc converter input from battery ask me if something is not clear ... | Fixed | 24 | $90 | Electrical Engineering, Electronics, Engineering, PCB Layout | Jun 8, 2010 | - | ||
| ... or take 2mm. 3.7 volt battery will be tied into this ... into the CB directly from the battery,(wire soldered in to board), ... be also powered from the phone/battery backup,the screen Im looking ... recharge the phone and back up battery unit with. Please ask any ... | Fixed | 14 | CAD/CAM, Electrical Engineering, Electronics, PCB Layout, PLC & SCADA | Mar 4, 2012 | - | |||
| ... small electronics project. I have a circuit and gerber pcb design but ... , before it is fabricated The circuit is pretty simple and is ... of time from a aaa battery power source. AS designed it ... are able to check this circuit on a breadboard, or manufacture ... | Fixed | 14 | $146 | Electrical Engineering, Electronics, Microcontroller, PCB Layout | Mar 5, 2012 | - | ||
| We are looking to develop a SLA battery recharging circuit to be used with our prototypes. Please contact me for further information regarding specific requirements. | Fixed | 20 | $152 | Electrical Engineering, Electronics, Engineering, PCB Layout | Jan 14, 2010 | - | ||
| Fixed | Oct 12, 2011 | - | ||||||
| PROJECT Develop and submit a working prototype of a RECHARGEABLE BATTERY POWER SOURCE IN CUSTOM CASING BATTERY Type: Li ion with built in circuit protection Max Voltage: 7.4V Capacity: 3000 mAh at ... | Fixed | 7 | $1371 | Electronics, Manufacturing, Manufacturing Design | Jan 13, 2012 | - | ||
| Fixed | Dec 5, 2007 | - | ||||||
| ... 1) 3) Same system model with equalizer (Using advanced Zero-forcing Algorithms ... , Rayleigh Fading model, Zero-forcing equalizer, QPSK demodulation whichever is possible ... of equations and calculations) - Why advanced equalizer algorithm has better BER over ... | Fixed | 9 | $671 | Electronics, Matlab & Mathematica, Report Writing, Wireless | Sep 10, 2010 | - | ||
| Fixed | Feb 6, 2012 | - | ||||||
| ... would be to develop an accurate music equalizer that looks EXACTLY like this image ... as configure the size of the overall equalizer. -Programmer (Adobe AIR is probably the ... programmer will need to make the equalizer detect currently played music in iTunes ... | Fixed | 4 | $180 | ActionScript, Animation, Flash, Windows Desktop | Jul 20, 2010 | - | ||
| ... system BER performance with/without MSE Equalizer. Requirement ( Project to do list) ... plot out BER graph without MMSE equalizer 2) Same system model with ... BPSK modulation, Racian Fading model, MMSE equalizer, BPSK demodulation whichever is possible ... | Fixed | 6 | $130 | Electronics, Matlab & Mathematica, Report Writing, Research, Wireless | Sep 9, 2010 | - | ||
| We want to develop a unique Buck converter charging circuit for a mobile charging device with internal battery back up. More details will be shared with the Freelancer after signing an NDA (Draft Attached). The ... | Fixed | 8 | $224 | Electrical Engineering, Electronics, Microcontroller, PCB Layout | Aug 30, 2011 | - | ||
| ... the flow chart but explain to me the motor and the battery with the solar power. waiting for your reply please send ... i posted the project requirement over here http://www.freelancer.com/projects/Electronics-Microcontroller/circuit-designing.html | Fixed | 7 | $8 | Electrical Engineering, Electronics, Embedded Software, Microcontroller | Oct 26, 2011 | - | ||
| I need an LED driver with a Li-Ion battery charger integrated onto the same circuit board. LED Driver: Provide power to 4 x 3.0A high power White LED's in series powered by 5 series - wired lithium ion batteries. (Buck ... | Fixed | 10 | $215 | Electrical Engineering, Electronics, Microcontroller, PCB Layout, Product Design | Mar 5, 2012 | - | ||
| This project is a simple TI embedded Beagle Bone hardware and software design project. Develope the system requirements for a poly LI-ION battery power cape. Do the circuit design for the cape. Do the PCB design for the cape. Do the Eclipse C row boat ke | Fixed | 3 | $617 | C Programming, Electronics, Embedded Software, PCB Layout | May 30, 2012 | 4d 15h | ||
| ... for someone to make an equalizer display application that runs on ... on/as the background. The equalizer display must be able to ... adjusting the size of the equalizer bars). I also want to ... . I have attached a small equalizer example. You may use the ... | Fixed | 1 | $200 | ActionScript, Animation, Flash, User Interface / IA, Windows Desktop | Jul 19, 2010 | - | ||
| hi,i´m looking for someone who can make a 4x4 matrix keypad circuit ,with very low power consumption,on battery 3,7 v, that it has an eeprom and i2c real time clock for the timestamp.The keypad entries should ... | Fixed | 19 | $1814 | C Programming, C# Programming, C++ Programming, Delphi, Engineering | Sep 10, 2011 | - | ||
| ... Unit with. The engineer would design the circuit and provide a professionally made digital schematic drawing of the circuit along with all the electronics components ... /names/indexes. We will assemble the circuit at our location. The engineer does ... | Fixed | 22 | $390 | Electrical Engineering, Electronics, Engineering | Jan 18, 2012 | - | ||
| This project is superficially simple, but difficult on the .1mm level. It incorporates a simple rugged battery tube, a 17 point design checklist (safety specifications, mostly intuitive and logical), a controller assembly, and piggy back circuit-board | Fixed | 4 | $910 | Industrial Design | May 10, 2012 | 11h 19m | ||
| ... like someone to design a fully functioning music equalizer display that can run on a user's desktop. The equalizer MUST look like the attached photo The ... necessary. My main concern is that the equalizer looks like the photo and that it ... | Fixed | 1 | $200 | ActionScript, Flash, PHP, Software Architecture | Jul 20, 2010 | - | ||
| ... system BER performance with/without MSE Equalizer. Requirement ( Project to do list) ... plot out BER graph without MMSE equalizer 2) Same system model with ... BPSK modulation, Racian Fading model, MMSE equalizer, BPSK demodulation whichever is possible ... | Fixed | 4 | $133 | Electronics, Matlab & Mathematica, Report Writing, Research, Wireless | Jan 14, 2012 | - | ||
| ... (and possibly provide prototype) of a circuit to detect low water level and ... is intrinsically safe against electrocuting swimmers. Circuit would include an overfill lockout that ... sensed for more than 20 minutes. Circuit should include LEDs to inform user ... | Fixed | 23 | $197 | Electrical Engineering, Electronics, PCB Layout | Apr 17, 2012 | - | ||
| I need help in miniaturizing a circuit schematic that I have (involves a microcontroller ... pill with half dedicated to a miniature circuit (with a microcontroller) and the other ... advice on how to take my existing circuit diagram and find components and create ... | Fixed | 8 | $635 | Electrical Engineering, Engineering, Microcontroller, PCB Layout | Apr 28, 2012 | - | ||
| Fixed | May 5, 2008 | - | ||||||
| ... I've already constructed system model and written program using matlab without equalizer. - Need help to add in equalizer and compare BER performance. - If you have Wireless or Digital Communitcation background, will be easier to ... | Fixed | 11 | $300 | Electronics, Engineering, Matlab & Mathematica, Wireless | Jul 10, 2010 | - | ||
| ... .png 2. Ybox A set-top box. Schematic : http://www.ladyada.net/media/ybox2/ybox2_11.png 3. Minty Boost A usb battery extender you can use to extend the life of your device with a usb cable. Schematic : http://www.ladyada.net/images/mintyboost/ ... | Fixed | 14 | $106 | CAD/CAM, Data Entry, Electrical Engineering, Electronics, Microcontroller | Sep 23, 2011 | - | ||
| ... comes the door will close. the food should be in a serten level. also the water. all of that will be working by a rechargable battery, which it will be charged by a solar. what you think? As per i think there is 2 issue so you can keep 2 ... | Fixed | 16 | $245 | Electronics, Embedded Software, Microcontroller, PCB Layout, Software Architecture | Oct 12, 2011 | - | ||
| ... Source==>QPSK Modulator==>Multipath Rayleigh Channel(Also with delay vector and ga,n)==>AWGN Channel==>LMS Equalizer(Decision Feedback Equalizer)==>QPSK Demodulator ==> BER Calculator BER is too high the problem is when I added LMS DFE ... | Fixed | 3 | $56 | Matlab & Mathematica, Wireless | Jun 12, 2010 | - | ||
| ... template made that will synchronize my audio track to a graphic equalizer that looks like this one http://library.creativecow.net/articles/tompkins_matthew ... 't seem to be synced with audio but I need the equalizer to sync with a wav file. I'm attaching a ... | Fixed | 11 | $32 | After Effects, Animation, Final Cut Pro, Video Services | Mar 25, 2011 | - |
Showing 1 to 50 of 1829 entries
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