Battery voltage equalizer circuit jobs:
| Project Name | Description | Type | Bids | Avg (USD) | Skill Required | Started | Ends | |
|---|---|---|---|---|---|---|---|---|
| ... a wide voltage range (2V-16V per battery). The maximum amount of current that ... a microcontroler instead of discrete components, the source code will be required, atmel controllers are preferred. This is an open source project with a low budget, so ... | Fixed | 12 | $525 | Electronics, Engineering | Jul 14, 2009 | - | ||
| ... for use in a noisy environment. Should battery voltage go above or below a ... a relay which will stay triggered until voltage levels return to normal parameters. Device ... 10A Programmable with RS-232 pins Circuit testing and improvements are welcome but ... | Fixed | 0 | Electronics, Engineering | Jul 11, 2009 | - | |||
| ... for use in a noisy environment. Should battery voltage go above or below a ... a relay which will stay triggered until voltage levels return to normal parameters. Device ... to 10A Programmable with RS-232 pins Circuit testing and improvements are welcome but ... | Fixed | 7 | $661 | Electronics, Engineering | Jul 11, 2009 | - | ||
| Hi, I have a circuit which can charge the cellphone with the ... USB port, 2.Display if the battery /voltage on USB port is ... also give a signal if mobile battery is fully charged. 4.Should givve signal if the external battery (1.5V) is discharged. Should ... | Fixed | 2 | $1500 | Android, Mobile Phone, Windows Mobile | Apr 25, 2012 | - | ||
| Hi, I have a circuit which can charge the cellphone with the ... USB port, 2.Display if the battery /voltage on USB port is ... also give a signal if mobile battery is fully charged. 4.Should givve signal if the external battery (1.5V) is discharged. Should ... | Fixed | 5 | $92420 | Android, Mobile Phone, Windows Mobile | Apr 22, 2012 | - | ||
| We are seeking a person who understands the circuit of a Non-Contact Voltage Detector (NCVD) circuit used in devices such as the ... equivalent). This project involves design of a similar circuit with a few modifications. All work will ... | Fixed | 11 | $3764 | Electrical Engineering, Electronics, PCB Layout | Mar 1, 2011 | - | ||
| ... are looking for design of a circuit which will return a value ... as a description of how the circuit will work. In summary: a. ... of water b. Source voltage on circuit will upto 24VAC c. ... 1cm apart and stainless steel e. Voltage used to measure cannot be ... | Fixed | 7 | $394 | Electrical Engineering, Electronics, Engineering, Microcontroller | Apr 20, 2011 | - | ||
| ... new lead engineer to replace our existing Circuit Board Designer. This project will be ongoing ... relatively simple DC controller with PWM variable voltage output selected by the user in ... or an RC car's voltage regulation circuit board. At this time, we ... | Fixed | 44 | $422 | Electrical Engineering, Electronics, Manufacturing Design, Microcontroller, PCB Layout | Feb 17, 2012 | - | ||
| ... new lead engineer to replace our existing Circuit Board Designer. This project will be ongoing ... relatively simple DC controller with PWM variable voltage output selected by the user in ... or an RC car's voltage regulation circuit board. At this time, we ... | Fixed | 18 | $419 | Electrical Engineering, Electronics, Manufacturing Design, Microcontroller, PCB Layout | Feb 18, 2012 | - | ||
| ... 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 | - | ||
| I am in need of a small circuit board with an LM723 regulator. 20vdc input with at least 9 to 18v variable output. I have a circuit the I have built on a perf board that works just fine. Or your circuit is fine too. Once the R & D is complete I ... | Fixed | 25 | $119 | Electronics | Aug 8, 2009 | - | ||
| ... voltage range (2V-16V per battery). The maximum amount of current ... with an ATTiny2313, and the source code will be needed. Keep in mind the voltage source for the micro controller are the ... environment. This is an open source project with a low budget ... | Fixed | 8 | $181 | Electronics | Aug 5, 2009 | - | ||
| ... indicators. The battery circuit must disconnect the battery at a defined voltage to ... Battery is to be connected externally, voltage and capacity variable depending on ... and cheap device. Deliverables are: 1. Circuit design 2. Gerber, solder resist, ... | Fixed | 13 | Electronics | May 23, 2008 | - | |||
| Fixed | Feb 3, 2011 | - | ||||||
| ... – 56 A) / 12.8 kW Battery voltage (range) 48 V (41 V – 63 V) Max. battery charging current / continuous charging current ... )⁄20, and the voltage is 4V. In order to ... as current in a series circuit does not change. In order ... | Fixed | 1 | $200 | Electrical Engineering, Matlab & Mathematica | Apr 11, 2011 | - | ||
| Fixed | Dec 5, 2007 | - | ||||||
| ... three main functional components to this project: Battery Switch over: 1) The primary power source ... volts it should return as the power source. 4) Protection from losing power out of ... supply (a diode) when the battery is the power source 5) Means of a ... | Fixed | 7 | Electronics, Engineering | Nov 13, 2008 | - | |||
| Fixed | Apr 15, 2009 | - | ||||||
| ... of 10-16,5-18V{battery powered}, they have to work ... input signal 8. Board has also battery monitor circuit that measures ... , from 11 - 16,5V when battery voltage reaches 18V, other diode ... bellow 10V needs to disconnect battery from load, via say relay ... | Fixed | 4 | $373 | Electrical Engineering, Electronics, PCB Layout | Dec 7, 2011 | - | ||
| Fixed | Feb 6, 2012 | - | ||||||
| ... Bone hardware and software design project. Develope the system requirements for a poly LI-ION battery power cape. Do ... C row boat kernel software development. Integrate the system together so that it functions within its specified ... | Fixed | 2 | $625 | C Programming, Electronics, Embedded Software, PCB Layout | Today | 6d 21h | ||
| ... your engineering expertise to design the circuit, the information below is just ... need to make quantity. a circuit board that I can fit ... that is about 3X2 inches. Battery operated that will last for ... display has to be low voltage to accomplish this it has ... | Fixed | 7 | $186 | Electronics, Engineering | Sep 19, 2008 | - | ||
| ... and NICd batteries packs charge. The battery packs will contain a number ... temperature - Adjustable Cut off circuit - Battery temperature monitor ( to control full ... point) The supplier must deliver: - Schematics - Gerber - Source code ( if needed ... | Fixed | 29 | $466 | Electrical Engineering, Electronics, Microcontroller, PCB Layout | Aug 17, 2011 | - | ||
| ... good AC filter to handle discharges, peaks, noises and voltage variations incoming from the AC line. The Battery Charger must work as ... per output: 3A Current charger limit: 6A Short circuit protection per output: 10A Minimum efficiency: 70% ... | Fixed | 11 | $480 | Electronics, Engineering | Aug 25, 2008 | - | ||
| ... match is hit with a small voltage pulse from our computer. I would like to take the voltage pulse (12 to 24 volts ... gel cell battery to a 12 volt electric solenoid valve. The circuit ... the same if desired The circuit must have multiple isolated inputs ... | Fixed | 22 | $24 | Electronics, PCB Layout | Nov 20, 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 ... | Fixed | 7 | $1371 | Electronics, Manufacturing, Manufacturing Design | Jan 13, 2012 | - | ||
| ... at distance (by internet) and read a voltage level in one section. I coud ... a copule of CD4051 (switch), wich select the voltage to read. This voltage is from a battery, I need to read ... voltage via AD converter. This voltage must be read in the web server ... | Fixed | 11 | $198 | C Programming, Electronics, Microcontroller, Remote Sensing | Jan 23, 2012 | - | ||
| ... at distance (by internet) and read a voltage level in one section. I coud ... a copule of CD4051 (switch), wich select the voltage to read. This voltage is from a battery, I need to read ... voltage via AD converter. This voltage must be read in the web server ... | Fixed | 10 | $420 | C Programming, Electrical Engineering, Electronics, Microcontroller, Remote Sensing | Jan 28, 2012 | - | ||
| Fixed | Dec 7, 2007 | - | ||||||
| ... Voltage= 11.1VDC, 7200mah lithium polymer battery Output voltage= 7.3vdc I need a design made to automatically adjust the input voltage to output a constant 7.3vdc ... or similar electronic device. Using just a voltage regulator, caps, and resistors is not ... | Fixed | 16 | Electronics | Jul 22, 2007 | - | |||
| Fixed | Jan 11, 2011 | - | ||||||
| Fixed | Jun 19, 2011 | - | ||||||
| Fixed | Jul 3, 2011 | - | ||||||
| Fixed | Jul 4, 2011 | - | ||||||
| I need someone to design a small circuit board that has integrated rotary dimmer-( ... degrees from click on to full output voltage. The whole arrangement must be electrically ... electrical specs eg. min-max input voltage,current etc. , min-max output voltage ... | Fixed | 11 | AutoCAD, CAD/CAM, Electronics, Manufacturing Design, PCB Layout | Sep 15, 2011 | - | |||
| ... (and possibly provide prototype) of a circuit to detect low water level and ... continuity between two contacts, using very low voltage/current so that it is intrinsically safe against electrocuting swimmers. Circuit would include an overfill lockout that ... | Fixed | 23 | $197 | Electrical Engineering, Electronics, PCB Layout | Apr 17, 2012 | - | ||
| Fixed | May 6, 2008 | - | ||||||
| ... be conducted to ensure that the circuit measuring the flow of milk will not produce voltage or current that could harm ... as a description of how the circuit will work. In summary: a ... 5k ohms d. Source voltage on circuit cannot exceed 5vDC - We ... | Fixed | 19 | $378 | Electrical Engineering, Electronics, Engineering, Microcontroller | Jan 23, 2010 | - | ||
| ... a diagram of a simple circuit using a transistor.(BC558) The ... is important because of it being battery powered. (2) Component needs: (a ... alarm would need to be battery powered by a physically small ... (h) very low battery drain while circuit is in alarm-off ... | Fixed | 21 | $340 | Electrical Engineering, Electronics, Engineering, Microcontroller, Test Automation | May 30, 2010 | - | ||
| 1) A battery model built by Matlab/Simulink will be provided. (Make ... the battery state of charge (SOC). 3) System Input: trajectories of voltage and current ... during charging, trajectories of temperature of battery 4) System Output: indicator shows SOC, ... | Fixed | 4 | $588 | Automotive, Electrical Engineering, Machine Learning, Mathematics, Matlab & Mathematica | Jul 5, 2010 | - | ||
| Your mission is to design a circuit and PCB layout which will ... 18VDC Horizontal. In other words, the voltage which is input is boosted ... of 300mA and power for the circuit should be drawn from the ... and will be placed in circuit between the tuner antenna input ... | Fixed | 6 | $175 | Electronics, PCB Layout | Jun 14, 2011 | - | ||
| Fixed | Jul 7, 2010 | - | ||||||
| Fixed | May 8, 2009 | - | ||||||
| ... 24V, 12A supply is used for Battery charging. PWM pulse for Full ... from other board. 3. 24V Battery voltage and current sense circuitry ... from PFC o/p. isolated 12V,3A supply from 24V battery ... supply is generated from 24V battery. Work includes H/W design ... | Fixed | 11 | $220 | Electronics, Engineering | Jul 12, 2009 | - | ||
| ... a few inches of the water. The circuit must be battery powered by a small over the shelf battery,The unit will be operated a for about one hour everyday. We would like the battery to last atleast one year. The temperature range is ... | Fixed | 32 | $497 | Electronics, PCB Layout | Feb 14, 2010 | - | ||
| Fixed | Oct 23, 2011 | - | ||||||
| Fixed | Dec 31, 2011 | - | ||||||
| ... gauge has details of the battery usage of each application. These services provide information of one battery I want it for 2 ... spare. 2. For the idle battery the page will describe its ... , what kind of battery , voltage, and the battery strength as in ... | Fixed | 5 | $352 | Android | Nov 3, 2009 | - | ||
| ... use is important because of it being battery powered. (2) Component needs: (a) It ... The alarm would need to be battery powered by a physically small battery ... battery (h) very low battery drain while circuit is in alarm-off mode ... | Fixed | 19 | $321 | Electrical Engineering, Electronics, Engineering, Manufacturing Design, Mechatronics | Mar 10, 2010 | - | ||
| Fixed | Jan 19, 2012 | - |
Showing 1 to 50 of 2057 entries
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