|Solar Charger Circuit design with Power Supply
||...require a design for a DC power supply with a Lipo battery and a solar charger. See attached PDF for details
||Jan 18, 2015
||Jan 18, 2015Ended
|Electronics Power Supply Modification
||The power supply circuit in the battery charger is rated for 120V.
I am aware that the two of the...When these three components have been changed the charger operates well as it should, but it is also a little...modification the battery charger worked for only 2 months. The battery charger still turns on but when
||Feb 23, 2013
||Feb 23, 2013Ended
|Battery switch over & charger circuit diagram
||Battery switch over & charger circuit diagram
The device is powered from a 12 volt...volt 3 Amp switched mode power supply and also contains a 12 Volt 7 AH seal lead acid battery. Contained...Contained is a microprocessor and the 12 Volt supply rail which is used by a number of other sub system.
||Nov 13, 2008
||Nov 13, 2008Ended
|Circuit power supply
||Hi, I have a circuit that was made to accept power and the data from a ps/2 interface (normal computer...keyboard power supply) 5V. Now the powering device has changed, and the new device has a power voltage...signaling voltage of +9V -9V. The microchip on the circuit has been reprogrammed to accept the serial data
||PHP, Engineering, Electronics, Software Architecture, Software Testing, MySQL
||Dec 24, 2005
||Dec 24, 2005Ended
|Miniature Transformerless Power Circuit
||...or Similar, i wish the following:-
OUTPUT To power a GSM module working
DC volt 3.3vmin - 4.8vmax...50hz
Working off UK mains electricity
Module POWER Requirements TC35i
BEWARE I MAY NEED TO...your solution can meet the standards.
The circuit also must offer some form of regulated voltage
||Apr 19, 2011
||Apr 19, 2011Ended
|Electronic power supply supervisory circuit
||Monitor the outputs of a 7 output dc power supply to determine when each is within its required operating...means of verifying circuit operation (Negotiable, based on complexity of circuit. If needed, I can build
||Engineering, Electronics, Phone Support
||Mar 5, 2009
||Mar 5, 2009Ended
|Power electronic -(Battery Charger )
||...logbook can be used for this assignment. All of circuit diagrams, which were created by students themselves
||Oct 8, 2014
||Oct 8, 2014Ended
|LiPo Battery Charger
||...should kick-in only when there is a failure in the supply from 12V DC adapter.
2. The switchover should...same.
4. Priority order for the supply is as follows -> Power Supply -> Primary Battery Backup -> Secondary...control signal even when the power is present (In which case the power supply should be isolated).
||Aug 4, 2014
||Aug 4, 2014Ended
|Li+ion battery charger circuit
||...-Vin 5 to 24 DC;
-three-stage LED indicators (power present/fault; charging; ready)
||Mar 27, 2009
||Mar 27, 2009Ended
||...need a battery charger able to charge two serial connected batteries of 18 Ah. The circuit must have two...AC power the output voltages must be provided by the battery.
The transition between AC power and...to the battery is very delicate.
The battery charger must provide a very good AC filter to handle discharges
||Aug 25, 2008
||Aug 25, 2008Ended
|Power supply circuit and PCB design needed
||...need a circuit and PCB design for a 5 volt power supply with a battery charge and supply circuit to provide...provide power when the input voltage fails. In effect this is a small simple 5 volt UPS, without any fancy..."supply fail" outputs other than a couple of LED indicators.
The battery circuit must disconnect
||May 23, 2008
||May 23, 2008Ended
|PCB Layout and Assembly for small power supply circuit
||I have a simple circuit for a power-over-ethernet power supply, and would like the PCB Layout completed...completed for the circuit. It is a simply circuit that is comprised of only 15 components including bridge...prototype board build and assembled, which I can supply all of the components.
I am attaching the schematic
||Jun 21, 2011
||Jun 21, 2011Ended
|Design a linear regulated power supply circuit
||...within the team is to design a Regulated Power Supply Circuit in order to meet the requirements of the...‘off grid’ electrical power is the only option whereby a 12V DC regulated power supply is required.
||Jan 22, 2015
||Jan 22, 2015Ended
|Uninterrupted power supply project
||...provided accordingly. The process of trickle charger is also required for battery protection.
||Electronics, Electrical Engineering
||Feb 7, 2015
||Feb 7, 2015Ended
|Switching Power Supply Design
||...Engineers who can design regulated switching mode power supplies. The projects will come on regular basis...design and other types of circuit design. Sometimes we will give you partial circuit and tell you to add other...accomplish a certain functionality for the whole circuit. YOu have to know the Electrical Engineering concepts
||PHP, Audio Services, Engineering, Electronics, Software Architecture, Software Testing, MySQL
||Jan 11, 2007
||Jan 11, 2007Ended
|power supply design
Currently used power supplies are resonant circuit design.
Looking to replace resonant...resonant supplies with switch mode using a power corrected front end. We have a design that needs additional
||Mar 6, 2014
||Mar 6, 2014Ended
|Alkaline battery charger with voltage control and cut off
||Looking for circuit design.
This is for an alkaline battery charger, powered by batteries and NOT...NOT by 110V/240V home power supply.
When being charged, the voltmeter is not accurate as it reads 2.0~2...actual voltage can be seen.
I need an electrical circuit design where the actual voltage can be seen all
||Engineering, Electronics, Electrical Engineering, PCB Layout, Circuit Design
||Nov 16, 2014
||Nov 16, 2014Ended
|Design a 19v power supply
||I would like a power supply that meets the following requirements:
Ouput: 19VDC...19VDC 600W minimum
Fits into the standard ATX power supply dimensions:150 mm × 86 mm × 140...140 mm
I would prefer to have a fan circuit with the rpm automatically controlled by the temperature of
||Electronics, Electrical Engineering, PCB Layout
||Nov 11, 2011
||Nov 11, 2011Ended
|circuit design for a Power Unit
||...engineer to make a schematic (circuit) design for a part (section) of Power Supply Unit with some certain features...features. The Power Unit is for vacuum tube devices, we have both the new vacuum device and the common...common section of Power Unit already made, so we need just a part of the circuit to complete the Unit with
||Engineering, Electronics, Electrical Engineering
||Jan 18, 2012
||Jan 18, 2012Ended
|15 W Power Supply
||I need a power supply design that would have a Nominal 12VDC 15 Watt output.
The input would be variable;...(approximate).
It is expected to be a combination of circuit design and transformer design. It must be able
||Engineering, Electronics, Electrical Engineering, Product Design
||May 8, 2013
||May 8, 2013Ended