| Author | Views | Views Today | Rank | Comments |
| 216,853 | 10 |   |
177 |
| Author | Views | Views Today | Rank | Comments |
| 216,853 | 10 | |
177 |
| This charger will charge any 12V lead acid battery including flooded, gel and AGM. It is fully automatic and will charge at a rate up to about 4A until the battery voltage reaches a preset point at which it will switch to a very low current float charge. If the battery voltage drops again the charger will begin charging until the voltage once again reaches the cut off point. In this way it can be left connected to a battery indefinitely to maintain full charge without causing damage. An LED indicates when the battery is fully charged. |
Schematic |
Parts |
|
Notes |
Related Circuits |
Comments |
| Add A Comment |
| Hi, can the circuit be run from a 12V dc source or does it have to be AC ? | ||
| i av found the substitute for brx49 i actually used BT169 its difference is that BRX49 can accommodate a max voltage of 200v while BT169 can accommodate up to 400v but they both do pretty much the same work. i av used it in my circuit and it worked. the only problem that i av is that i need a modification for 24v charging system. | ||
| You can try 2N6565 for BRX49. See http://www.classiccmp.org/rtellason/transdata/2n3001.pdf Notice the authorship of the schematic is not known. Please stop posting comments hoping someone will write you back. If you don't want this circuit to drain your battery if it's connected and unplugged, buy one more D1, and stick it between Q1/R1 and the battery, with the cathode connected to the battery side, and the anode connected to the component side. If you drew it on the schematic its symbol would be thus: Q1 & R1 ->|- to 12V battery. | ||
| I have put together this charger with these parts, DigiKey part # R1,R3= OD33IJE-ND R2 =100OHM 1/2W 3329P-101LF-ND pot R4,R5,R7,R8= 82W-2-ND R6= 100XBK-ND R9= OD102JE-ND C1= P13477-ND D1= SB550-E3/54 GICT-ND D2= 1N4004 DICT-ND D3= 1N4734A DICT-ND D4= LED Q1= 568-3651-5-ND Q2= EC103M-ND T1= TRIADMAGNETICS P#= F219X 115/12VAC 4A Now out put of transformer is 13.65VAC and out of D1 is 8,95VDC. On Q1 pin 1, 8.95VDC Pin 2, 1.05 which is the 12V + bat out put. Pin 3 Gate, 8.96. Q2 is Pin1, 8.3-V Pin 2 .41V Pin 3 -.2V, which is the -12V bat out put. So what have I done wrong? Any Help would be appreciated. I am trying to make a charger for my robot which has 4 6V SLA batteries 2 in series and then in parallel for 12V. | ||
| There is a problem, if you leave the charger at an unattended location and the power goes out, it will discharge the battery. (Editor's notes: Yep.) |
||
| can i know the actual pin configurations of the triac and the scr used in the circuit?plsss.... PLEASE GIVE ME THE SUBTITUDE OF BRX49 scr i am from india and it is not aviable plz give me the another subtitude for it. I used tyn604 but LED is glowing Countinusly. please send me details and please send pcb layout. thank you. | ||
| Why do you use a triac in a DC circuit? What about replacing D1 by a rectifier and Q1 by a thyristor? | ||
| what other equivalent can one use to replace the thyristors if not found? | ||
| sir i need brx49 scr but in local market not avilable in this number scr plase help me this scr eqlenet numer send my mail your sinci chandrashekar | ||
| Ya. its nice. i request you to kindly explain for me how it works. Theory and procedures used. Use my email please. Thank you. (Editor's notes: Search the forum for this explanation.) |
||
| l have this charger in my off road camper trailer and it has stop workingcan you help me out wiht it l live in perth is there a dealer here; | ||
| How do I modify automatic 12v lead acid battery charger to Automatic 24V Lead Acid Battery Charger with Transformer 24 volt 5A | ||
| have yoy done anything with desulfators.I've biult 2 and I'm not convinced they do anything (Editor's notes: They don't.) |
||
| sir plz give a substitute for BRX49.i cannt find it anywhere | ||
| the designer of this circuit has been used the half wave rectifiering .which performs that D1. without controlled rectification voltage so that the a.c voltage of secondary T1 must be within a stable range (12.5--13.5) volt .without widely shiffting. otherwise less than 12.5 volt there is no complet operation charging (full charge ) and more than 13.5 volt for long time may damage the battery .because you know the main a.c source that feeds the primary T1 is unstabl . do you know what is the equivalent circuit of a batte | ||
| This shows that a lot of curious people that know zero about the principles, still try to build things. It is very elementary knowledge that what charges here is the peak current/voltage, not the RMs values, so it really does not matter if is half or full wave. | ||
| I have a 24 volt charger no longer used to charge power wheelchair batteries. I want to change this to a 12 volt charger for a car battery. Seems like it should be reasonably straightforward. How will I go about this. | ||
| I have 4 x 105 Amp 12v sealed solar batteries being charged off solar panels during the day. At night I would like this charger to come in via a day night switch and check the batteries are full, if not it must come in and fully charge these batteries, so that they are full at all times. However I do not want to overcharge or damage these batteries in any way. i ahve built this suggested circuit and tested it on various 9aH 12v sealed alarm type batteries with various shelf voltages (Battery Voltage as they are on my workbench and have not been charged for some time). However I have had to take my seconadary transformer voltage to 16v Ac to get anywhere near + 13v required to charge this type of battery, but I get a maximum of 100mA charging current. Am I doing something wrong. Please advise as soon as possible. Thank you for your kind assistance and keep up the good work. Chris | ||
| 12v , 7ah : what will happen if he battery is charged for 24/7 hours , charge voltage 13.5v , with out any cutoff circuit Is this the right way of charging pls help | ||
| dear sir, i need a auto charging circuit which will be 36VDC auto charger. can i get such type of circuit diagaram with parts list. | ||
| All the circuits this person has are failures. I have built a few and none of them seem to work.This circuit shows that when 12v AC passes through D1 straight away you will only get half the voltage which is 6 volts dc so how is it going to charge a 12 volt battery? Shame on you for putting stuff like this on the net. (Editor's notes: This charger works fine. You are making mistakes.) |
||
| If only it was so simple ...
Unfortunately, due to the circuit having no smoothing whatsoever, any battery would be subject to so much 'ripple' current that it would be destroyed in a short space of time! (Editor's notes: Been using this circuit to charge batteries for nearly 10 years. No issues.) |
||
| instead of using ac supply ,can i use solar panel with output voltage 13.8v what regulating component can i use? | ||
| if i need to charge the 12V/9ah battery and simultaneously run a dc fan, how do i protect the battery getting discharged when there is a low sun light(can i use zener diode if so what could be the value i need to use?) | ||
| can this charger, charging the lead acid battery 6V? If this can do it, what needs to be change?Thanks for the information | ||
| I have two 24 volt industrial chargers, can i convert these for charging 12 volt automotive batteries? These chargers originally were charging four six volt gel cell batteries. I have another 24 volt charger that was charging four six volt deep cycle batteries. | ||
| How do I modify automatic 12v lead acid battery charger to Automatic 24V Lead Acid Battery Charger. what component should i change ? thanks | ||
| Sir,How do I modify automatic 12v lead acid battery charger to Automatic 24V Lead Acid Battery Charger with Transformer 24 volt 5A . what component should i change ? thanks | ||
| Pretty nice circuit you got, but please i am in need of an Automatic 12V-120Ah battery charger circuit diagram. | ||
| Q1 is that a triac or an scr? i think Q1 Is an scr . | ||
| how can i make the 12v lead acid battry charger to a 24v charger. | ||
| Hi, if you can provide a charge controller which is charger will automatically turns off the transformer when it reach 13.8V and it will be turning on automatically when the voltage goes down to 11V to avoid battery discharge. Thanks & regards | ||
| TO PREVENT BATTERY DISCHARGE WHILE AC POWER IS SHUT OFF, WHILE BATTERY IS STILL CONNECTED CAN BE PREVENTED BY INSTALLING A DIODE ( 5 amp @50 volts) AT THE JUNCTION OF Q1 AND R1 WITH THE ANODE TO THE JUNCTION AND THE CATHODE TO THE POSITIVE TO THE BATTERIES POSITIVE POST . | ||
| How can the charger supply 4A at >12V when the transformer secondary voltage is limited to 12V? Shouldn't the transformer secondary be at 15V. | ||
| very good circuit | ||
| sir i want Automatic 12V Lead Acid Battery Charger.but the specification is when the battery is full (14v) the circuit is cutt off the charging trans former .i think it protect battery as well as transformer.so kindly send this types of circuit | ||
| how can i modify this to run off of a solar panel | ||
| Is your circuit have over charging protection and it is continuous rated? can i use it for parmenantly connected on mode.? what changes if i want over charging protection. | ||
| To modify the automatic 12V lead Acid battery charger to become a 24V lead Acid charger, do U need to recoil the transformer? | ||
| If input voltage varies from180v to 240v (At transformer primary) Then can I use a Zener Diode (Paralell with transformer secondary) for taking 12V output from transformer,if i can do then what are the specification of that Zener Diode. | ||
| Sr.; Can I use 100ohms/2W resistor in R4,R5,R7,R8 ? I need a substitute of BRX49?, I don't find this component here in Brazil. Thanks!!! | ||
| instead of using ac supply, can i use solar panel with output voltage 13.8v what regulating component can i use? | ||
| How do I modify automatic 12v lead acid battery charger to Automatic 24V Lead Acid Battery Charger. what component should i change ? thanks | ||
| I need help determining what to use for the BT136 Triac and the BRX49 scr. I am trying to find suitable replacements for both. Which BT136 specifically is required? There is an entire series of BT136 Triacs. Do you have any suggestions for more common components that will work as replacements (for both)? Many thanks! | ||
| How do I modify automatic 12v lead acid battery charger to Automatic 24V Lead Acid Battery Charger. what component should i change ? thanks | ||
| Dear Sir, can i use a 6A 12V instead of 4A 12V? Is there any part should i relaced and if there is what components and value it is? | ||
| Sir I have a 18 volt output solar cell.I would like to have your charger to put out 5 to 600 ma. For my place in the desert.What if any resister changes do i have to make please? Thank You Rodney LaMay P/S i have a 12 volt battery | ||
| Please i would like to know what modifications i could make to the circuit to enable me charge 6-8 12v 100amps battery at a time. Ps you are doing a great job. Many thanks. Izzi | ||
| Can we use this charging circuit for charging battery in motorcyle ? I mean where power supply is from stator windings which is variable ? Any response will be appreciated. Thanks. | ||
| How do I modify automatic 12v lead acid battery charger to Automatic 24V/80A Lead Acid Battery Charger. | ||
| Sir, I am using a 6 Volt battery. How can I convert this circuit for charging my 6volt Battery? | ||
| it will charge but charging current is very low approx. 0.6-0.9A,can i increase. | ||
| How do I modify automatic 12v lead acid battery charger to Automatic 24V Lead Acid Battery Charger. what component should i change ? thanks. | ||
| How do I modify automatic 12v lead acid battery charger to Automatic 24V Lead Acid Battery Charger. | ||
| I would like to charge 3 batteries (12V 12 Amp/h each) in serial connection totaling 36V. What resistance values should I change to? Best regards. | ||
| dir sir how do i modify automatic 12 v lead acid battery charger to automatic 30 v 7 A lead acid batery charger | ||
| yeah i need to know how i can improve or simply step up my charger capacty cos 4A is very small to charge my device so i can i step it up i have built my inverter but i need to incorporate the charger circuit into it and the battery i used is 200Ahx 6 so help me out on how to get a suitable charger | ||
| Can i use my 6A 12V transformer on this circuit? I need your advise sir, and reply me, Thank you. | ||
| Hi i will like to make a 36VDC charger 20AMPs if you can help me TKS | ||
| Sir Thanks a lot of your its a very helpful circuit. | ||
| it's very good inormations and design . what do you mean by U1? in last raw of part table | ||
| Dear sir i am designing solar charger to charge a 12V Acid Battery with 185 AH (Amp per hour). the solar cell is 12V, i can run 12V energy saver with the cell. what kind of modifications will be done in above circuit to charge battery thanks | ||
| Sir, I am using this circuit for 6V battery.but the current flowing through the circuit is not as per our requirement.Please give the circuit diagram and working for 6V battery with current less than 0.2A. | ||
| OK THIS CIRCUIT IS OLD TYPE.NO PROTECTION. | ||
| Is this circuit workable for batteries from 50 to 175AHr? if not what changes required to do so, also how much harm this circuit can does to battery, is it reliable to work as first part of UPS. | ||
| How do I modify automatic 12v lead acid battery charger to Automatic 24V Lead Acid Battery Charger. | ||
| after building the circuit i found the outpot V less than 10V ,so added 2200 mic F capacitor after D1 which raises to 12V ; but the led before and after adding did not putoff although removing the VR.please help . | ||
| Hi, How can we add the 12v battery charger to the inverter to continue to charge the batteries while converting power from the battery to 240v | ||
| sir how do i modify the circuit to charge a 12V battery but for a different current? | ||
| sir's do i have to modify the circuit for a 20A 12V transformer? pls reply... thanks... | ||
| Thanks for schematic boss.. Will try it soon... Joel www.apobae.com www.garmin.co.id www.gps.co.id | ||
| In this circuit you suggested 12V ac Transformer, not to mention that the diodes will lower the output voltage also lead acid battery isn't at 12V even when discharged, its around somewhat 12.2~12.3 , and at fully charged its at 12.8 volts. So i wonder how this circuit gonna charge battery ??? (Editor's notes: The output of a 12V transformer is somewhat higher then 12V.) |
||
| what are the possible precaution that need to be followed to prolonged the live of the battery charger | ||
| You mentioned in the notes that the transformer could be changed to 18V output for charging larger batteries. Is this also true with 24 volt batteries? I need to charge 24 volt aircraft batteries. Will this ciucuit work for this application? | ||
| sir, how do i modify this charger to get it charge a 24V still with 4A.THANKS | ||
| Can I use circuit for three phase delta connections : 110V to 200V AC inout to charge 24V : 40 amps lead acid batteries: please comment with alternative | ||
| can a i make this so that i can use just as a charge controller with my own power supply | ||
| the site has given me an important clue which i think will help me execute my projet | ||
| It would be kind of you if you can help to design a charger to charge 120AH lead-acid battery via solar cell and alternatively main power line. | ||
| PLEASE GIVE ME THE SUBTITUDE OF BRX49 scr i am from india and it is not aviable in mumbai plz give me the another subtitude for it | ||
| Can i charge 80 Ahr battery or more with the help of this charger or will i have to increase the value of the components used. Please help me out. | ||
| Sir, I need to know the working principle of circuit diagram since i wanted the charger for 48V system with 4A. How do i modify this circuit. Thanks. | ||
| Can we use this diagram in 24v transformer? | ||
| If I want to use 10A transformer, did the rest of part will remain the same or must be use the bigger amps.? Thanks | ||
| we need description of the circuit and operation........... what is need for AND gate to the input of transformer. | ||
| PLEASE GIVE ME THE SUBTITUDE OF BRX49 | ||
| I need a 12V 35A/20Hr car battery charger please do send me. | ||
| Can a 12 volt center tapped XFMR be used with this circuit to charge both 6 or 12 volt batteries by switching the cener tap and the bottom XFMR leg? Thank You. | ||
| Is their a way to make the charger work using 25VDC rather than the 120VAC. I need a battery charger that will run off of 25VDC. Any comments will help. | ||
| Respected Sir, Can u plz provide me the ckt diagram for a microcontroller based batterr charging ckt Waiting for a positive reply | ||
| it is good, but i need something more of automatic. keep up your good work. | ||
| It is good, but i have a 12V-7AH battery. According to theory, We have to charge it by 7/10= 0.7A. So 4A is too high, do you have any idea to decrease it to around 0.7-1A. | ||
| Please send me the functioning of each components(description). URGENT! (Editor's notes: I'll save you the trouble of searching the forum: http://www.aaroncake.net/forum/topic.asp?TOPIC_ID=5954) |
||
| i would like to know that if this circuit will able to charge up to 12v 7ah batttery simultaneously? | ||
| This is good but can u give me the circuit description and cant this be implemented even more simply? | ||
| respected sir, can i charge 18ah12v batterry with this ckt, can do it , which input powersupply require,this ckt make over voltage cut off ? | ||
| ENGINEER AYO HELP? Pls give me a circuit diagram that can be use as low battery cut-off and full cut-off e.g when a battery is working with inverter and when it runs down to 9v or 8.5v the circuit should cut-off and when it start charging immediately 13.5v or 14v and 14.5v is gained the circuit should also cut-off, and pls i also need a battery back up. e.g when a 12v battery is been used on inverter , the circuit will make it last at least two,three,four,five days or a week. | ||
| Sir, can we replace the lead acid battery by an SMF battery in the same circuit? | ||
| can i up this to a output of 24VDc | ||
| This is great but for 12v 120Ah battery it does not work? please can i upgrade this circuit? | ||
| hi, sir can you please give me the detailed description about the circuit operation and working of each component in the circuit.
thank you (Editor's notes: Search the forum.) |
||
| Good site! | ||
| i would request you to tell me more about this circuit. plz send me an email about the design procedure and woking principle of automatic 12V Lead Acid Car Battery Charger
Thank you (Editor's notes: Search the forum, or read previous comments.) |
||
| Can you provide me the most simple design for a battery charger? Thanks | ||
| Sir, Can you please tell me how to make battrey charger with POWER MOSFET MTP3055,Autoshut-off, Polarity Protection,Short Circuit Protection? Thanks You | ||
| is it possible to use this circuit on a 12v 45Ah 300A car battery? | ||
| Nice design. I believe I can answer a couple of the questions, in that you need to know what the allowable high rate charge can be for your application. If you have a big battery (e.g. 19Ah) you can drive a higher current to begin with like this design shows, but if you have a smaller battery (e.g. 2500mAh) you need to drive a lower initial current or you will probably create a toaster or an IED. Simply use a lower current output transformer and your high rate charge current will be lower too. Some component adjustments may be necessary to get the right threshold voltages. Idea: Add diodes (large enough to handle the current) on the output to prevent battery drain in the event of a power disconnect. | ||
| Dear sir, I REQ 12V 10Amp BATTERY CHARGER CIRCUIT WITH FLOT AND BOOST CHRGING ATOMATICALY CHANGE KINDLY SUGGEST ME | ||
| much better if the whole assembly (picture of the circuit's assembly) must shown in this site together with the schematic diagram. well, this site is very good, i learned from it... thanks a lot... | ||
| can i also use this charger to charge a 12v motorcycle(dry cell) battery? | ||
| How about 12v 7A 10hr Sealed Acid batteries ? may I use that schema too? please reply me. thanks | ||
| This project is helpful to the students who wanted to learn the basic concept of designing. R4 and R5 are connected in parallel may be replaced by a single resistor if the desired resistance value is available. R7 and R8 also have the same situation with R4 and R5 as they are connected in parallel. Being a half-wave rectifier circuit, the charging current is smaller compared to the fullwave rectifier circuits. Fullwave center-tapped or fullwave bridge type may be used as an alternative rectifier to this project. | ||
| Please tell me if this charger can be left to charge a battery for indefinined time,or it need other circuits? Regards | ||
| Thanks a lot fot the circuit, i have a question: can i use a full wave rectifier (4 diodes) instead half wave (1 diode). Thanks gg. | ||
| i cant find BRX49 SCR,... can you give an equivalent componet that is widly avelable; thank you... | ||
| Can I use 500mA transformer? And can I use TYN612 SCR instead of BRX49? | ||
| Sir , Can I use this circuit to charge 24 V battery ? Please suggest the componenent value changes. Thank you. | ||
| can u please show the whiole specification about the circuit? kindly sir. thanks | ||
| Good site! | ||
| Can I use a UPS to make it to power to a Computer power supply without the Mains for quite a long time | ||
| can i use this circuit perminently to the battery because when power is gone to load automatically i want to conect this battery to load that means like backup battery. if any modifications required pl.give the additional circuit | ||
| sir, is there any substitute for the following: Q1-:BT136 TRAIC Q2-:BRX49SCR | ||
| thanks to almighty for finding out such a site enhance students especially the young tech- with there career. I say a BIG weldone to the site management | ||
| IS THIS CIRCUIT REALLY WORKS | ||
| Can you also let me know about a UPS and how I can make it to power my Computer without the Mains for quite a long time. | ||
| Thank you very much for this circuit | ||
| Dear Sir,
thanks a lot for all that you are doing for technological improvement and humanity in general.
Please Sir,kindly help me with the full circuit diagram of automatic 12v lead acid battery charger capable of charging 12v 200ah battery automatically..Thanks in advance. (Editor's notes: It's on the page about 8 inches above this comment.) |
||
| can i use 5 amp transformer instead 4amp transformer? | ||
| This looks useful. It appears to be the half wave equivalent of a full wave battery charger from Harb.Frieght ~ $20 which is 6v/12v 2A/6A. Item 45005 very nice. | ||
| I need to charge a 18v 1.2 amp lead acid battery. Also, can I use a 18v 1.2 amp dc power supply, it measures over 22v at no load. | ||
| Thank you for this circuit design | ||
| very good | ||
| HI, I WILL LIKE TO ATTACH THIS CIRCUIT TO AN INVTER CIRCUIT TO ENSURE THAT ANYTIME THERE IS A DROP IN THE BATTERY VOLTAGE, IT WILL AUTOMATICALLY BE RECHARGED. DO YOU THINK IT WILL WORK OUT? | ||
| I am very thank u to the person who create this circuit but i am little bit pointed because it does not complete with the process of work, i have a question for you that can you explain me please, how the circuit of atutomatic Lead Acid 12volt charger can work???? | ||
| I feel I will be cheating on myself if I don't thank you people for this great and wonderful work! THANK YOU Very Very much to let us easily get and learn this information. Can you also let me know about a UPS and how I can make it to power my Computer without the Mains for quite a long time. | ||
| thank u | ||
| while looking for above circuit. I found this site and found very helpful. I hope you will maintain it. ok. | ||
| good for the proffessional and the greens alike | ||
| Quite good for me. | ||
| It's a good design, however, using it in a smaller type of lead acid battery might blow the battery itself. using it on a bigger one like 2SM is good, and I appriciate the performance. thanks | ||
| pls i need more xplanation on this project and how to design one for a bigger battery | ||
| I feel I will be cheating on myself if I don't thank you people for this great and wonderful work! THANK YOU Very Very much to let us easily get and learn this information. Can you also let me know about a UPS and how I can make it to power my Computer without the Mains for quite a long time. | ||
| Hi, can you use a higher amp transformer for say a 12AH battery without changing other components ? | ||
| Thanks for the diagram but what type of electrolite cap is needed | ||
| i want to know how it work authomatic | ||
| please kindly send me manual for the troubleshooting for in case of any problem | ||
| It is a Very use fulfor the students like me. | ||
| pliz I wanna get some analysis of a battery charger that is to be used for the ups to supply 12 volts. Thanks. | ||
| Can it be a risk of the gates on the circuit board can be burned off, because of the high current? | ||
| can you please send me the principle of operation of this battery as i want to build one for myself.
Thank you. (Editor's notes: http://www.aaroncake.net/forum/topic.asp?TOPIC_ID=5954) |
||
| Can u send me,the pcb layout of this project....please send me also some substitution af BRX49 SCR..because i cant buy here in our area... | ||
| Is it possible to charge multiple 12V 3Ah SLA batteries in parallel at once with this circuit? would anyone be able to recommend any circuit modifications to do so?
thanks. (Editor's notes: Yes.) |
||
| pliz sir,kindly e-mail to me the design calculations for the Automatic 12v lead acid battery charger.i interested in making the project and presenting it to the panel.Thanks in advance yours,cyprian. | ||
| First, thank you for your diagram. How can I use a 12vdc input to charge a 12vdc battery? | ||
| CAN YOU SEND ME PLEASE THE PCB OF THIS CIRCIUT | ||
| Is it possible for you to supply the design calculations? | ||
| dear sir, i want clarify about 12 v battery charger , how much for the max amps battery will be conected, thankyou, murali. | ||
| can that circuit use for 24 vdc and 10 A? aand 12 Vdc 10 Amp? what component should change? | ||
| i highly appreciate your notes they have been of great help to me. | ||
| Hi. Great design. Currently I'm looking for at charger to small motocycles, as it is over charging the battery. So I want to know if Q1 can be changed with a TIC 263M? (to increase the current) Best regards, Torben | ||
| HI THENK'S FOR AGRAET CIRCIUT CAN YOU SEND ME PLEASE THE PCB OF THIS CIRCIUT. thank you. | ||
| Hi, Have you had any posative comments from whom have built this charger ?
Would I be able to use these on Marine type GEL batteries?
Does the current self limit in case the battery is flat ?
kind regards
Peter (Editor's notes: Works great. I use it all the time.) |
||
| worst charger i have ever seen i can make it more effecient | ||
| Can this be modified for 24 Volts | ||
| a relay can be added to the circuit in order not to drain the the battery if the circuit was unpluged. the coil of the relay can be connected after D1 or a bridge and its normally open switch can be connected in series with the +ve of the battery | ||
| drawing such a huge current with a half wave rectifier continiously will destroy trafo. a bridge rectifier may be used instead. | ||
| i need the above diagram in my box | ||
| is it possible to use a bridge rectifier instead of D1?.Please I will be glad if my question is answer as soon as possible.THANKS | ||
| Please explain briefly circuit function of lead acid battery charger . (Editor's notes: See this forum topic) |
||
| its nice | ||
| Which of suppliers could I used to get parts for that your Charger? | ||
| can i know the actual pin configurations of the triac and the scr used in the circuit?plsss.... (Editor's notes: Datasheet...) |
||
| My name is wongalethu, i just want to know how long or how many minutes is the charger will it take to charger a battery.
thank you. (Editor's notes: Depends on the size of the battery.) |
||
| Ibuilt this circuit but LED not working voltage accross the LED is very very low 0.09v -0.06v what would be the problem | ||
| Could you tell me how can I buy the parts for both Chargers - #1 and #2, please. | ||
| please i need a circiut diagram for 12V/5A battery charger | ||
| i need a circiut diagram for the above.please send to my box | ||
| All comments are being shown. Show Only Last 10 Comments. | Add A Comment |