How to charge the car battery from the laptop power adapter, scheme
| Current time: Thu Sep 15, 2022 19:43:24 |
Time Zone: UTC + 3 hours
Charging zone for car battery from laptop power adapter
| Page 1 of 1 | [ Messages: 20 ] |
|
Good day to all, yesterday I got a PSU from an Acer laptop, the parameters are – 19v 4.74A? And here I have an idea my father asked me to make him a car charger, and I think-how best to organize this case? Suggest if there are any thoughts on the subject _________________ Would know where to plant a straw. The easiest way to connect the unit through a resistor. If you want an automatic charger, you will need a schematic of your unit. The charging time from such a unit will be longer than it should be. _________________ If you are dissatisfied with your standard of living, the laws of our country, the price level, then remember all this at the next elections. The charging time depends on the capacity. To use all the power block, you need to optocoupler attached to the board control current and voltage at the chip TSM101 (TSM103), with strapping as in the diagram
_________________ Oh, how many wondrous discoveries the spirit of enlightenment prepares for us. “When society has no color differentiation of pants, there is no purpose!” PCB assembly from $30 + FREE shipping worldwide + stencil _________________ All designed before and for us. High quality at a competitive cost allows MORNSUN DC/DC converters to compete with counterparts from the world’s leading manufacturers. Products of this brand, such as the UWTH1D family, can be successfully used in railway applications. For telecommunications equipment are suitable DC/DC-converters of VCB and VCF families, for distributed power supply systems – K78 family small-size pulsed PoL-stabilizers, and for automated production systems and robotics – KUB series is indispensable. There are also unique solutions, such as miniature DC/DC converter B0505ST16-W5 in a chip design for medical devices. If it is an original charger, it should have a similar circuit to the tsm103. We have repaired several of them. _________________ Oh, how many wondrous discoveries the spirit of enlightenment prepares for us. “When society has no color differentiation of pants, there is no purpose!” The best is the enemy of the good . High quality at a competitive cost allows MORNSUN DC/DC converters to compete with counterparts from the world’s leading manufacturers. Products of this brand, such as the UWTH1D family, can be successfully used in railway applications. For telecommunications equipment are suitable DC/DC-converters of VCB and VCF families, for distributed power supply systems – K78 family small-size pulsed PoL-stabilizers, and for automated production systems and robotics – KUB series is indispensable. There are also unique solutions, such as miniature DC/DC converter B0505ST16-W5 in a chip design for medical devices. I had a friend give me this PSU to fix it, it was not difficult to fix it since there is a google removed the self-resetting fuse, also cut off the broken part of the wire, here are pics) _________________ It’s not what it looks like I have my doubts about both of these, no offense) _________________ Would know where to plant a straw. Where did you see a self-resetting fuse there ? If they say to charge it with a light bulb, you don’t need a calculator. _________________ Oh, how many wondrous discoveries the spirit of enlightenment prepares for us. “When society has no color differentiation of pants, there is no purpose!” The best is the enemy of the good . _________________ Would know where to plant a straw. _________________ Oh, how many wondrous discoveries the spirit of enlightenment prepares for us. “When society has no color differentiation of pants, there is no purpose!” The best is the enemy of the good . Also to the option of using a laptop PSU came, only from the other side. I wanted to make a smart charger for the battery on the MCU, as cheaply as possible, and with a minimum of effort (I would like to try to program, and someone would do the electronics for me) So the idea was born of using a laptop PSU as a donor. And the MC controls it with comparators connected to an optocoupler. To some extent I want to get the light version of this project, only for 1 channel. In the same way you can make a labaratornik, but you have to redo the duty cycle. In general, here is almost your case. Only you should choose smaller resistance value to make it 14.4-14.7. Then, if it is a car battery, you can not control the current, you can set it for 10-20 hours, it will charge itself. By and large, the current should be raised, in order to use it as a battery charger. For this purpose you would have to raise frequency, and/or to reduce current sensor in the source of field device, or to make current adjustable – but adjustable section can refer to UC384x version of PWM controller. But whether the pulse trans is made with some power reserve is another question. SZY – what do you mean – the link is not working? It opens, – the problem could be in the temporary preventive maintenance on the server _________________ It’s not what it looks like According to the link – there is no block scheme like the author’s. And there are no self-resetting fuses, just like there is no TSM101 in his unit. _________________ Oh, how many wondrous discoveries the spirit of enlightenment prepares for us. “When society has no color differentiation of pants, there is no purpose!” The best is the enemy of the good . What do you think about it, dear cats? I think – can not make any changes in the circuit power supply (in order not to screw up), and just put on the output LT 1084 with a good radiator? And by the way, I think to replace the standard radiators in the PSU by a little bit bigger, to heat it up less? _________________ Would know where to plant a straw. Put a resistor, which will be heated like chip, you have long advised (2,5 Ohm 30 W or auto lamp to pick up the charging current of 3-4 A). And if you want to do something smart, you should add automatic switch off at 14.5 V and protection against reverse polarity of the battery (relay with diode). To the capacitor 100mk*450V add another one of the same, in the network wires – limiting resistors (wire). Last edited by Enman Wed May 22, 2013 17:33:57, edited 1 time in total. Add the same capacitor to the 100mk*450V capacitor, in the mains wires – limiting resistors (wire resistors). _________________ Oh, how many wondrous discoveries the spirit of enlightenment prepares for us. “When society has no color differentiation of pants, there is no purpose!” The best is the enemy of the good .
When you “run out” of the one you’re standing on, the question will fall away all by itself. (That’s the sore spot of laptop units and this one specifically). How many notebook units I repaired, only 3 – 4 times I changed these capacitors. Of course not Chinese fakes. You have provided a scheme that the author is unlikely to assemble. At tsm101 the scheme is easier to fit into this block. But in this case you need a good hand. _________________ Oh, how many wondrous discoveries the spirit of enlightenment prepares for us. “When society has no color differentiation of pants, there is no purpose!” The best is the enemy of the good . Here’s a variation of the “primo” to the variants of the pulse power supplies, – you can leave only the current control, or use the whole thing. _________________ It’s not what it looks like Time Zone: UTC + 3 hours Who is on this forum nowThis forum is currently being viewed by: Alex_641, Bing [Bot] , Majestic-12 [Bot] , Novice user and guests: 48 Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group Russian Support phpBB Extended by Karma MOD © 2007-2012 m157y Extended by Topic Tags MOD © 2012 m157y Site tested in browsers: IE8.0, Opera 9.0, Netscape Navigator 7.0, Mozilla Firefox 5.0 Adapted to work with screen resolutions from 1280×1024 and higher. At lower resolutions horizontal scrolling is possible. If you have any questions, please contact Cat: kot@radiokot.ru ©2005-2022 Charging the car battery from the computer power supply at homeNot in time discharged car battery – a problem with which at least once, but faced by every driver. Therefore, many car owners know how to assemble a charging unit for the battery themselves. Even a power supply from a desktop computer can become a full-fledged battery charger, all it takes is some effort. How you can charge a car battery at homeThe vehicle battery is designed in such a way that up to a certain point it can receive power directly from the car. But all drivers know that the longer the device is used, the more often it needs additional recharging. Since the alternator produces a voltage of 14.1 V, and these values are only enough to maintain the performance of the battery, and to fully charge it is necessary to get a voltage of 14.4 V.
There are many options for assembling homemade chargers that can get your car back on track. Some of them involve the use of complex mechanisms, such as pulsed circuits with circuit breakers, others, on the contrary, are extremely simple, and do not require deep knowledge in the field of radio engineering. You can almost always find parts of electrical appliances at home that are used to collect the charge. For example, you can use a computer power supply disconnected from the device. It is enough to connect it to the battery with two meter wires, which should be shorted together, forming a jumper. As a source of voltage you can also use a charger from other gadgets, which has an output voltage of 12 V. The second way is to use a rectifier diode with a reverse voltage of over 1000 V and a current of over 3 A. The main thing is to observe the sequence of connecting parts so that the device does not short-circuit. So the plus side of the diode should be connected to the limiting load, which can be an ordinary 220W light bulb.
Regardless of the type of battery charger, it is important to observe polarity when connecting it to the battery. Otherwise the battery will lose its charge. Is it possible to charge the car battery with a power adapter from a laptop?The laptop comes with a power adapter, which with some additional manipulations may be converted into a charger for the battery. To charge the battery from the laptop power adapter, it is necessary to prepare some incandescent lamps, which will serve as a kind of ballast circuit. It is their burning will indicate that the circuit is connected correctly.
The circuit is simple enough, but remember the polarity. A circuit needs one ballast, but it must be chosen correctly. So it is important to start with the lowest wattage bulb. If it burns when you test-wire it, you can try a higher wattage counterpart. The correct choice is the lamp with the maximum allowable rating. The circuit scheme is simple enough, the main thing is not to forget about the polarity. So, to get a homemade charger, the “minus” of the PSU should be connected first to the lamp and then directly to the “minus” of the battery. Plus poles of the two devices are connected to each other directly, without jumpers.
Charger for the battery with their own hands from a power supply unitIn today’s world, where everyone uses gadgets and other electronics, it is not difficult to construct a mobile battery charger. Some car owners prefer to use a transformer from an old tube TV, others take a diode strip. But the most popular auxiliary means are PSUs of various gadgets. The main thing is to choose the device with the necessary output voltage parameter, otherwise there might not be enough power for charging. Extreme method of charging the battery involves the use of a power outlet. Therefore, it is worth resorting to it only in extreme cases, when there is no power supply unit on hand, which would meet all the requirements. For the charger you need to prepare:
As when using a PSU from a gadget, this method involves the observance of polarity. During connection, it is necessary to adhere to the following algorithm:
Instead of the lamp, some drivers prefer to use an electric stove at minimum power. But such a replacement is not safe. How to convert a power supply into a battery chargerUsing a PSU from a computer, as the main link of a homemade charger is much safer than a direct connection to the household network. Necessary materials and toolsTo assemble a home-made device you need to prepare:
These elements will be enough for assembling charger which can bring the battery back to life in a few hours.
Instructions for making at homeTo assemble a battery charger, you need to clearly follow the algorithm. It consists of the following steps:
The process consists of a fairly large number of steps, the execution of which requires at least a basic knowledge of radio engineering.
Always remember the safety precautions How to correctly charge the battery with a homemade chargerWhen assembling the charger yourself, you should always remember about the precautions. There are a number of rules that are important to follow when using a hand-built charger. Otherwise, the battery may get ruined and all the work will be done in vain.
If the car battery is discharged, and there is no special charger, you can make it yourself. But this requires not only knowledge in radio engineering, but also experience with electrical circuit diagrams. Battery charger from laptop power adapter On the network repeatedly posted options for using
My wife forgot to turn off the headlights Comrades, such a thing – the
50 cool car flyhacks for all occasions How to camouflage body scratches, fix a
Or maybe it’s enough to make “noise” in the doors? Let’s find out how
Charger for cars from an LED strip power supply Hello, in this article I
Scheme, how not to forget to turn off the lights in the car Message
|
