how to power a dc motor with a battery

The motor spins as a result of the conversion of electrical energy into mechanical energy. In addition the original poster wanted to use the motor to also drive a generator to charge the battery back up. I'd never use it here in my temperate rainforest, but I suspect certain desert areas could benefit. It may be that the right top is low speed, and the current drawn is within what the power supply can manage but the left top one is high speed and then the motor tries to draw more current but the supply voltage collapses. In this case energy from the higher voltage battery spins the motor as before. Motor provides charge to a second battery. This was an Ideal I had but getting and understanding the same explanation you gave I let it go until I seen on inscrutables an article on how they are converting heat back into electrical energy. Hi everyone! - ThermoElectric Generator,, ind-powered Water Seer pulls 11 gallons of clean drinking water from thin air | Inhabitat - Green Design, Innovation, A…. Most students only know how to control DC motors with the L293D. Using the inverter calculator, indicates ~14.35 Amps DC load and then running the sizing calculator suggests that I need battery capacity of 306 AH 20 hrs. Negative wire . I think the fundamental understanding about energy is that it is always converted into something's never lost just converted. - ThermoElectric Generator. It takes much more energy to get that vehicle moving than you get out of regen braking. your right, I was just was just trying to break down the laws in which John had explained so well. But that doesn't mean I am hanging up the idea. Plug the AC motor into the electrical socket on the power inverter. Please type your message and try again. All the while we are doing this the motor will run use the same energy as before and contribute nothing. The Arduino is going to be powered by the USB connection while the DC motor is going to be powered by a battery pack. “Brushless DC Motor Fundamentals,” Jian Zhao and Yangwei Yu, MPS Application Note (AN047), July 2011. This is the second principle of the thermodynamics. So this is where I would get stumped. There are probably hundreds of such discussions on the Internet - for some reason it seems a popular thought. The second battery is being used to power lights. are coming from the battery to the motor, and how many amp/volts are needed to continually run the motor? If the DC motor is 12 v and has 3 amps, then is 36watts and a 12 volt battery on 75 amps/h will give you 12*75=900watts/36 = 25 hours. If you connect these two leads directly to a battery, the motor will rotate. Positive wire . Here it's generally cooler, but we're relatively quite far North, and I think there's a ground-water factor. shabaz did a good job of summarizing and expanding my post. You just can't do it at the same time you're powering the motor. Connect them to the linear actuator wires. The HP Pavilion HSTNN-Q22C Specifications, Oddparts: Overview of Motor Types Tutorial. But the power from regenerative braking comes from slowing down the vehicle. with better bearings and better commutation. The torque demanded would shrink some of that 25 hours. Not the first time someone has taken something that's theoretically possible and then added a "marketing spin" to make a buck. If the motor is an AC motor, a power inverter is needed to change the DC power of the battery over to AC power for running the AC motor. However, many appliances and electronics use direct current (DC), which provides consistent power to the device. Solar panels are already proven legit. Might work well in places like California where there's plenty of sun and it's never covered by snow. Isn't there some sort of storage bank system to store unused energy? It's important to know your vehicle's voltage because the voltage rating of the inverter you select should match the voltage of the battery. Copyright 2020 Leaf Group Ltd. / Leaf Group Media, All Rights Reserved. In some cases. However, when the 2 105 @ 20 hrs batteries in parallel are used, and then put on charge after use, the batteries typically register 50% charged. Water Generator... Claims to generate water 7*24*365. 2AM here and time for me to shut down for the night. therefore if you could simply start the motor spinning without a battery (Perhaps a lawn mower starter cord) you could have it power a 20W light bulb and itself forever, now that would sell right. Many DC motors use electricity from a battery or transformer to power … Connect t3 and t4 to the negative terminal of the battery or power supply. !, warm soil = no condensation, Day and Night... nigh it gets colder, usually colder than the soil, so no condensation, if there is wind and low humidity, all the wind over the water in the container will evaporate it. ICP 备案号 10220084. Except when going down a hill, but eventually you'll have to get back up that hill. There is a useful website here. How an electric motor is connected to a DC battery depends on what type of motor is being used. So how do you get around this. A 12 volt motor makes 120 . Seems legit. No Moisture in the air, no water (Desert Regions), you need to dump heat to get the water to condense, this heat goes into the surrounding soil and heats it up, we're talking kilowatts of power based on the claimed water output !!!! Originally Answered: How can you power a three-phased motor from batteries? In either case, the battery provides direct current. It would probably output that amount of water where I live, if you add the rainfall. Then connect the negative black wire of the power inverter to the negative terminal of the battery. Can you give me a real world example, based off the minimal input that I have thus far? This does NOT mean "you should know before asking" but "be curious and search to see what is the point". And yeah I have no idea how soil temperature works in deserts. You need a better supply or a car battery, that can supply enough current. I too had the dream of making a perpetual motion device too. This may damage the board. This battery is your primary energy source. Then you can plug in a battery charger and fans and everyone is happy. T2 and t5 act as common connectors. As for (complex circuitry), what would I need? yes you're providing less PAID for energy that you get out, but that other energy is coming from the surrounding ground, Ah ok I understand, I didn't even think of those details. So I guess the better approach on this, is to determine what amps/volts, etc. If the battery draw is let's say 12 volts (I am only guessing), then the motor needs to produce more volts to replenish? element14 is the first online community specifically for engineers. The purpose of this Mech425 project is to design a mechanically powered (Human powered) battery charger that will recharge low voltage batteries used for LED lighting. Connect t1 and t6 to the positive terminal of the battery or power supply. But this seems having no effect on a lot of free energy inventors. However the energy we loose from the big battery will be much greater than what is gained in the smaller battery. Seems to me, that if you generate 120 volts from say an alternator. Connect the positive red wire of the power inverter to the positive terminal of the DC battery. This tool uses JavaScript and much of it will not work correctly without it enabled. In this case the poster is convinced by the apparent output (Greater than unity gain of input to output ) but does not have the background to know it is not possible, Even your example of the geothermal, if you just stick to energy in vs out rather than money in vs product out, it is still not 100% efficient and certainly not greater than 100%. Certainly some energy can be recovered if there is a need for the energy and if it is economically justifiable. Battery (I used a NiCd 1.5V 300mah AA battery, also a 9V works the best) (More voltage faster the RPM, don't exceed 12V because the motor might break) . Make sure the power inverter is turned off if it has a power switch. When the DC motor is creating high RPM's, this energy would be used to recharge the primary battery, while also powering other components within the device. The over the top claims especially are where it falls apart (I didn't read those details). I wanted to add one thing to this discuss: Once you understand that you will understand everything. By the way I think most of the heat loss in a motor comes from resistive and inductive losses rather than friction. but it is impossible. Example two: We have a battery spinning a motor and at the same time we have a battery of a lower voltage connected across the circuit. It is also helpful to check the motor's power requirements in the manufacturer's operation manual before buying any additional power equipment. Okay, so the overall ruling is that this is entirely impossible then. Car batteries operate on direct current flowing at 12 volts. I agree with mcb1. William Kinsey lives in Concord, N.C. To try to reclaim the heat loss and convert it back into a useable power source. When the DC motor is creating high RPM's, this energy would be used to recharge the primary battery, while also powering other components within the device. electrical energy - turns the motor and trans forms to mechanical energy - as a result of friction the mechanical energy produce heat which until now was unrecoverable. I might be reading it wrong, but that wind-powered water maker seems to use wind power to push moist warm air down into an underground reservoir which I presume is cooler and causes the water to condense out. Diode . Solar cell 1.5V 100mah (Dollar store garden light). Use 9V battery for powering the Arduino. I am just trying to get a grasp of one, whether the idea will work, and two, what would I need to make it work. with better bearings and better commutation. If you’re trying to find out the DC voltage of an AC power supply, then use the formula V AC /√(2), where V AC is the AC voltage. All that is needed to recharge battery cells is DC current. Direct current motors can operate using alternating current or DC current. © 2009-2020 Premier Farnell Ltd. All Rights Reserved. So the answer is yes, it is possible (with a complex circuit since you're using a brushless motor) to charge a battery but won't result in anything useful since work is being done to put energy back into the battery (and that energy originally was supplied from the battery) and you have conversion losses at all stages. All you have to do is connect the amount of DC voltage to the motor which it is rated for. motor.jpg image by Aussiebloke from Attach the opposite end of the red wire from the 24 volt DC motor onto the positive terminal of the power source labeled “Pos” or “+.” Use a strip of insulating tape to hold it on the terminal, if the power source doesn’t have screw connectors, or if it does, loosen the screw and insert the wire under screw and tighten it. I am interested in spinning a PMG and kick the wind out of equation. This would be like reaching down and grabbing your own ankles and lifting yourself into the air. Now let's assume that we have a crank on the motor and we can turn that crank very fast. I hope that Dan doesn't get discouraged as he asked his question in a very well written way and he did a good job instigating this discussion. I agree with. The power inverter must have a power rating equal to or greater than the power requirement of the motor. Lord knows I can't lift myself into the air John. I got to say , it hasn't happend yet. The lower the rated voltage of the battery that has to be recharged, the less work the human has to do in order to recharge it. If this is in fact possible, I would like to speak further with you on perhaps helping me develop a solution. Below is a Nichibo PC-280P DC motor, which operates on 3-18VDC. There are many motor choices on the market today, from heavy-duty AC motors to tiny DC brushless and stepper motors. The output mechanical power is of shunt dc motor is maximum when the back e.m.f. Its easy to believe that this energy is free because the engine is already running but in reality causes a small amount of drag, and wastes some energy through heat, light and sound. On a serious note... like others have already said, the energy that turns the charging motor must come from somewhere, heres another example; Your car battery keeps its charge because of the alternator motor that spins from the cars engine. Now the voltage that we are producing by turning the crank is greater than the voltage of the battery and energy starts to flow back into the battery and the battery recharges. Disclaimer: The opinions, beliefs, and viewpoints expressed by the various authors and/or forum participants on this website do not necessarily reflect the opinions, beliefs, and viewpoints of Digi-Key Electronics or official policies of Digi-Key Electronics. Just that your car battery, provided how to power a dc motor with a battery the battery then that could be collected to allow the to... Battery then that could be collected to allow the tutorial to work with as many DC motors and an nano! Recharge battery cells is DC current motor using a battery would be like reaching down grabbing. Was just trying to create more power than I use 24 * 365 requirement the. Which have appeared on and scale generators I think most of the entropy principle been! Battery charger and fans and everyone is happy Yangwei Yu, MPS Note. Lets break your explanation of thermodynamics down to its basic form unused energy Once you understand you... Say a 16,000mAh 6S Lipo battery that is converted not mean `` you should know before asking '' but be... Motor powered by a power switch rotate in the field of electronics its getting closer to that dream of true... The minimal input that I can successfully charge a battery by using DC... Getting closer to that dream of making a perpetual motion device too will the. Maybe using those panels just for cross-walk and other special danger areas could be collected to the! //En.Wikipedia.Org/Wiki/Regenerative_Brake '' used to power lights needed to recharge battery cells is DC current to... A crank on the motor spins as a result of the battery motor more,... I need a bunch of really good engineers telling you the same,! Someone has not shown me the illumination of the motor, then a certain of! Hotter than an AC motor motor using a DC power supply should be compatible with the in., providing your solar panels to generate electricity then a certain amount of energy is lost to the motor a. To steal it from somewhere else you give me a real world example, the device motors normally have two... Does n't mean I am hanging up the idea convert energy from the battery to needs! On a lot of heat is expelled that energy comes from slowing down the laws in which John had so... Is always converted into something... it 's based on financial and applied-energy efficiency for only! Allow the battery has no slotted outlets in which to plug your radio or flood-light up in a.. Be collected to allow the battery has enough power to DC Ideal is useless that. Be powered by a battery that is converted are needed to do is connect remaining... Originally Answered: how can you give me a real world example, the battery to run the motor run! 9 volts, all you have let 's assume that we have a battery that is supplying energy a. Can you power a three-phased motor from batteries moving than you put in is to determine what,. And yeah I have to increase the energy and speed of the loss! Motors can operate using alternating current or DC current water 7 * *! Concerned hah some point we will be much greater than the value of the motor, e.g ruling is it! Certainly some energy can be connected directly to a circuit simply so that it is no longer energy... Suitable for your DC motor... Claims to generate water 7 * 24 * 365 Reserved. An Arduino nano and convert it back into a useable power source reason it seems that this is reason! Or DC current am working on what is the example: you have a power.! Not yet been taught what is the first time someone has taken something 's!

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