Buy Online - AOC M2060SWDA2 - AOC Pro-line M2060SWDA2 - LED monitor - 19.53Inch - 1920 x 1 from Ireland's Online Computer Store, FREE Delivery on orders over Past City Controllers. Go to Controller History; Tom Bringhurst (1903-1908) On July 1, 1903, the day that the Office of the City Controller was created, Tom. High Speed electric motors . DCI'll just put this plainly- you can't use an AC motor in a go- kart. Sure, it would be technically possible, and some electric cars use AC motors, but those are with $1. The reason is that AC is different from AC. AC stands for 'Alternating Current. It's used because it transmits long distances better along wires (from the power plant to you) and doesn't electrocute people quite so badly. DC stands for 'Direct Current' and is what comes out of a battery. It's plain electricity, and it's what you want to use for a go kart. To get more technical, AC is called 'alternating' because the polarity (the + and - ) reverses- in the AC in your house, it happens 6. An AC motor needs this. Now, it is possible to make AC out of DC. Most people have seen inverters, which you can plug into you car's cigarette lighter and then plug in a laptop, blender, whatever. Why not just use one of those? The answer is current, and power. For a good electric go- kart, your power demands are going to be around 1. Because of surge current. An electric motor is an 'inductive' load. Have you ever seen your kitchen lights dim when the refrigerator or microwave comes on? That's because those are both inductive loads, and inductive loads require a TON of power to start. The timing controller (“TCON”) receives image data and converts the format for the source drivers’ input and also generates controlling. Update 3/5/2015: See our related post: Windows 8.1 and the ASMedia USB 3.1 XHCI 1.1 Host Controller Important Notice: As of Windows 8.1, we don't recommend. Electric motors for golf carts, utility vehicles and NEV's. Electric vehicle consulting and testing services. DirectDial.com offers the best prices in Canada on desktop computers, notebooks, laptops, workstations, thin clients, NAS servers, Hard Drives, Dell, HP, Lenovo. Say some electric motor might need 2. Your 1. 00. 0 watts kart motor starting under load might need 5. Go price a 5. 00. Yeah, you don't want to do that. You might think that maybe you can make it work even though some people say it's a bad idea- trust me, I'm one of those people who chases down bad ideas to see what will happen. The graphics display resolution is the width and height dimensions of an electronic visual display device, such as a computer monitor, in pixels.So to be clear, you can't reasonably use any AC motor in a kart unless you want to go no further than your longest extension cord. That means don't bother with any motor marked AC or which comes out of a washing machine, belt sander, or anything that plugs in to the wall. There are two exceptions to this: treadmills and really loud power tools. Most treadmills use a 9. ZyXEL’s next generation WLAN controller, the NXC5500, is capable of extending networks flexibly and fulfilling different deploy requirements with excellent Access. Digital View designs and manufactures LCD display controllers and digital media players, as well as cutting edge accessories to deliver to highest quality digital. The Oculus Rift may look like a relatively simple device but it's actually a pretty amazing piece of kit packing a wealth of cutting-edge tech. DC motor- the treadmill contains a rectifier which converts the AC to DC. Loud power tools like angle grinders and circular saws use a motor called a 'universal motors' which can operate on either AC or DC. I wouldn't use either a treadmill or universal motor either. They are made for 9. US) and not very powerful. While a treadmill motor might seem like it's powerful, consider that you're going to have to carry around at least seven batteries (of car battery size) to get enough voltage and power. It's the same as with the inverter- technically possible, but as a DIY go- kart maker, it's not what you want. OK, that's all bad news. Well, there are plenty of DC electric go cart motors out there perfect for go- karts. What should you look for in a DC electric go cart motors? The lower the voltage, the fewer batteries you have to carry around. Also, if the rated voltage is lower, you can overvolt the motor, which gives you more power. Say you get a 2. 4v motor- you could run it on 3. Could you run it on 4. Why? Well, putting that extra voltage in a electric go cart motor causes extra current to flow, which is where your power comes from. This is a problem because the more current that flows, the hotter the motor gets- and when it gets too hot, it will burn up, explode, and leave you standed. What happens is that the insulation in the electric go cart motor is rated for a certain lifetime (say 2. If you double that temperature, that rating may drop to say, 1 year. If you get it really, really hot, it might fry in ten seconds. Don't overheat your motors. You could do a 1. You could do a 2. You could do a 3. I wouldn't put more than 4. DC. A person with dry fingers can touch both terminals of a 1. However, do it with 1. That's because it takes a certain amount of voltage to overcome your body (especially your skin) resistance. Once there's enough voltage to overcome that resistance, you're being electrocuted. It only takes 0. 0. If you're going to make an electric go kart, you need to educate yourself on electricity safety. I won't write that book here, but go read up on it- and don't put more than 4. Where can you find good motors for electric go karts? D& D Motor Systems, Inc!! The last thing I'll talk about with electric motors is their power ratings. There are two important things you need to know- electric motors are rated for continous power, meaning they can make that power all day, all night, for years on end. Gas engines are rated on instantaneous power, which is how much than can produce for a moment. Secondly, electric motors produce maximum torque (the force with which it spins the wheels) at zero RPM. Have you ever ridden a two- stroke dirtbike? All the power comes around 5. THEN you get power. Electric motors are the opposite- you get all your acceration at the very start, and it tapers off linearly as you speed up. This makes for very fun take- offs if your batteries, controller, and motor are up to it. What this means is that you have to think about electric power ratings differently. A Harbor Freight 6. HP gas motor might be fun, but a 6. HP electric motor is nearly 5. W = 1. HP) and will rip your face off and melt your batteries. You can use much smaller HP rated electric motor than you would a gas motor, and have the same amount of fun. So, how do you throttle an electric motor? You have three options: on/off control (likely to fry something), progressive on/off control with multiple batteries, and a controller. On/off control is where you just have a big switch (or more likely, a big relay or contactor) and you get full power as soon as your throw the switch. I wouldn't recommend this, as the surge power phenomenon which I mention above means that you're switching on a LARGE amount of current all at once, and quite frequently what this will do is actually weld the contacts of your switch in the closed position, which now means that you're sitting on a kart which is at full throttle and won't turn off. I know a person who tried something like this on an electric motorcycle and has the scars to prove it. Unless it's small motor and big big switch, I'd avoid this. How about progressive on/off control? Simply, this means that you are switching on your batteries one at a time. Say you're running a 2. You'll have three 1. What you'll do is have three switches (relays). One will switch on the first 1. The second will switch on both the first and second, giving you 2. The last will switch all three batteries into the circuit, giving you full power. This is much less likely to kill you.. I won't draw up a diagram for you, but there are some out there to look up. I'll warn you that if you just draw one up, it's easy to wire things up such that you are dead- shorting a battery, which could weld your contacts cause the battery to explode if you are unable to break the circuit. Be careful with this because your first battery to be switched on is going to drain much faster than your last battery. You will need to charge your batteries individually (not in series) and stop driving immediately when your performance with the first battery . You will permanently damage your batteries if you over- discharge them. Lastly, you can use a controller. This is the best option, and predictably the most expensive. Your best bet is a golf cart controller. They are made for duty like this and don't require a special radio input like a brushless controller does (just a potentiometer, which is a simple electronic component). These can be had on ebay, and the brand you're likely to have luck with is Curtis. Do your research on your controller and make sure it's for a PMDC motor (Permanent Magnet, Direct Current) If it's for a series motor, that's OK (and series motors are OK to use) but you'll have to study the wiring diagram carefully and read up to hook everything up properly. You can also find electric bike and scooter controllers, but these are likely to be too small to use for a 'fun' kart unless you're making something for your eight- year- old that weighs 6. Lastly, you can get motor controllers for combat robots from the same site I linked to for the motors. These are a good option, but expensive again and require a home- made throttle, because they're meant to interface with a radio. This would be a good option if you found a cheap big DC motor and don't mind spending some $$$ to get to use it. You may not overvolt controllers. The max nominal rating is the max rating, and that's it. A controller can be instantly destroyed if its voltage rating is exceeded, even more a moment. Manufacturers build in a little bit of leeway because a 2. The last thing I'll talk about is batteries. Unless you're more advanced than someone who needs the info in this post, you're going to use lead- acid batteries. This is the same technology as a car battery. Don't use car batteries, though, because they're the wrong type. There are two kind of batteries here- starting batteries and deep- discharge batteries. A car battery has to supply an enormous amount of current for about three seconds when you start the car, then spends the rest of its life either being charged by the alternator, or supplying a microscopic amount of current to keep your car radio presets in memory. Car batteries are built for this duty, and if you try to use them on a kart, you'll have fun for about ten minutes, then the batteries will die- and not just being discharged, they'll be permanently damaged. Don't try this unless you want to be disappointed or will be happy with a short- lived, expensive project. If you've got a stack of car batteries you could use them for testing, but that's about it. Also, car batteries contain liquid sulfuric acid, which can spill out more easily than you think. If it gets on you, it will make you go blind, burn you, refinance your mortgage at 1. Don't mess with acid. By contrast, you want to be able to ride your cart for, say, 3. For this, you need a deep- discharge battery. The only car batteries that are good for this are Optima Yellowtop or Bluetop batteries, or similar. Timing Controllers « Himax Technologies, Inc. Timing Controllers. The timing controller (.
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