Plus the Mosfet banks have six high current bypass diodes and a number of smaller bypass capacitors as well. There also is a built in high current shunt for the current sensing and limiting systems. Because the batteries are installed in a battery bank, their wiring differs from an automobile. As I have a couple of those controllers that I picked up at the scrapyard, I've considered rigging up the test, just so I'd know if those are any good or not. How complicated and how expensive are you thinking? These resources are critical to the long-term maintenance and protection of your golf cart investment.
There is a complete bench test procedure in that manual. He suggested that I use a microcontroller instead of the 555 timer. That overcurrent point is selectable from 495amps to 775 amps by twisting a variable resistor. It's definitely something that anyone could do, then. Most aluminum heat sinks just dont carry heat away fast enough to keep the junction temps down at higher power level in that package size unless they are way over sized for the application. I wanted to try to make one for a car that was really simple and cheap too.
Our golf cart manuals are suitable for professional golf cart services as well as private owners. If you don't know how or when to service your golf cart, now is the time to order a manual and set a service schedule. So are the ripple capacitors. Also of note the green and white wires going to the motor had melted together. Unless you have a mill, or know how to do it with etching chemicals, that's sort of hard to do at home.
Advanced, programmable, microprocessor based motor speed controllers housed in a rugged, sealed, aluminum enclosure. Picking the correct one can be tricky, please contact our knowledgable sales staff for insight into your application. The last battery in the bank will have a connection from its negative terminal to that of the frame or golf cart controls. I don't remember exactly where on Curtis' site that I found the manual, but it's there. I will do a synchronous rectification version, which will have much less heat loss, and will be rated for higher power. What you do is replace the freewheel diodes with mosfets, and switch them on and off at just the right time, so they behave like an ideal diode. The main positive lead for the battery bank coming from the frame of the cart will connect to the positive terminal of the first battery in the bank.
I want to build my own motor controller, to control a SepEx motor seperate field coil The motor is a 36v 7. Christmas break came along, and I got bored. Do they use solid gold circuit traces and solder while mounted to cryogenic cooled heat sinks? Reconnect the battery cables to the batteries in the bank. There's a serial port for sending information to the user, like current, temperature of controller, or anything! Also, there's another guy that offered to do some for free! I would be concerned about using a 60 volt device on a 36 volt high current H-bridge motor driver system. Electric golf carts are normally run by a bank of six batteries, depending on what model car you have purchased.
The mosfets have a continuous current of 130 amps each but in practice, only maybe 70 or 80 amps each , whereas the diodes can only handle about 50 amps. First, I decided to try to make a smaller 72v 50amp controller to test on my electric bike. There is no controller we cant get and our prices are very fair. The controller also controls when the main contactor closes. Model 1227 provides extensive standard features. I had read about a 144v 600amp dc motor controller that Ian Hooper had made.
Advanced, programmable microprocessor based motor speed controllers. This is the cable that powers the engine when the cart moves in reverse. If you turn the car on with your foot on the accelerator, nothing happens. He had posted some pictures of the power section layout. It can be done but a considerable amount of additional snubbing and bypass diode capacity is needed plus substantial line side capacitor capacity for that snubber and bypass energy to go into. It requires knowing the basics of how to solder, and attention to detail, but it's not too difficult.
A loose connection with your golf cart cables will cause the current to encounter resistence, causing heat to build up and then melting your golf cart cables. I think anyone could do that part. It was pretty easy ish! The contactor came from a 24 volt pallet truck; I put a resistor in series with the coil common. Before that, I had no idea how motor controllers worked. Some battery banks are designed to hold each battery in place with a battery clip that will require a basic wrench to remove the securing nut and washer from the bracket.