Hello,

I'm new to the forum, I've been snooping on here for awhile now and can usually find answers without needing to post... until now.

I am working on a charging system for a motorcycle. It currently puts out 14.6 to 14.8 volts to the battery and the current changes as needed to charge the battery. At the most it will provide 18A or so the manual says. My problem is I need to limit it to 14.4V max, so I was shooting for 14V.

I'm very familiar with voltage regulators such as the 78XX or the 317 and these work great however they won't handle the amperage. Does anyone know of a circuit I could build that would accept the input voltage of 14.6V and provide an output of 14V all the while sustaining 18A which will change randomly?

As always I appreciate the help.
-Nick

 

Welcome to the AAC forum.

The owners of All About Circuits have elected not to host discussions of automotive electrical system modifications/enhancements due to safety concerns, the potential of legal ramifications and the possible circumvention of vehicle regulations at the state and federal level.

This thread is against the AAC forum rules, Chapter 6, as seen here:

6. Restricted topics. The following topics are regularly raised and however are considered “off-topic” at all times and will results in Your thread being closed without question:

• Any kind of over-unity devices and systems
• Automotive modifications (This also applies to motorcycles)
• Devices designed to electrocute or shock another person
• LEDs to mains
• Phone jammers
• Rail guns and high-energy projectile devices
• Transformer-less power supplies

This can be found in our Terms of Service (ToS)

Automotive modifications of any kind are strictly forbidden. Therefore, this thread will be closed.

Please try to understand the reasons behind this action, and feel free to browse and use the forums.

You might find answers to your questions in one of these forums:

http://forum.allaboutcircuits.com/showthread.php?t=54400

Another good forum that shares many of the same membership is http://www.electro-tech-online.com/ . Good luck.