Re: Cavalier Electrical Accessory

Posted by DavidPackard On 2014/3/31 15:10:06

I'm familiar with those units. The folks that build them suggest not to use them on devices with high initial current flow such as incandescent lighting. They do have an excellent track record powering the type of devices you mentioned.

The circuit I'm working on would be on the point side of the tachometer where the switching frequency is in the order of 100 Hz. In either the tach application or with steady state signals like the stop, turn, or tail lights the load on the 6 volt side will be something like 0.02 A, which should not jeopardize the wire harnesses or switches of the car.

The load on the 12 volt side will be totally dependent on the equipment installed, however I can limit the current through my circuit to approximately 0.3 A by driving a relay and allow that set of points carry the full 12 volt load. I've got 6 volt relays up to and including an 80 A rating. The voltage rating of the relay in this case refers to the voltage required to activate the switching feature of the relay. The main set of contacts have sufficient dielectric characteristics to withstand many times the anticipated 12 volts.

dp