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Spockie-Tech
Site Admin
Joined: 31 May 2004
Posts: 3160
Location: Melbourne, Australia
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quote:
And the hobby speed controllers can take ahundred amps or so contin cos off the motors they use in there cars
I can just about guarrantee you that there is no such thing as a hobby speed controller that can take 100 amps continuous. As I said, they are habitual liars, and find the most creative excuses to artifically inflate their specifications..
If your average Joe wanders into a hobby shop and sees two controllers for sale, and one says 100 amps, and the other says 150 amps, guess which one most will buy ? Thats why the manufacturers get into this "specification racing" game, just like Car Stereo manufacturers used to.. then the Car Stero Competitions changed the rules to class the systems according to Sound Pressure Levels per watts, and suddenly all the top-end gear went the other way and started under-rating their amps and speakers so they could compete in the lower classes. talk about a back-flip..
Dont believe me ? Get out the Fet data sheets, figure out the power dissipation for the fet at 100amps, and tell me where all those watts of heat are going with their tiny little 50cent piece sized heatsinks.. or read up on that link to mosfet ratings I posted in the speed controller thread and you will understand why spec's dont always equal reality..
as to whether to use those connectors or not, that depends on what you want to use them for. They're probably good enough for a feathers drive motors as long as they have a securing method.. I think George uses something similair in Pinscher. _________________ Great minds discuss ideas. Average minds discuss events. Small minds discuss people
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Fri Sep 17, 2004 8:22 pm |
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