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#13
 
07-11-2008, 06:13 PM
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| about the capacitor, I have used 1000uf because I have seen it at IMT-901 datasheet. I am using 3 boards with a power supply that is using 22.000uf, so 1000uf seems enough. I have bought a few boards at ebay from http://stores.ebay.de/Markus-Mechatronics and it is using only 470uF. about 7805 regulator, one is enough for 3 boards so I saved some money for summer vacations. with 3 drives it stays cool so don't worry. only try to use at least 2w resistors for sense resistors. 0.47 or 0.68ohms would be fine. 3 drives I have done produced more than 100 small engraved plates. so good luck.  |
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