in this moment i have 2 bipolar stepper motors from an old epson stylus 600 that a friend gave to me. this motors works with 42 volts but i discovered that they work fine at 12 volts. the measurement of phase's resistance is about 5 - 6 ohms, that represents 2 and a half amperes. the first time i tried using the original motor controler (a disgusting ic with 28 pins and high amount of signals to control). The B plan was a array of 4 discrete h bridges with transistors ( 2SC1162 and 2SA715) , but i noticed that they got very very hot at first, and some minutes later they just blow out - specially the A715. i have some integrated h bridges from freescale ( 33886). In colombia is too hard to find that kind of stuff, and i dont want to broke them... (jeje, i dont have a second chance to use them). so, should i connect the stepper motors to them or i have to do something else????
please i need some help.... thanks..
ahh, sorry, i know that this forum is about hc08 microcontrollers, but i couldn´t found another way to expose my problem... plus, i want to control the bipolar steppers with hc908gp32 microcontroller....
Message Edited by mauricio2346 on 2007-07-29 05:43 AM
Message Edited by mauricio2346 on 2007-07-29 05:44 AM