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bananasiong said:Oic.. i think the relay is more suitable for me. Is the speed controlled by 555 timer? How does it work?
Yes, i know.. Then how to control speed if the bjt is used?Nigel Goodwin said:With the relay example you gave above, there is NO speed control, only directional control.
bananasiong said:Yes, i know.. Then how to control speed if the bjt is used?
how to drive Vcc with transistor???you would need a high power transistor or FET to drive Vcc
bananasiong said:how to drive Vcc with transistor???
bananasiong said:oh.. then the base to the microcontroller, then the speed is controlled by it. right?