Path: utzoo!utgpu!watmath!clyde!att!rutgers!topaz.rutgers.edu!hobbit From: hobbit@topaz.rutgers.edu (*Hobbit*) Newsgroups: sci.electronics Subject: Variable speed motor control Message-ID: Date: 11 Jan 89 19:08:09 GMT References: <288@heurikon.UUCP> <3660001@hpirs.HP.COM> Organization: LCS Expert gang, Rutgers Lines: 12 ... not to mention what the inductive backlash can do to your *transistor*! The appropriate fix is a clamp diode around the motor, I suppose, but that raises another question: Does the motor behave differently when it's allowed to backlash, instead of being clamped? And another question I just thought of: What exactly does placing a clamp diode around the *transistor* do? It seems to me that the motor would try to backlash through the power supply. I often see these extra diodes as part of Darlington packages, etc. _H*