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- From: tod@cco.caltech.edu (Tod Edward Kurt)
- Newsgroups: sci.electronics
- Subject: Voltage to PWM for DC motor control?
- Date: 20 Nov 1992 07:31:00 GMT
- Organization: California Institute of Technology, Pasadena
- Lines: 18
- Message-ID: <1ei47kINN75s@gap.caltech.edu>
- NNTP-Posting-Host: sandman.caltech.edu
- Keywords: PWM
-
-
- Hey everyone,
-
- Here's my dilemma: I've got a voltage that varies (say from 0-5v) and
- I'd like to have this voltage control a DC motor via Pulse-Width Modulation.
- I've got the actual high-current motor driver (MOSFETs) done, I just need some
- pulses for it.
- It seems like there should be a chip that does all this, has an
- adjustable PWM frequency, and provides a way to drive the motor both forward
- and reverse (2 seperate outputs, one for forward, one for reverse)
- Any ideas? Surely this must have been done thousands of times. All
- help appreciated. BTW, this is for an Electronic Speed Control (ESC) for an
- RC car.
- Thanks,
- Tod
-
- tod@sandman.caltech.edu
- tkurt@vlsi.caltech.edu
-