i'm already trying the integrator...the problem is that the pulse that comes from the encoder is almost an impulse! the capacitor doesn't charge enough... On Thu, May 28, 2009 at 11:01 AM, Eoin Ross wrote: > Integrator circuit. This is only to get you facing in a direction for > thought/research. > > Thats all I'm willing to help on a school project. You should approach your > professor/teacher and read your text books. > > >>> "Bruno L. Albrecht" 28 May 09 08:30:30 >>> > actually is the final project of a discipline... > > On Thu, May 28, 2009 at 8:59 AM, Thomas C Sefranek > wrote: > > > ----- Original Message ----- > > From: Bruno L. Albrecht > > To: Microcontroller discussion list - Public. > > Sent: Thursday, May 28, 2009 7:34 AM > > Subject: Re: [EE] frequency to voltage converter (FVC) > > > > > > This is actually part of a speed controlled motor controller. Know what > I > > mean? I have to control the motor's voltage in order to keep its speed > > constant. This means I'll have to compare the speed with some reference > > and > > then raise or lower the motor's voltage to keep its speed as I want > > (probably this reference will be adjustable). I should do all this only > > with > > opamps, resistors, capacitors, etc. > > By black boxes, I meant I can't use Frequency-to-Voltage ICs, I should > do > > one myself. And can't use any "digital devices", such as a > > microcontroller, > > or a A/D converter... > > > > Cheers, > > Bruno > > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist