1 / 4

MXS control june 28, 2010

Gwynneth Davidoff, Kendall Pletcher, Mary Schmidt, Amy Whitcombe. MXS control june 28, 2010. Progress. Pulse-width modulation PWM issues: Able to control PWM without GUI, but it didn’t work later Looking at time lag between ASCII file input and DAC output

oona
Download Presentation

MXS control june 28, 2010

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Gwynneth Davidoff, Kendall Pletcher, Mary Schmidt, Amy Whitcombe MXS controljune28, 2010

  2. Progress • Pulse-width modulation • PWM issues: Able to control PWM without GUI, but it didn’t work later • Looking at time lag between ASCII file input and DAC output • Appears to be a limiting threshold for updating information (~12 ms) • Reduced to 4 ms when print statements were removed • Connecting PWM and DAC output • Thinking of using a relay to switch between two voltages on a DAC, triggered by the PWM output from the PIC

  3. Questions to ask Keith • What is the frequency range you would be looking to drive PWM signals with? • How quickly do you want the ASCII file to be able to control voltages? (Right now, we are limited to a response rate of 3 ms, but we are looking into ways of improving it) • Regarding HK: Do you want to know the current and voltage going into the DC-DC converters, or just current?

  4. Next steps • Today/weekend • Continue to debug GUI/PIC connection • Make circuit to connect PWM and DAC output • Continuously updating GUI • Next week • Anything of the above that isn’t finished • Testing with MXS (“should be in the mail [yesterday]”) • Once we solidify the system we want: PCB layout, components box design

More Related