1 / 6

Physics 434 Module 1, week 2

Physics 434 Module 1, week 2. Finish (by today) the preliminary voltage-divider analysis VI. Wire up the FET current-control device. The FET: why do we need it?. The IRF511 power MOSFET Transistor. Set the voltage here…. And measure the voltage and current here. Requirements for your VI.

barb
Download Presentation

Physics 434 Module 1, week 2

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. Physics 434 Module 1, week 2 • Finish (by today) the preliminary voltage-divider analysis VI. • Wire up the FET current-control device

  2. The FET: why do we need it? The IRF511 power MOSFET Transistor. Set the voltage here… And measure the voltage and current here

  3. Requirements for your VI • Data: • current and voltage vs. applied voltage. (Nearly identical to the plot you made for the simple divider) • A hint: do not assume the “22” resistor really is! • Analysis: • Resistance vs. current for the bulb • Comments: • Beware that you will need to introduce a delay from changing the current to measuring the resulting voltage and current. Think about how to decide how much you need • The current setting of the DC voltage VI is for -10 to +10 volts: you get more accuracy if you reduce it to the range that you really need. (If you do so, this should be mentioned in your documentation) • The ACDs are by default -10 to 10; change to 0 to 5 (factor of 4 more accurate)

  4. Use vi libraries (llb files) • Get from tools | LLB manager • Use New to make a new llb file • Advantages • Behaves like a folder (in Windows at least): drag/dropdouble-click to open … • SubVI’s are automatically found • Must use to submitmultiple VI’s to catalyst

  5. Graph demo shows multiple plots

  6. Turning in your VI(s) • Edit | Make current values default – needed to record your results • File | VI properties | Documentation: write a little report, containing your name(s), purpose of the VI, implementation features, conclusions.

More Related