DC to AC

This demonstration shows how to convert DC to AC using an RLC circuit. A battery is used to charge up the capacitor, then a switch is flipped and the circuit discharges showing damped AC.

Setup:

Set the whiteboard on the lab table. Connect the webcam to the projector and set it up to view the whiteboard from above.

Using circuit scribe build the circuit shown above. Connect channel A of the pico scope across the capacitor and channel B of the pico scope across the inductor.

Open the pico scope software and turn on channel B. Set both channels to 5V and DC. Choose 100 micro s per division and 100 kS. At the bottom of the screen, Trigger should be set to Auto.

Turn on the battery and close the switch to charge the inductor (you should see a voltage). Open the switch to see an AC voltage. Hit Stop to view this.

Notes:

Be sure that all the grounds for the pico scope are connected at the same point as the ground for the function generator!

Courses Used In:

• PHY 10320

• PHY 20435

• PHY 30220

Discussion and Polling Questions:

Coming Soon

Equipment Needed:

• Circuit Scribe Kit

• Whiteboard

• Pico Scope

• Two BNC to Banana Cables

• Webcam

• Demo Computer

• Switch

• 100 ohm Resistor

• 4.7 micro Farad Capacitor

• 1 H inductor