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41 Wind turbine phone charger
Charles Hummel
Kemal Ercikti
Sachin Reddy
Dongwei Shi design_document0.pdf
Group members: Charles Hummel chummel2
Emre Ercikti ercikti2
Sachin Reddy ssreddy2

A small wind turbine with a total height of half a meter will be used to generate AC power which will be converted to DC power. The DC power will charge (ideally) a removable battery pack that would have an output for charging a phone.

Solar phone chargers are great but they do not work when there is no direct sunlight. This turbine will fill that gap.

For this project we will:

1. Create power electronics that will convert the AC power to DC.

a) This circuitry will also include protection measures such as short-circuit protection

2. Implement sensors that detect wind speed and direction and software that will suggest optimal turbine turbine orientation.

3. Using the sensors implement, a cut-off mechanism to keep the generator and/or power electronics from being damaged from excessive wind speeds.

4. To scale the project's difficulty we would design our own battery pack using SLA's and implement a battery management system as well.

The mounting system will be a removable strap that would let the user secure the turbine as well as holes in the base that pegs could fit through to secure to the ground if need be.

RFI Detector

Jamie Brunskill, Tyler Shaw, Kyle Stevens

RFI Detector

Featured Project

Problem Statement:

Radio frequency interference from cell phones disrupts measurements at the radio observatory in Arecibo, Puerto Rico. Many visitors do not comply when asked to turn their phones off or put them in airplane mode.


We are planning to design a handheld device that will be able to detect radio frequency interference from cell phones from approximately one meter away. This will allow someone to determine if a phone has been turned off or is in airplane mode.

The device will feature an RF front end consisting of antennas, filters, and matching networks. Multiple receiver chains may be used for different bands if necessary. They will feed into a detection circuit that will determine if the power within a given band is above a certain threshold. This information will be sent to a microcontroller that will provide visual/audible user feedback.

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