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CADmancan
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I believe its possbile but wanted to ask if its possible to light a single LED light by and RF signal if its strong enough. I know there are LED's that are as low as 3 milliwatt that could work. Thanks in advance.
CADmancan said:I believe its possbile but wanted to ask if its possible to light a single LED light by and RF signal if its strong enough. I know there are LED's that are as low as 3 milliwatt that could work. Thanks in advance.
It's possible to power much more than a single LED. The dependencies include the power of the transmitter, the gain on the transmitting antenna, distance between transmitter and receiver, and the gain of the receiving antenna. 148km link here:CADmancan said:I believe its possbile but wanted to ask if its possible to light a single LED light by and RF signal if its strong enough. I know there are LED's that are as low as 3 milliwatt that could work. Thanks in advance.
At Intel, Dr. Smith, working with the researcher Alanson Sample of the University of Washington, created an electronic “harvester” of ambient radio waves. It collects enough energy from a TV station broadcasting about 2.5 miles from the lab to run a temperature and humidity sensor.
The device collects enough power to produce about 50 microwatts of DC power, Dr. Smith said. That is enough for many sensing and computing jobs, said Professor Otis. The power consumption of a typical solar-powered calculator, for example, is only about 5 microwatts, he said, and that of a typical digital thermometer with a liquid crystal display is one microwatt.. ...
whocouldshebe said:I love the satellite dish example. I bet you could get lots of power off of that. Unfortunately I have already converted my 2 satellite dishes to a Death Rays using 1/4 & 1/2 inch square mirror tiles.
Yes, it is possible to power a small LED with an RF signal. This technique is known as wireless power transfer and it utilizes electromagnetic waves to transmit energy to the LED.
Wireless power transfer works by using an RF transmitter to create an oscillating magnetic field. This field induces an electric current in a receiver coil attached to the LED, which then powers the LED.
One of the main benefits of using an RF signal to power an LED is that it eliminates the need for wires, making it a more convenient and portable option. It also reduces the risk of electric shocks and allows for more flexibility in design.
Yes, there are some limitations to using RF signals to power LEDs. The distance between the transmitter and receiver coils is a crucial factor in the efficiency of power transfer. Additionally, the power received by the LED decreases with an increase in the number of obstacles between the transmitter and receiver.
Yes, it is generally safe to use an RF signal to power an LED. The amount of power transmitted is relatively low and does not pose a significant risk to human health. However, it is important to follow safety guidelines and regulations when using any type of wireless power transfer technology.