Embedded Systems Conference
Breaking News
Comments
Newest First | Oldest First | Threaded View
<<   <   Page 2 / 2
resistion
User Rank
Author
SAR rating?
resistion   8/4/2014 10:35:59 PM
NO RATINGS
I share tb100's safety concern. What would be the effective SAR rating for this charger?

tb100
User Rank
Author
focusing RF power
tb100   8/4/2014 9:24:42 PM
NO RATINGS
I'm a little leary of transmitting focused RF power. On the other hand you could put your burrito on top of your phone so it would receive some of that focused power to heat it up.

On a more serious note, I've always wondered if a tiny, very-low-power device could harvest power from all the RF being broadcast all over the place these days: WiFi at 2.4GHz, 5GHz, all the various cell frequencies, even the old UHF,VHF radio and television.

Certainly it is possible to build a tank circuit to capture some of this power. I'm just wondering if it is enough to do anything with. Maybe you could have a sensor that just collects miscellaneous RF power for a few hours, then it could broadcast its data for a few microseconds.

rick merritt
User Rank
Author
Limited but cool
rick merritt   8/4/2014 6:40:21 PM
NO RATINGS
Who else is targeting this RF approach?

<<   <   Page 2 / 2


Radio
NEXT UPCOMING BROADCAST
In conjunction with unveiling of EE Times’ Silicon 60 list, journalist & Silicon 60 researcher Peter Clarke hosts a conversation on startups in the electronics industry. One of Silicon Valley's great contributions to the world has been the demonstration of how the application of entrepreneurship and venture capital to electronics and semiconductor hardware can create wealth with developments in semiconductors, displays, design automation, MEMS and across the breadth of hardware developments. But in recent years concerns have been raised that traditional venture capital has turned its back on hardware-related startups in favor of software and Internet applications and services. Panelists from incubators join Peter Clarke in debate.
Flash Poll
Top Comments of the Week
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Special Video Section
The LT®3042 is a high performance low dropout linear ...
Chwan-Jye Foo (C.J Foo), product marketing manager for ...
The LT®3752/LT3752-1 are current mode PWM controllers ...
LED lighting is an important feature in today’s and future ...
Active balancing of series connected battery stacks exists ...
After a four-year absence, Infineon returns to Mobile World ...
A laptop’s 65-watt adapter can be made 6 times smaller and ...
An industry network should have device and data security at ...
The LTC2975 is a four-channel PMBus Power System Manager ...
In this video, a new high speed CMOS output comparator ...
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...
General-purpose DACs have applications in instrumentation, ...
Linear Technology demonstrates its latest measurement ...
10:29
Demos from Maxim Integrated at Electronica 2014 show ...
Bosch CEO Stefan Finkbeiner shows off latest combo and ...
STMicroelectronics demoed this simple gesture control ...
Keysight shows you what signals lurk in real-time at 510MHz ...
TE Connectivity's clear-plastic, full-size model car shows ...