MIT develops tri-source energy harvest control IC
July 12, 2012 // Peter Clarke
Researchers at Massachusetts Institute of Technology (MIT) have developed the control circuitry for an energy harvesting platform that can work with natural light, heat and vibrations.
The ability to combine solar, thermal and vibration energy sources is useful because many of these sources are intermittent and therefore a multisource architecture is able to capture and deliver power under a wider circumstances. However, the energy levels and optimization and control strategies are also diverse. According to MIT thermoelectric harvest sources typically produce only 0.02 to 0.15 volts, while photovoltaic cells generate 0.2 to 0.7 volts while vibration sources can produce up to 5 volts.
Up until now the simplest and commonest strategy has been simply to switch between the highest energy generation source, but wasting the energy input from other sources.
Co-ordinating the energy sources in real-time to produce a constant usable output requires a specialized control system which has been designed in a chip developed by doctoral student Saurav Bandyopadhyay, under MIT professor Anantha Chandrakasan, is described in a paper published in the IEEE Journal of Solid-State Circuits.
It has a dual-path architecture allowing energy to be used directly or to be stored and the switch matrix and the control circuits are implemented in a 0.35-micron CMOS process.
Dual 13A or single 26A μModule regulator integrates digital power system management
July 25, 2014
Datacenters and server farms contain vast amounts of digital electronics, such as ASICs, FPGAs and CPUs. Powering, monitoring ...
What's that smell? An app for that soon, says Sensirion
GE phosphor powder creates more vibrant LED displays
Foremost Electronics to distribute NKK's switches in the UK
Traffic light switches to smart mode
Sony investing in stacked image sensor manufacturing capacity
July 24, 2014
Sony Corp. has said it plans to invest 35 billion yen (about $340 million) to increase its production of stacked CMOS image ...
The Filter Wizard: 'three-legs' and the 4-20 mA current loop
Set-top boxes morphing into MHGs
Imagination positions itself for 802.11ah for the Internet of Things
- Testing GPS with a Simulator
- DSM presents: Select the best plastic for DDR4
- Dual 13A μModule Regulator with Digital Interface for Remote Monitoring & Control of Power
- Exploring the Business Model Evolution of High-Tech Equipment Manufacturers
InterviewCEO interview: China, not Apple, is way to go, says mCube CEO
Ben Lee, CEO of MEMS startup mCube, explains why he wants to spend $37 million on being a supplier of sensors to Chinese ODMs and avoiding a design win with Apple or Samsung.
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, Altium Ltd is offering EETimes Europe's readers the chance to win one TASKING VX-Toolset for ARM Cortex-M Premium Edition, normally licensed for 2.395 Euros, for ultra-rapid prototyping and code development around ARM Cortex-M based microcontrollers.
The VX-toolset for ARM is the first TASKING compiler suite to receive the Software Platform technology, which is seamlessly...Read more
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.