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.
MOSFET failure protection for a single output polyPhase converter
August 30, 2015
The low output voltage rails in many of today's leading edge communication, networking, computer and industrial systems must ...
Apple joins Pentagon alliance to develop wearable tech
Single material layer process lowers LED manufacturing costs
Aquion Energy forges technology partnership with Eguana Technologies
The route to cleaner e-cars - coupling perovskite solar cells
Real-time data hub for smart electromobility
August 27, 2015
Intelligent mobility is requires that cars can share data – for example with other vehicles, with services providers, repair ...
Apple iCar: Do iCare?
Qorvo takes strategic stake in MEMS vendor Cavendish
Here strives to establish uniform auto sensor data format
- Software-Defined Radio Handbook
- Why Making the Move from a Variable Transformer to a VariPLUS is the Right Decision
- Automating Leakage and Functional Testing
- Automotive Circuit Protection using Littelfuse Automotive TVS Diodes
InterviewCEO interview: Ambiq sees broader options for low voltage
Mike Noonen, recently appointed interim CEO at microcontroller startup Ambiq Micro, discusses the focus and opportunities for this pioneering company designing circuits that can operate below the threshold ...
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, Novelda is giving away two full XeThru Inspiration kits worth 1499 US Dollars each, for EETimes Europe's readers to experiment first hand with its XeThru technology.Based on the use of radio waves, rather than infrared, ultrasound or light, the company's X2M1000 Inspiration modules can detect presence just from the chest movement while breathing, and measure both the rate and... MORE INFO AND LAST MONTH' WINNERS...
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.