Ultra-Low Power, Nw Level Bandgap Voltage Reference (Bgref)
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With advances in the Internet of Things (IoT) applications and the expansion of mobile devices, energy consumption has become a primary focus of attention in integrated circuit design. These mobile battery-operated devices need to operate for extended periods without recharging and therefore requiring ultra-low energy consumption. Many IoT devices require operation in a wide range of frequencies that are dynamically defined by the application. Low voltage operation in the “near-threshold” region has been shown to be the ideal way to dramatically reduce energy dissipation, still achieving reasonable performance. However, an aggressive scaling of supply voltage results in performance degradation and a much higher sensitivity to process variations and temperature fluctuations.
In addition to the reduction in supply voltage, many of the circuits are duty-cycled and turned off during sleep states to save power.
Some circuits are required to be “always-on” and as such their low power capability is crucial. The Bandgap reference is such a circuit.
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We present a novel BGREF circuit which can operate as low as 2nW. This power is several orders of magnitude lower than the prior-art. It is also much smaller than most bandgap references, with an area of roughly 6000 um2. It also has a fast-wakeup mode, where it can operate at high power during wakeup, and then resume lower power operation.
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Our innovative BGREF circuit
- nW level power.
- Can be configured to rise quickly (< 100us) at higher power and then ca be placed in a low power mode (down to 2nW) for power savings.
- Can be commercialized as an IP block.
- Can be commercialized in low-power IOT systems and offers the customer substantial advantages in power and cost.
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Policies and investments in energy efficiency have expanded. The IEA estimates that global investment in energy efficiency was USD 221 billion in 2015, demonstrating an increase of 6% from 2014. Investment in efficiency was two-thirds greater than investment in conventional power generation in 2015. Energy efficiency services are now a sizeable, distinct market sector. In 2015 this market had a total turnover of USD 24 billion.
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- Energy efficiency services (ESCOs) market
- Semiconductor market
- Environmental services market
- Renewable energy industry
- Pollution control market
- Electricity generation market
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- Prof. Shor is presently an Associate Professor of Electrical Engineering at Bar Ilan University and is a Senior Member of the IEEE.
- Prof. Shor has published more than 60 papers in refereed Journals and Conference Proceedings in the areas of Analog Circuit Design and Device Physics.
- Prof. Joseph Shor holds > 40 issued patents and several pending patents.
- Prof. Shor was at Intel Corporation, as a Principal Engineer, and head of the Analog Team at Intel Yakum.
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We plan to investigate applications for this ultra-low-power reference generator. This includes DC2DC generators as well as sensors.
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We are looking for investors that are willing to support the research and commercialize this novel invention.
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