Internet connected devices require power to send data wirelessly. With the number of these devices set to double to more than 30 million in 2020, concerns have been growing over the amount of energy they’ll require to operate.
The problem is that if a sensor is waiting to be polled so it can answer with a snippet of data, the radio has to be in a state where it can be woken up. However, when the device is off, you want the least possible leakage currents.
By reducing a device’s transistor power leakage, even in standby the system will be able to provide enough power for communication at much lower power levels.
“A key challenge is designing these circuits with extremely low standby power, because most of these devices are just sitting idling, waiting for some event to trigger a communication,” Chandrakasan told MIT News.
“When it’s on, you want to be as efficient as possible, and when it’s off, you want to really cut off the off-state power, the leakage power.”
By applying a negative charge to the transistor gate while the transmitter was idle, Chandraskasan’s team was able to make the transistor a better insulator that saved over 10,000 picowatts in leakage.
MIT claims that the device is suitable for Bluetooth and 802.15.4 transmissions.
What do you know about the Internet of Things? Take our quiz!
Targetting AWS, Microsoft? British competition regulator soon to announce “behavioural” remedies for cloud sector
Move to Elon Musk rival. Former senior executive at X joins Sam Altman's venture formerly…
Bitcoin price rises towards $100,000, amid investor optimism of friendlier US regulatory landscape under Donald…
Judge Kaplan praises former FTX CTO Gary Wang for his co-operation against Sam Bankman-Fried during…
Explore the future of work with the Silicon In Focus Podcast. Discover how AI is…
Executive hits out at the DoJ's “staggering proposal” to force Google to sell off its…