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Power/Alternative Energy  

Startup develops energy management chip

Posted: 03 Aug 2015     Print Version  Bookmark and Share

Keywords:E-peas Semiconductors  thermoelectric generator  Internet of Things  PV  energy management 

E-peas Semiconductors has announced its first chip in energy management IC for photovoltaic and thermoelectric energy harvesting. The start-up was founded in 2014 by Geoffroy Gosset, CEO, and Julien De Vos, CTO, with a vision to address Internet of Things (IoT) applications on two fronts; by increasing harvested energy and by reducing the energy consumption of circuit blocks.

The AEM1x940 is an energy management IC that extracts DC power from photovoltaic cells or thermoelectric generators to supply electronic systems in order to extend their battery life and ultimately get rid of the primary storage element.

It uses a low power boost converter that can operate with input voltages in the range of 100mV up to 2.5V. With a special "cold-start" circuit it can start operating with empty storage elements at an input voltage as low as 380mV and an input power as low as 3µW, according to the company.

AEM1x940

The device includes two LDO regulators for 1.8V output at up to 10mA load and a variable LDO at 2.5V to 4V with up to 30mA load current. Overcharging and over-discharging protection are provided and the design is described as being RF transmission friendly.

E-peas also plans to sell a low power 32bit MCU. The MCU, of undisclosed architecture, consumes about 20 per cent of the power of other 32bit MCUs, E-peas claimed. The architecture selected is "well-known" and the MCU will be available "soon."

- Peter Clarke
  EE Times Europe





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