This work presents an ultra-low-power CMOS supercapacitor storage unit suitable for a plethora of low-power autonomous applications. The proposed exploits the unregulated voltage output harvesting circuits (i.e., DC-DC converters) and redirects power to elements working loads. Being able adapt input energy conditions connected loads’ supply demands offers extended survival system with self-star...

In 1996, fipronil and malathion residues were evaluated after four ultra-low-volume (ULV) spray applications in northeastern Tarnaulipas, Mexico. Sprays were applied at 0.88 L/ha. Fipronil was applied at 28 and 56 g A.I./ha and malathion at 840 g A.I./ha. Four applications were made beginning 23 May at four, five and six day intervals. Leaf surface residues of malathion accumulated with each ap...

Simple ultra low-voltage floating-gate current scaling and level shifting circuits are presented. The current scaling and level shifting are accomplished using only minimum transistors and floating capacitors. The circuits are extremely small compared to a standard approach to current scaling. Measured results are provided.

The scaling of CMOS technology has greatly influenced the design of analog and radio-frequency circuits. In particular, as technology advances, due to the use of lower supply voltage the available voltage headroom is decreased. In this paper, after a brief overview of conventional low-power CMOS active mixer structures, we introduce an active mixer structure with sub-mW-level power consumption ...

AEther Wire's long term goal is the development of coin-sized devices that are capable of localization to centimeter accuracy over kilometer distances. These " Localizers " will be able to operate within a network of millions of other units in a local area, and users will be able to enter and leave the network seamlessly and transparently. Ultimately, these localizers will be able to operate fo...