E-2's main propulsion system consists of two DC motors directly driving contra-rotating propellers. An underwater vehicle with a single propeller is subject to undesirable torque forces, especially if ...

It’s no secret that I’m a sucker for photography — I’ve been known to take a photo or two in my time — and I have a hell of a weak spot for electronics, to boot. In the upcoming Open Circuits from No ...

JA Solar announced it achieved a record-breaking open-circuit voltage for a solar cell based on tunnel oxide passivated contact (TOPCon) technology. Germany's Institute for Solar Energy Research in ...

Researchers at Switzerland’s Ecole Polytechnique Federale de Lausanne (EPFL) used a special dye to fabricate dye-sensitized solar cells (DSSC) with high open-circuit voltage and power conversion ...

Lighting a string of LEDs at a constant brightness requires driving it with a regulated current. A boost converter is commonly used to step up the voltage to a level high enough to bias the LEDs on ...