The net result is a total device efficiency of around 40 percent, depending on which materials are used and the temperature of the heat source.

The LM3670 and LM3671 feature automatic PFM-PWM (pulse frequency modulation – pulse width modulation) mode operation which delivers the highest efficiency over the entire load. The synchronous ...

Researchers have revealed a new thermophotovoltaic (TPV) cell that converts heat to electricity with over 40 percent efficiency, performance nearly on par with traditional steam turbine power plants.