Other

Altergy Systems

James M Oros

Leonard Elliott Klebanoff

Terry J Johnson

Thomas J Skradski

George Michael Roe

Robert A Drake

Jerrold E Franklin

Gerald W Rea

David Grupp

Christopher James Radley

Paul G Schuttinger

Steven John Wingert

Stephen Carl Prey

Thomas A Damberger

A mobile lighting apparatus includes a portable frame such as a moveable trailer or skid having a light tower thereon. The light tower is moveable from a stowed position to a deployed position. A hydrogen-powered fuel cell is located on the portable frame to provide electrical power to an array of the energy efficient lights located on the light tower.

Mobile lighting apparatus

A power management and protection system is provided for a hybrid fuel cell system. The hybridization includes a fuel cell stack and an energy storage device (ESD) having either batteries, ultracapacitors, or both, in parallel with the fuel cell for delivering power to an electrical load. Voltage and current protection is provided to the stack, ESD, and load by use of a two stage control system. The first stage limits the current drawn from the stack and the charging rate of the ESD and provides for the voltage output to be within an adjustable predetermined range to prevent an over-voltage condition on the ESD and the load and an under-voltage condition in the stack. The second stage limits the current delivered to the load to an adjustable predetermined level, prevents an under-voltage condition on the load, and prevents rapid discharge of the ESD in the case of a short circuit.

Protection circuits for hybrid power systems

Growing community of inventors

Carmichael, CA, United States of America

James M Oros