Company Filing History:
Years Active: 2002-2005
Title: The Innovations of Donald Marabell
Introduction
Donald Marabell is a notable inventor based in Dallas, TX, who has made significant contributions to the field of electrical engineering. With a total of 3 patents to his name, Marabell has focused on developing advanced methods and apparatuses that enhance power efficiency and signal generation.
Latest Patents
One of Marabell's latest patents is the "PWM control signal generation method and apparatus." This invention discloses an apparatus for generating two constant width and symmetrical drive signals from two separate, but complementary, pulse width modulated control signals. The apparatus also generates two pulse width modulated drive signals corresponding to the control signals. The constant width drive signals are produced using a toggle or latch set/reset circuit actuated by specific characteristics of each control signal.
Another significant patent is the "Interleaved converter power factor correction method and apparatus." This invention describes an apparatus that equally distributes current from a rectifier circuit to multiple power factor correction circuit units. It achieves this by utilizing equal current magnitudes and reducing component count while benefiting from the lower harmonic distortion advantages of average current sensing. The output of a single average current sensing correction circuit in a master controller is logically compared with the output of a peak current sensing circuit in each of the interleaved master and slave controller units. This comparison produces a difference signal used to operate the switch in each controller unit, thereby reducing EMI, harmonic distortion, and increasing power factor toward an in-phase condition.
Career Highlights
Donald Marabell is currently employed at Valere Power Inc., where he continues to innovate and develop new technologies. His work has significantly impacted the efficiency and effectiveness of power systems.
Collaborations
Marabell has collaborated with several talented individuals in his field, including Barry Olen Blair and Gregory H. Fasullo. These collaborations have contributed to the advancement of his projects and the successful development of his patents.
Conclusion
Donald Marabell's contributions to electrical engineering through his innovative patents demonstrate his commitment to enhancing power efficiency and signal generation. His work at Valere Power Inc. and collaborations with other professionals further highlight his impact in the industry.