Location History:
- South Hamilton, MA (US) (1990)
- San Jose, CA (US) (2002 - 2003)
- Massapequa, NY (US) (2000 - 2005)
- Wenham, MA (US) (2005 - 2012)
- Milpitas, CA (US) (2013 - 2023)
Company Filing History:
2 out of 388 
2 out of 175 
1 out of 20 Years Active: 1990-2023
Title: Innovations of Charles Coles in Power Conversion Technologies
Introduction
Charles Coles, an inventive mind based in Milpitas, CA, has made notable contributions to the field of power conversion technologies. With a total of three patents, his work demonstrates a commitment to advancing electrical engineering principles and enhancing the efficiency of power systems.
Latest Patents
Charles Coles is the inventor behind several innovative patents, the latest of which include:
1. **Self-Oscillating High Frequency Converter with Power Factor Correction** - This patent outlines a self-oscillating converter that optimizes current flow through a primary winding. It includes a power transistor and circuits to control its operation, ensuring efficient oscillation and power factor correction. This innovation allows for modulation of the power transistor to effectively regulate output current in load devices.
2. **Single Ended Primary Inductor Converter with Over-Current and/or Over-Voltage Protection and Method for Controlling the Same** - This design showcases a SEPIC converter enhanced with over-voltage protection measures. It features a high-side inductor, a power MOSFET, and a PWM control circuit. The integrated comparator ensures the device disconnects from the input supply if voltage exceeds a predetermined threshold, safeguarding against potential damage.
Career Highlights
Charles has worked with esteemed organizations such as Advanced Analogic Technologies Incorporated and Nexgen Power Systems, Inc. His time in these companies allowed him to collaborate with teams focused on pioneering advancements in power management technologies.
Collaborations
Throughout his career, Charles Coles has partnered with professionals like Richard Kent Williams and Kevin Peter D'Angelo. These collaborations have contributed to fostering innovation and enhancing the technological frameworks within which they operate.
Conclusion
Charles Coles stands out as a prominent inventor in the domain of electrical engineering. His patents reflect a strong dedication to innovation in power conversion, offering solutions that enhance performance and reliability in various applications. As his career progresses, he is likely to continue making impactful contributions to the field.