Derek Jan Kroes

Title: **Derek Jan Kroes: A Pioneer in Power Supply and Magnetic Technology**

Introduction

Derek Jan Kroes, based in Fremont, CA, is a distinguished inventor with an impressive portfolio of four patents. His work predominantly focuses on innovations within the fields of power supply technology and magnetic sensing devices, showcasing his expertise and creativity in engineering.

Latest Patents

Among his latest patents, Derek developed a **Method and apparatus to limit maximum switch current in a switch of a switching power supply**. This invention details techniques to control the current in a switch of a switching power supply, which includes a switching regulator circuit with a controller that manages the operation of the switch based on input from a current sensor. The sensor utilizes comparators to ensure that the current remains within defined limits, thereby enhancing the safety and efficiency of the power supply system.

Another noteworthy invention is his patent for a **Magnetic tape head with flux sensing element**. This technology centers on a thin film read-write magnetic head that is particularly useful in tape apparatus. The magnetic circuit features two thin film magnetic layers forming a yoke divided into three sections, enabling sophisticated flux sensing during both recording and playback modes. This innovative design allows for high precision in data recording and retrieval on magnetic tape.

Career Highlights

Throughout his career, Derek has made significant contributions while working for notable companies such as Read Rite Corporation and Power Integrations, Inc. These experiences not only honed his skills as an engineer but also enriched his understanding of the practical applications of his inventions in the industry.

Collaborations

Derek has collaborated with talented professionals in his field, including Marcos Moises Lederman and Daniel A. Nepela. These partnerships have undoubtedly aided in the development of his projects and innovations, allowing him to bring his creative ideas to fruition.

Conclusion

Derek Jan Kroes exemplifies the innovative spirit that drives technological advancement. His patents in power supply management and magnetic technology demonstrate a clear commitment to enhancing efficiency and performance in electronic systems. As he continues his work, the impact of his inventions will undoubtedly resonate within the engineering community and beyond.