Jayendar Rajagopalan

Title: Innovations of Jayendar Rajagopalan

Introduction

Jayendar Rajagopalan is a notable inventor based in Newcastle, WA (US). He has made significant contributions to the field of electrical engineering, particularly in the area of switching regulators and differential amplifiers. With a total of 9 patents to his name, Rajagopalan's work showcases his expertise and innovative spirit.

Latest Patents

One of his latest patents is titled "Feed forward control of switching regulator." This invention relates to a switching regulator that incorporates an error amplifier circuit and a feed-forward circuit. The error amplifier circuit generates an error signal by amplifying the difference between a feedback signal and a reference signal. The feed-forward circuit adjusts the output of the error amplifier based on the feed-forward input signal and a scaling factor. The resulting adjusted error signal combines both feedback and feed-forward components. A PWM comparator is utilized to compare the adjusted error signal to a ramp signal, enabling switched-mode regulation based on the PWM comparator output. Additionally, buck-boost mode transition smoothing circuitry may be employed to enhance the transition between buck-mode and boost-mode in a buck-boost switching regulator.

Another significant patent is the "Internally compensated differential amplifier." This invention pertains to a differential amplifier that features internal compensation. It also relates to a regulator controller and a regulator that incorporates such an amplifier. The amplifier consists of a preamplifier circuit and a gain circuit. The frequency response of the amplifier is influenced by the internal compensation within the preamplifier circuit. This internal compensation includes a low-frequency zero provided by the preamplifier circuit.

Career Highlights

Throughout his career, Jayendar Rajagopalan has worked with prominent companies such as National Semiconductor Corporation and SGS-Thomson Microelectronics S.r.l. His experience in these organizations has contributed to his development as an inventor and engineer.

Collaborations

Rajagopalan has collaborated with notable colleagues, including Shu-Ing Ju and Jeffry Mark Huard. These partnerships have likely fostered innovation and creativity in his projects.

Conclusion

Jayendar Rajagopalan's contributions to the field of electrical engineering through his patents and collaborations highlight his innovative capabilities. His work continues to influence advancements in switching regulators and differential amplifiers.