Sriram Muralidharan

Title: Innovations of Sriram Muralidharan

Introduction

Sriram Muralidharan is a notable inventor based in Hillsboro, OR (US). He has made significant contributions to the field of electronics, particularly in the development of variable gain amplifiers and switched amplifiers. With a total of 2 patents to his name, Muralidharan continues to push the boundaries of technology.

Latest Patents

Muralidharan's latest patents include innovations in variable gain amplifiers with output phase invariance. These variable gain amplifiers (VGA) are designed to operate in selected gain settings that provide varying levels of amplification to radio frequency (RF) input signals. The VGA features a gain transistor that maintains a substantially constant bias current across different gain settings, ensuring that the output phase, input impedance matching, and input return loss remain stable. The gain setting is controlled by adjusting the relative biasing of cascode transistors connected to the gain transistor through degeneration resistors, which help to mitigate differences in output phase across gain settings.

Another significant patent involves switched amplifiers. In this design, a switched amplifier comprises a first and a second amplifier, along with an input matching network that is common to both amplifiers. The design includes at least one switch that connects the input of the switched amplifier to either the first or second amplifier via the input matching network. Additionally, the switched amplifier may feature a bias generation circuit that selectively provides different bias currents to the amplifiers, optimizing performance based on the application.

Career Highlights

Sriram Muralidharan is currently employed at Analog Devices, Inc., where he applies his expertise in electronics to develop cutting-edge technologies. His work has been instrumental in advancing the capabilities of amplifiers used in various applications.

Collaborations

Muralidharan collaborates with talented professionals in his field, including his coworker Christopher Eugene Hay. Together, they contribute to innovative projects that enhance the performance of electronic devices.

Conclusion

Sriram Muralidharan is a distinguished inventor whose work in variable gain amplifiers and switched amplifiers has made a significant impact in the electronics industry. His patents reflect a commitment to innovation and excellence in technology.