Nandakishore Raimar

Title: Nandakishore Raimar: Innovator in Oscillator Technology

Introduction

Nandakishore Raimar is a prominent inventor based in Bengaluru, India. He has made significant contributions to the field of oscillator technology, holding a total of 8 patents. His innovative designs have advanced the capabilities of electronic circuits, particularly in generating precise timing signals.

Latest Patents

Among his latest patents is a "Precision internal low-frequency oscillator to generate real-time clock." This oscillation circuit features resistors with tap points for high and low reference voltages. It includes an RC network coupled in parallel with the resistors, which consists of a first capacitor to vary a first voltage input and a second capacitor to generate a second voltage input. A first comparator alternately compares the voltage inputs with the low reference voltage to generate oscillation outputs. Additionally, a PTAT current DAC supplies an injection current to a resistor of the series of resistors, variably modulating the reference voltages. A second comparator alternately compares the voltage inputs with the high reference voltage and controls the generation of an adaptive bias current to the first comparator near a switching threshold voltage range. A chop switch matrix alternately flips voltage reference inputs to the input terminals of the first comparator, while a multiplexer alternately inverts the polarity of the oscillation outputs in concert with the voltage reference inputs.

Another notable patent is the "Closed loop oscillator," which encompasses one or more devices, systems, and methods. In this example, the oscillator comprises a voltage-controlled oscillator configured to generate an output clock based on a drive signal. It also includes a frequency-to-voltage converter with a time constant, generating a feedback voltage with a decay cycle based on the time constant and the frequency of the output clock. An integrator generates the drive signal based on the integration of the feedback voltage and a reference voltage.

Career Highlights

Nandakishore has worked with leading companies in the technology sector, including Cypress Semiconductor Corporation and Texas Instruments Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking projects in electronic design.

Collaborations

Throughout his career, Nandakishore has collaborated with talented individuals such as Pradeep V S R Pydah and Biranchinath Sahu. These collaborations have fostered innovation and creativity in his work.

Conclusion