Krishnamoorthy Ravishanker

Title: Innovations by Krishnamoorthy Ravishanker

Introduction

Krishnamoorthy Ravishanker is a notable inventor based in Singapore, SG. He has made significant contributions to the field of integrated circuit technology, holding 2 patents that showcase his innovative spirit and technical expertise.

Latest Patents

One of his latest inventions is a thermal sensor circuit designed for sensing the temperature of an integrated circuit chip. This thermal sensor circuit includes an output comparator that compares a reference voltage with a sensed voltage. The sensed voltage is measured over a sensing resistor relative to the ground potential of the circuit. The design features a first circuit connected to a reference voltage line to measure the reference voltage, along with a first current mirror providing a first current input to both the first circuit and a compensation circuit. Additionally, a second current mirror supplies a second current input to the compensation circuit and the sensing resistor. The compensation circuit enhances current gain to compensate for variations in the sensed voltage due to manufacturing process variations.

Another significant patent is the multi-mode motor controller chip set. This architecture includes a motor, an integrated circuit controller, and an integrated circuit driver circuit. The integrated circuit controller comprises a pulse generator, a digital-to-analog converter (DAC), an analog-to-digital converter (ADC), and a digital compensator circuit. The driver circuit communicates with the controller and includes an error amplifier and output amplifiers for driving the motor. This motor controller architecture can operate in various modes, including linear, pulsed, or switchable linear/pulsed modes, and can be implemented with external or internal compensation circuitry.

Career Highlights

Krishnamoorthy has worked with prominent companies in the semiconductor industry, including STMicroelectronics Asia Pacific Pte Limited and STMicroelectronics GmbH. His experience in these organizations has contributed to his development as an inventor and innovator in the field.

Collaborations

Throughout his career, Krishnamoorthy has collaborated with notable professionals, including Giorgio Pedrazzini and Hin Sing Fong. These collaborations have likely enriched his work and contributed to his innovative projects.

Conclusion

Krishnamoorthy Ravishanker is a distinguished inventor whose work in integrated circuit technology has led to valuable patents. His contributions continue to influence the field and inspire future innovations.