Abhimanue Airi

Title: Abhimanue Airi and His Charge-Pump Innovation.

Introduction

Abhimanue Airi is an inventor based in Bengaluru, India, and works at GlobalFoundries U.S. Inc. His patent work includes a circuit design intended to improve the area efficiency and performance of a multi-stage negative charge pump.

Latest Patents

Airi is associated with 1 patent: “Non-integer Multi-stage Negative Charge Pump with Low Area and High Efficiency.” The invention describes a multi-stage circuit that generates a negative output voltage from a charge-pump reference voltage. Each stage except the last adds a negative amount equal to the reference voltage, while the final stage adds a negative fraction of it.

An oscillator clock drives the earlier stages. The last stage uses a modulated oscillator clock that alternates between oscillating and paused intervals to produce the fractional voltage. A comparator and voltage divider help determine the durations of those intervals, using the relationship between a reference voltage, the charge-pump output, and an LDO voltage. This approach is designed to provide the desired negative voltage while limiting circuit area and supporting efficiency.

Career Highlights

Airi’s listed patent reflects work on power-management circuitry and charge-pump design. The invention’s non-integer voltage-generation method distinguishes the final stage from the preceding stages.

Collaborations

Airi’s listed coworkers include Siva Kumar Chinthu and Suresh Pasupula. The patent information connects his work with GlobalFoundries U.S. Inc.

Conclusion

Abhimanue Airi’s patent describes a multi-stage negative charge pump that uses clock modulation in its final stage to generate a fractional voltage, highlighting his contribution to compact and efficient circuit design.