Ruturaj Garnayak

About Ruturaj Garnayak

Ruturaj Garnayak, With an exceptional h-index of 2 and a recent h-index of 2 (since 2020), a distinguished researcher at Indian Institute of Technology Kharagpur, specializes in the field of DC-DC Power Converters, Digital Control.

His recent articles reflect a diverse array of research interests and contributions to the field:

Constant On/Off-Time Digital Current Control and Design Methods in Three-Level Flying-Capacitor Boost Converters for Fast Transient and Voltage Balancing

Sampling Delay Effect on Stability in Digitally Current Mode Controlled Flyback Converters

A hybrid design framework for fast transient and voltage balancing in a three-level flying capacitor boost converter with digital current mode control

Ruturaj Garnayak Information

University

Indian Institute of Technology Kharagpur

Position

Department of Electrical Engineering

Citations(all)

10

Citations(since 2020)

10

Cited By

2

hIndex(all)

2

hIndex(since 2020)

2

i10Index(all)

0

i10Index(since 2020)

0

Email

University Profile Page

Indian Institute of Technology Kharagpur

Ruturaj Garnayak Skills & Research Interests

DC-DC Power Converters

Digital Control

Top articles of Ruturaj Garnayak

Constant On/Off-Time Digital Current Control and Design Methods in Three-Level Flying-Capacitor Boost Converters for Fast Transient and Voltage Balancing

Authors

Ruturaj Garnayak,Santanu Kapat,Chandan Chakraborty

Journal

IEEE Transactions on Power Electronics

Published Date

2024/3

Constant On/Off-Time Digital Current Control and Design Methods in Three-Level Flying-Capacitor Boost Converters for Fast Transient and Voltage Balancing - NASA/ADS Now on home page ads icon ads Enable full ADS view NASA/ADS Constant On/Off-Time Digital Current Control and Design Methods in Three-Level Flying-Capacitor Boost Converters for Fast Transient and Voltage Balancing Garnayak, Ruturaj ; Kapat, Santanu ; Chakraborty, Chandan Abstract Publication: IEEE Transactions on Power Electronics Pub Date: March 2024 DOI: 10.1109/TPEL.2023.3332100 Bibcode: 2024ITPE...39.2980G full text sources Publisher | © The SAO/NASA Astrophysics Data System adshelp[at]cfa.harvard.edu The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86A NASA logo Smithsonian logo Resources About ADS ADS Help What's New Careers@ADS …

Sampling Delay Effect on Stability in Digitally Current Mode Controlled Flyback Converters

Authors

Ruturaj Garnayak,Santanu Kapat,Chandan Chakraborty

Published Date

2023/12/17

Digital current mode control (DCMC) is often used in flyback DC-DC converters to achieve fast transient and high efficiency without transformer core saturation. Continuous-time (CT) small-signal models are traditionally used to design DCMC; however, such models are insufficient to predict fast-scale instability that may occur due to the sampling delay while using higher controller gains in achieving higher closed-loop bandwidth. In this paper, a unified discrete-time (DT) modeling technique is developed to derive both the DT large-signal and small-signal models by considering practical sampling delays under interval-1 and interval-2 sampling techniques. Large-signal models are validated using SIMPLIS simulation. The effects of sampling delay and the RHP zero are analyzed. Closed-loop stability boundary is accurately predicted. The design steps are presented to achieve fast transient with stable periodic …

A hybrid design framework for fast transient and voltage balancing in a three-level flying capacitor boost converter with digital current mode control

Authors

Ruturaj Garnayak,Prantik Majumder,Santanu Kapat,Chandan Chakraborty

Journal

IEEE Transactions on Power Electronics

Published Date

2023/7/11

Multilevel flying capacitor boost (MLFCB) dc–dc converters offer high power density even at high voltage gain, in which digital control can achieve fast transient, and high efficiency. However, the challenges remain in identifying simple yet useful analysis and design techniques to ensure stability and flying capacitor (FC) voltage balance under uniform sampling. This article proposes a hybrid framework for stability analysis and controller design in an MLFCB converter under digital current mode control (DCMC). Continuous-time (CT) small-signal models (SSMs) of an MLFCB converter are derived, which seem to closely resemble the SSMs of a traditional boost converter. Thereafter, a novel DCMC architecture is proposed, consisting of a type-II (output voltage) digital controller and a proportional FC voltage controller. With a slower FC voltage loop, the type-II controller is designed using the CT SSM, which fails to …

See List of Professors in Ruturaj Garnayak University(Indian Institute of Technology Kharagpur)

Ruturaj Garnayak FAQs

What is Ruturaj Garnayak's h-index at Indian Institute of Technology Kharagpur?

The h-index of Ruturaj Garnayak has been 2 since 2020 and 2 in total.

What are Ruturaj Garnayak's top articles?

The articles with the titles of

Constant On/Off-Time Digital Current Control and Design Methods in Three-Level Flying-Capacitor Boost Converters for Fast Transient and Voltage Balancing

Sampling Delay Effect on Stability in Digitally Current Mode Controlled Flyback Converters

A hybrid design framework for fast transient and voltage balancing in a three-level flying capacitor boost converter with digital current mode control

are the top articles of Ruturaj Garnayak at Indian Institute of Technology Kharagpur.

What are Ruturaj Garnayak's research interests?

The research interests of Ruturaj Garnayak are: DC-DC Power Converters, Digital Control

What is Ruturaj Garnayak's total number of citations?

Ruturaj Garnayak has 10 citations in total.

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