Search Results - "Kapat, Santanu"

Sampling-Induced Border Collision Bifurcation in a Voltage-Mode DPWM Synchronous Buck Converter by Kapat, Santanu

“…The output voltage of a voltage-mode digitally pulse-width-modulated (DPWM) dc-dc converter is sampled once per switching cycle, and past studies show the…”
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A Tutorial and Review Discussion of Modulation, Control and Tuning of High-Performance DC-DC Converters Based on Small-Signal and Large-Signal Approaches by Kapat, Santanu, Krein, Philip T.

“…Many commercial controller implementations for dc-dc converters are based on pulse-width modulation (PWM) and small-signal analysis. Increasing switching…”
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Selectively Sampled Subharmonic-Free Digital Current Mode Control Using Direct Duty Control by Kapat, Santanu

“…Benefits of digital current mode control are often limited by the choice of a current-loop sampling rate. A higher rate requires a fast analog-to-digital…”
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A Unified Framework for Analysis and Design of a Digitally Current-Mode Controlled Buck Converter by Singha, Amit Kumar, Kapat, Santanu

“…Mixed-signal current-mode control (MCMC) implementation has been gaining popularity, because of the tuning flexibility using the digital voltage controller G c…”
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Discrete-Time Framework for Analysis and Design of Digitally Current-Mode-Controlled Intermediate Bus Architectures for Fast Transient and Stability by Roy, Rabisankar, Kapat, Santanu

“…In an intermediate bus architecture (IBA), a buck converter, while driving a constant power load (CPL), exhibits unstable poles in its control-to-output…”
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Enhanced Stability Caused by a One-Cycle Delay in a Digital Current-Mode Controlled Buck Converter by Singha, Amit Kumar, Banerjee, Soumitro, Kapat, Santanu

“…In the recent years, digital current mode control has gained popularity due to its technical benefits. However, designers face difficulties in controller…”
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Discontinuous Map Analysis of a DC-DC Converter Governed by Pulse Skipping Modulation by Kapat, Santanu, Banerjee, Soumitro, Patra, Amit

“…This paper reports the bifurcation phenomena in a dc-dc converter governed by a pulse skipping modulation (PSM) scheme, which is normally used to improve…”
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Nonlinear Analysis of Discretization Effects in a Digital Current Mode Controlled Boost Converter by Singha, Amit Kumar, Kapat, Santanu, Banerjee, Soumitro, Pal, Jayanta

“…Digital current mode control finds wide spread application in point of load power converters in DC nano-grid because of its technical benefits. However, finite…”
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Achieving Monotonic Variation of Spectral Composition in DC-DC Converters Using Pulse Skipping Modulation by Kapat, S., Patra, A., Banerjee, S.

“…This paper presents a new type of pulse skipping modulation (PSM) in a dc-dc converter, which is controlled by a voltage mode scheme. The duty ratio of the…”
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Parameter-Insensitive Mixed-Signal Hysteresis-Band Current Control for Point-of-Load Converters With Fixed Frequency and Robust Stability by Kapat, Santanu

“…The inductor current ripple under hysteresis current control is sensitive to system as well as controller parameters, which often deviates from the desired…”
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PID Controller Tuning of Voltage Mode Controlled Buck Converter for Fast Recovery up to Slew Limit by Kapat, Santanu

“…Existing design methods under voltage mode control (VMC) are carried out using perturbed linear small-signal models (SSMs), and the design works fine in a…”
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An Analytical Approach of Discrete-Time Modeling of Fixed and Variable Frequency Digital Modulation by Kapat, Santanu

“…This paper proposes an analytical approach of discrete-time (DT) large-signal and small-signal modeling of digitally controlled DC-DC converters operated under…”
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Chattering-Free Event-Trigger Fast Recovery Stable Digital Sliding Mode Control in DC-DC Converters by Kapat, Santanu

“…Sliding mode control (SMC) offers fast transient per-formance and robust disturbance rejection in DC-DC converters by suitably designing a switching surface…”
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Real-Time Reconfiguration in Digital Current Mode Control for Fast Transient with Robust Stability by Kapat, Santanu

“…The feasibility of real-time tuning of the digital voltage controller in mixed-signal current mode control (CMC) can achieve fast transient recovery. However,…”
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Fixed and Variable Frequency Digital Current Mode Control: Structural Stability and Performance Limits by Kapat, Santanu

“…Fixed-frequency digital current mode control (CMC) offers high performance and energy efficiency by using real-time controller tuning and energy optimization…”
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Reconfigurable Periodic Bifrequency DPWM With Custom Harmonic Reduction in DC-DC Converters by Kapat, Santanu

“…Majority of spectral spreading techniques employ chaos-based pulsewidth-modulation (PWM) schemes in a switching dc-dc converter, in which neither dynamic…”
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Beyond Stability and Performance Limits in Digital Current Mode Control using Event-Based Sampling by Kapat, Santanu

“…In fixed-frequency fully digital and mixed-signal current mode control (CMC) architectures, a uniform sampling clock remains a default choice in synchronism…”
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Sampling Delay Effect on Stability in a Multi-Phase Buck Converter using Digital Current Mode Control by Kapat, Santanu

“…Fixed-frequency digital current mode control (CMC) architectures find widespread applications in low-voltage-high-current multi-phase DC-DC converters for fast…”
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Digital Average Current Control Technique for High Performance SIMO-Based Dimmable LED Driving by Kapat, Santanu

“…A single-inductor-multi-output (SIMO) DC-DC converter is widely acknowledged as the effective solution as well as commercially used for highly integrated…”
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Event-Triggered Ripple-Emulated Digital Hysteresis Current Control Architectures in DC-DC Converters by Kapat, Santanu

“…This paper proposes fully digital hysteresis current control (HCC) architectures for hardware and software con-trolled high frequency DC-DC converters using…”
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