Proceedings ArticleDOI
A 10–25MHz, 600mA buck converter using time-based PID compensator with 2µA/MHz quiescent current, 94% peak efficiency, and 1MHz BW
Qadeer A. Khan,Seong Joong Kim,Mrunmay Talegaonkar,Amr Elshazly,Arun Rao,Nathanael Griesert,Greg Winter,William J. McIntyre,Pavan Kumar Hanumolu +8 more
- pp 1-2
TLDR
A time-based PID compensator that combines the advantages of both analog and digital controllers is used to implement a high frequency low quiescent current buck converter that achieves better than 94% peak efficiency while consuming a quiescence current of only 2μA/MHz.Abstract:
A time-based PID compensator that combines the advantages of both analog and digital controllers is used to implement a high frequency low quiescent current buck converter. Fabricated in 180nm CMOS process, the proposed buck converter operates over a wide range of switching frequencies (10-25MHz) and achieves better than 94% peak efficiency while consuming a quiescent current of only 2μA/MHz.read more
Citations
More filters
Journal ArticleDOI
High Frequency Buck Converter Design Using Time-Based Control Techniques
Seong Joong Kim,Qadeer A. Khan,Mrunmay Talegaonkar,Amr Elshazly,Arun Rao,Nathanael Griesert,Greg Winter,William J. McIntyre,Pavan Kumar Hanumolu +8 more
TL;DR: Time-based control techniques for the design of high switching frequency buck converters are presented and eliminates the need for wide bandwidth error amplifier, pulse-width modulator (PWM) in analog controllers or high resolution analog-to-digital converter (ADC) and digital PWM in digital controllers.
4-Phase Time-Based Buck Converter Consuming 3µA/MHz Quiescent Current in 65nm CMOS
Seong Joong Kim,Romesh Kumar Nandwana,Qadeer A. Khan,Robert C. N. Pilawa-Podgurski,Pavan Kumar Hanumolu +4 more
TL;DR: This work focuses on high-Fsw converters where the need for complex controllers that ensure accurate regulation and uniform current sharing between phases along with generation of multiple matched pulse-width modulated (PWM) signals complicate the design of multi-phase converters.
Proceedings ArticleDOI
Area and Current Efficient Capacitor-Less Low Drop-Out Regulator Using Time-Based Error Amplifier
TL;DR: An output capacitor-less low drop-out (LDO) regulator using time-based error amplifier using voltage-controlled oscillator (VCO) as an integrator to replace the conventional voltage- based error amplifier is presented in this paper.
Proceedings ArticleDOI
A High Gain, Low Offset Time-Based Operational Amplifier for Capacitive Loads with 36MHz UGB and 70µA Quiescent Current
Abirmoya Santra,Qadeer A. Khan +1 more
TL;DR: In this article, a time-based operational amplifier (OP-AMP) with high gain and wide bandwidth is presented, which utilizes voltage-controlled oscillator (VCO) as an ideal integrator to replace the conventional voltage-based error amplifier which provides infinite DC gain.
Proceedings ArticleDOI
Time-Based PWM Controller for Fully Integrated High Speed Switching DC-DC Converters — An Alternative to Conventional Analog and Digital Controllers
TL;DR: The concept of time based proportional-integral-derivative (PID) controller with complete architecture of a time-based buck converter is presented and was successfully demonstrated on silicon with implementation of 10-25MHz single phase and 30-70MHz 4-phase buck converters on 180nm and 65nm CMOS processes, respectively.
Related Papers (5)
A DC–DC Converter for a Fully Integrated PID Compensator With a Single Capacitor
Hyun-Hee Park,Gyu-Hyeong Cho +1 more