A 4-Phase 30–70 MHz Switching Frequency Buck Converter Using a Time-Based Compensator

Fixed‐frequency hysteretic buck converter with novel adaptive window control and transient response improvement

“…7 summarises the power conversion efficiency at different loadings, a peak efficiency of ∼91% is achieved at 200 mA with an input supply voltage of 3 V. Fig. 8 shows the chip layout of the buck converter, and Table 1 provides the performance summary comparing with prior works [8, 9].…”

A Time-Based Control Scheme for Power Factor Correction Boost Converter

“…The output of the PD is a PWM signal equivalent to the control signal in time domain. While prior art reported time-based controllers for DC-DC buck converters with a single control loop to regulate the output voltage [8]- [10], this work investigates the employment of time-based controllers for an AC-DC boost PFC converter, where an additional control loop is added to control the input current, and the two time-based loops are combined to achieve a sinusoidal input current in phase with the input voltage, as well as a dc output voltage. Fig.…”

“…It is finding new applications to improve performance and reduce die area and power consumption, as it copes better with the technology scaling that comes with increased speeds and reduced power supplies. One application reported in prior art is time-based controllers for DC-DC buck converters [8]- [10], where a time-based control loop compares the output voltage with a reference, and provides regulation across line and load disturbances.…”

A Scaling Compatible, Synthesis Friendly VCO-based Delta-sigma ADC Design and Synthesis Methodology

“…the concept of TD-AMS. TD-AMS framework has been adopted among a wide range of AMS circuits [2][3][4][5][6][7]. They care less about VD accuracy, obviating the need for opamps.…”