Monolithically Integrated Boost Converter Based on 0.5-<tex>$mu$</tex>m CMOS Process

Fast Transient DC-DC Converter with On-Chip Compensated Error Amplifier

“…The area of quadrangle (ACDE) in Figure 4 represents the charge supplied by CL, and the value of Vdrop can be calculated as: (4) RESR is the electrical series resistance of output capacitor CL. After time t2, the fast transient controller is started to speed up the increasing rate of Iconverter From time t2 to t3, the non-inverting input terminator of comparator in Figure 1 is expected to rise to a stable voltage, which can be decided by the current-sensing circuit and V-I converter [9].…”

“…Different to the voltage-mode Miller capacitor [4], our proposed error amplifier uses current-mode Miller capacitor for compensating the error amplifier and decreasing the transient response time. An equivalent current is generated and connected parallel to the two terminals of the small capacitor for generating the equivalent large capacitor.…”

Optimal Inductor Current in Boost DC/DC Converters Operating in Burst Mode Under Light-Load Conditions

“…In PFM, the switching frequency is scaled down with the load current, thus reducing the switching losses at light loads. Two PFM-based approaches operating in discontinuous conduction mode (DCM) have been proposed [9]: (i) constant on-time [10], which can also be dynamically adapted [11], and (ii) constant peak inductor current [12]. In both cases, there is an optimal value of on-time and peak current that leads to maximum efficiency [9].…”

Design and implementation of PFM mode high efficiency boost regulator

“…PWM mode Boost Regulators operate in fixed frequency operation and are capable to supply higher load with higher efficiency. But at lower load condition, due to the constant switching loss, the efficiency degrades significantly [1][2][3][4][5][6][7]. PFM mode Boost Regulators, on the other hand operate in discontinuous conduction mode (DCM) and hence skip pulses at light load condition [1,8].…”