A new quadratic buck converter

Analysis and control of a single switch wider step‐down gain DC–DC converter for low‐voltage applications

“…The CLSDC's performance parameters are evaluated against TBC 3 , recent similar kinds of configurations 6,7,15,16,[19][20][21][22] and duly summarized in Table 4 for reference purpose. On effective switch utilization front, the presented CLSDC outsmarts TBC 3 and quadratic gain topologies in Palomo et al, 6 Lica et al, 7 and Oliveira et al 16 and maintains close competency with Malanche et al, 15 Chavoshipour Heris et al, 19 Hwu et al, 20 Chuang et al, 21 and Ching-Tsai et al 22 Having inductor-fed smoother source current, CLSDC also benefits from lower ripple than the discussed contemporary topologies 7,15,[19][20][21][22] where extortionate pulsed supply current is unavoidable. As far as L-C and switching elements are concerned, the presented CLSDC exhibits their lesser count than Chavoshipour Heris et al, 19 Hwu et al, 20 Chuang et al, 21 and Ching-Tsai et al, 22 whereas it closely follows Malanche et al 15 and Oliveira et al 16 The comparison of stress acting on components, that is, MOSFET switch, power diodes, and inductors in terms of voltage/current quantities, has been shown through Figure 6.…”

“…Possessing extortionate pulsed supply currents, the inclusion of an additional filter circuit meant their order and dynamic complexities get enhanced. Likewise, cascaded or quadratic buck structures of Palomo et al 6 and Lica et al, 7 which furnish low output voltages at moderate duty ratio, grabbed immense attention. But they escalated component stress and source current ripple, thus provoking efficiency along with electromagnetic interference (EMI) concerns.…”

“…Interleaved structures 20–25 eased output stage current ripple constraint, yet they require proper addressal of current balancing issues. In short, the discussed literature 4–25 clearly reveal that source current ripple smoothening and extreme voltage step‐down cannot be achieved unlesssetrestrictions on either circuit elements, wider operating duty ratios, or minimized electric stress on components are relaxed. Hence, aptly striking an optimum balance among these performance factors, a new capacitor–inductor (C–L) charge pump network‐based step‐down converter (CLSDC) is presented through this paper.…”

“…trends are henceforth oriented toward developing new step-down configurations based on switched capacitive/inductive cell TBC adaptions. 4 Few such third and fourth-order topologies [4][5][6][7] were reported to have a wider gain competence than TBC. Possessing extortionate pulsed supply currents, the inclusion of an additional filter circuit meant their order and dynamic complexities get enhanced.…”

A New Hybrid Inductor-Based Boost DC-DC Converter Suitable for Applications in Photovoltaic Systems

“…For increasing the voltage gain the authors in [26][27][28][29], are using a transformer. Other solutions that are found in the literature consist of different families of multi-input converters [30], multiphase converters [31][32][33][34][35], quadratic converters [36][37][38][39], stacked step-up converters [40,41] or switched-capacitor/switched-inductor structures for getting transformerless hybrid DC-DC pulse width modulated (PWM) converters [42,43]. Also, in [44][45][46] a high step-up DC-DC converter that uses at least one pair of coupled inductors is presented.…”