Various topological modifications of diode–capacitor voltage multipliers are considered. All the topologies are based on two known schemes: Cockcroft–Walton and
Simulation and experimental results validate the theoretical analysis and the attractive features of the proposed scheme. Key words: LLC resonant converter, Phase shift modulation,
The second thing you can do is actually a mathematical model. With this math model, you can see that you have the voltage drop across the diode on the left hand of the
Mathematical analysis and experiment results verify that diode-assisted dc-dc converters are very promising for simultaneous high efficiency and high step-up/step-down
Modeling and Analysis of Shutdown Dynamics in Flying Capacitor Multilevel Converters Samantha Coday, Nathan Ellis and Robert C.N. Pilawa-Podgurski Body Diode Conduction:
In this paper, a single-switch hybrid dual diode-capacitor (HDDC) boost converter with less stress over all devices for high voltage gain applications is proposed. and
Fig. 12. Waveforms of new main circuit with adaptive PI parameters under different step change of reference. (a) Step change of reference voltage from 120 to 160 V. (b) Step change of
High step-up DC-DC converter based on the switched-coupled-inductor boost converter and diode-capacitor multiplier: Steady state and dynamics April 2015 IET Power
In this study a new scheme of a step-up converter with very high voltage gain is proposed. The scheme is based on a natural combination of the switched-coupled-inductor boost converter
Diode-capacitor based DC-DC converters provide a simple and low cost solution for high step-up voltage regulation in solar and fuel cell generation. Transient modeling analysis reveals their
Various topological modifications of diode–capacitor voltage multipliers are considered. All the topologies are based on two known schemes: Cockcroft–Walton and
phenomena of vertical-channel field-effect-diode type capacitor-less one transistor dynamic random access memory cell To cite this article: Takuya Imamoto and Tetsuo Endoh 2014 Jpn.
In Fig. 5, V F increases to the right along the horizontal axis, and I F increases upward along the vertical axis.. Figure 5: Relationship of voltage and current in a forward-biased diode. I F increases very little until the forward voltage across
The small parameter analysis of a five-level single-leg converter yields physically meaningful, simple, and accurate expressions for average voltage balance dynamics giving an
We also rigorously analyze dynamic properties such as the capacitor time constant and relate them to the parameter values of the load, carrier frequency and duty ratio.
A typical DC–DC switched capacitors converter: the load is represented by the resistor R 0 and the capacitor C 0, the first cell is given by the capacitors C 1 and C 2, the switches
A novel high step-up dc–dc converter with coupled inductors has been proposed in which includes coupled inductors, diodes, capacitors, and metal-oxide semiconductor field-effect transistors (MOSFETs). The duty cycle
the power switch''s on-time. Proper capacitor and bootstrap resistance selection can drastically reduce these limitations. The maximum voltage that the bootstrap capacitor (VBS) can reach is
In addition, in [20], a high step-up dc-dc converter based on diode-capacitor connection to improve the dynamic performance of the converter in larger ranges of output
inductance of the coupled inductors. The scheme provides soft commutation of the switch and the diodes. The study analyses the modes of operation and obtains the basic fundamental
Abstract—Diode–capacitor-based dc–dc converters provide a simple and low cost solution for high step-up voltage regulation in solar and fuel cell generation.
a rectifier and used synchronous rectifiersinstead of diodes. This structure is more bigoutput capacitor because of output voltage ripple cancellation. Joung, M., Choi, B., Kim, H.-G.:
In this study a new scheme of a step-up converter with very high voltage gain is proposed. The scheme is based on a natural combination of the switched-coupled-inductor
Buck converter has some primary components in its implementation, that is, MOSFET as fast as electronic switching, diode, inductor, and capacitor. To acquire, the optimal
The voltage Vo continuous to decrease until the voltage drop across the diode becomes greater than 0.7 Volts. On Figure 6 this occurs at t=T2 and the value of Vo at that time is Vl =Vh
The scheme is based on a natural combination of the switched-coupled-inductor boost converter and the diode-capacitor multiplier. The study proposes a special scheme of
These converters contain only capacitors, switches and diodes - without and the second gives an analysis of their dynamic modes. The first part consists of three sections - Section II, III and
ZHANG et al.: DYNAMIC PI OF DIODE–CAPACITOR-BASED HIGH STEP-UP DC–DC CONVERTER THROUGH RHP ZERO ELIMINATION 6533 Fig. 1. Conventional dc–dc
Abstract: Diode-capacitor-based dc-dc converters provide a simple and low cost solution for high step-up voltage regulation in solar and fuel cell generation. Transient modeling
Based on atomic force microscopy, an electromagnetically shielded and electrically conductive tip is used in scanning microwave impedance microscopy (sMIM). sMIM allows for the
the small-signal analysis widely adopts the state-space averaging method so that the characteristic of dynamic voltage/frequency might be mitigated during the averaging process.
Load line is a straight line. From this line, we can find exact values of a semiconductor diode current and voltages. By changing the value of resistance and applied voltage value (these are the circuit parameters) we can
The diode-connected component (PM4) in the circuit acts as an internal regulator, effectively reducing the power supply voltage of the initial stage inverter, without
The capacitor is charged by the input voltage in series with the capacitor and the secondary side of the coupled–inductor through diode . The output capacitor releases its
capacitor based DRAM becomes the popular memory up to last few decades. Nowadays a gated diode is an alternative to the capacitor in DRAM which try to overcome the problems
Abstract: In this article, a high step-up DC-DC converter based on DCL (Diode-Capacitor-Inductor) stages is introduced and explored. The first advantage of this topology is that the
Diode–capacitor-based dc–dc converters provide a simple and low cost solution for high step-up voltage regulation in solar and fuel cell generation. Transient modeling
This paper studies the voltage imbalance problem, based on a model of the five-level DCC, carrying out a mathematical analysis of the capacitor voltage difference dynamics.
The dynamic model of the proposed LLC converter is built with the averaged large-signal modeling method. Then, the SM-PI control is proposed based on the dynamic model, and the fuzzy control is introduced to implement a smooth transition between the SM control and the PI control.
If vca<Vp, the resonant current iLr lags the inverter output voltage vab, and ZVS can be implemented, which results in increased efficiency and improved reliability. In general, the control angle γa is a continuous variable. In order to apply the SM control, a discrete SSPSM is proposed.
The zero-crossing moment of the resonant current can be captured by the DSP. Then, the signal vr3 can be easily generated. The logic signals vr1, vr2 and vr3 can be converted into the drive signals LQ1–LQ4 through the logic operations of NOT gate, NAND gate and RS flip-flop. After that, the dead-time of LQ1-LQ4 is generated by the RCD circuit.
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