Modeling and Analysis of Variable Frequency One-Cycle Control on High-Power Switched-Capacitor Converters

An Analytical Approach for Design of a Cross-Connected Fibonacci Switched Capacitor Converter

“…From Equation 4, the output voltage can be approximately rewritten as Equation 5, where V C x,min and V C x,max (x = 1, 2, b) are the minimum and maximum voltages of the capacitors. If this approximation is not conducted, all of the minimum and maximum voltages of the capacitors should be derived such as in the method in [32][33][34].…”

“…The CCFSCC in [26,27] was analyzed based on a four-terminal equivalent circuit model [28], in which the analysis neglects circuit parameters such as its operation frequency and capacitances of capacitors. Some analysis methods consider these parameters, e.g., slow and fast switching limit model [29][30][31] and charge-balance transient method [32][33][34]. In [29][30][31], a target circuit is modeled with an assumption of its 50% duty ratio.…”

“…In addition, this method neglects analysis parameters such as on-resistors of switches and variation in voltages of capacitors. In [32][33][34], an SCC is examined based on the fundamental circuit laws such as Kirchhoff's voltage law (KVL), Kirchhoff's current law (KCL), and RC network solving methods. This analysis method can accurately model the SCCs compared with their simulations.…”

“…This analysis method can accurately model the SCCs compared with their simulations. However, the method in [32][33][34] calls for complex calculations as circuit components increase because all of capacitors' voltages must be derived.…”

An On-Chip Digital Monostable Multivibrator Using Inverter-based Delay Chains

“…[1][2][3] Especially in sensor signal processing system like resistive and capacitive sensors detecting position, displacement, pressure, acceleration, humidity and so on, monostable multivibrator is a crucial part which is used to convert di®erent kinds of analog sensor signals into square digital or triangular semi-digital signals. [4][5][6][7][8][9][10][11][12] Since the monostable multivibrators used in the traditional applications are working in the frequency range of Hz-MHz, they are usually realized by using high capacitance timing capacitors and high resistance timing resistors to achieve time constant in the range of s-s. Moreover, the width of the output triggered pulse in these applications must be stable and not sensitive to the power supply voltage and temperature variations, so the o®-chip passive capacitors and resistors are more suitable than the on-chip active elements.…”