نتایج جستجو برای: multiple output dc

تعداد نتایج: 970753  

Journal: :Iet Power Electronics 2023

Multi-input converters play an important role in integrating the independent energy sources utilized grid-connected system and electric vehicle (EV) applications. In this scenario, several types of multi-input are presented literature. Most MICs operated using a time-sharing scheme. This leads to restricted duty cycle which limits utilization output voltage. To overcome aforementioned limitatio...

Journal: :IEICE Transactions 2011
Xin Zhang Yu Pu Koichi Ishida Yoshikatsu Ryu Yasuyuki Okuma Po-Hung Chen Takayasu Sakurai Makoto Takamiya

In this paper, a novel switched-capacitor DC-DC converter with pulse density and width modulation (PDWM) is proposed with reduced output ripple at variable output voltages. While performing pulse density modulation (PDM), the proposed PDWM modulates the pulse width at the same time to reduce the output ripple with high power efficiency. The prototype chip was implemented using 65 nm CMOS proces...

M. Sharafi P. Amiri

This paper presents a novel control method to improve the efficiency of low-voltage DC-DC converters at light loads. Pulse Width Modulation (PWM) converters have poor efficiencies at light loads, while pulse frequency modulation (PFM) control is more efficient for the same cases. Switching losses constitute a major portion of the total power loss at light loads. To decrease the switching losses...

Journal: :International Journal of Scientific Research in Science, Engineering and Technology 2020

2010
Deshang Sha Zhiqiang Guo Xiaozhong Liao

Input-series-output-parallel (ISOP) converters consisting of multiple modular DC/DC converters can enable low voltage rating switches to be used under high voltage input applications. This paper presents a digital control strategy, which can achieve equal sharing of input voltage for a modular ISOP system consisting of two-transistor forward DC/DC converters by forcing the input voltages of nei...

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This paper includes modeling and simulation of 180 MW units of pumped storage power plant with Variable speed machines. In this method, voltage source inverters are used instead of traditional cyclo-converters. This paper aims to control the voltage source inverters and maintain DC voltage at a constant value. AC/ DC/ AC converter is used in system configuration structure in order to control an...

2014
Se-Jin Kim Young-Cheol Lim

In the conventional DC-AC inverter consisting of two DC-DC converters with unipolar output capacitors, the output capacitor voltages of the DC-DC converters must be higher than the DC input voltage. To overcome this weakness, this paper proposes a single-phase DC-AC inverter consisting of two embedded Z-source converters with bipolar output capacitors. The proposed inverter is composed of two e...

2015
S. Kamalakkannan

-The simulation of a nonlinear controller with power sharing control capabilities for a wind energy system double input buck boost–buck boost converter is presented. A multiple-input DC–DC converter is useful to obtain the regulated output voltage from input power source such as a wind array. Double input DC-DC buck boost converter principle of operation and the equations describing the convert...

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