نتایج جستجو برای: dc motorgenerator

تعداد نتایج: 55750  

2004
Kwok-Tong Chau

A new software tool for learning the dynamic behavior of power electronics circuits is developed for undergraduate students. This tool incorporates the merits of two well-known software packages, namely, the realistic time-domain simulation of PSpice and the parametric identification process of MatLab. Hence, without going through complicated mathematics, the students can easily obtain the tran...

2011
Carlos Carvalho Guilherme Lavareda Nuno Paulino

A DC-DC step-up micro power converter for solar energy harvesting applications is presented. The circuit is based on a switchedcapacitor voltage tripler architecture with MOSFET capacitors, which results in an area approximately eight times smaller than using MiM capacitors for the 0.13μm CMOS technology. In order to compensate for the loss of efficiency, due to the larger parasitic capacitance...

Journal: :IJAPUC 2013
Xiaoyuan Wang Xiaoguang Wang Tao Fu

Axial Flux Ironless permanent magnetic synchronous motor (AFIPMSM) is a new permanent magnetic motor. It has many advantages, such as high torque-to-weight ratio, good efficiency, no cogging torque, and the sinusoidal back EMF. It gradually becomes the good choice in drive system. However, the small armature winding inductance causes the current is not continued with the PWM control based on VS...

2014
S.Rama Reddy

--------------------------------------------------------------ABSTRACT------------------------------------------------------This paper deals with modelling and simulation of high step up DC – AC converter with micro source at the input. The 15V DC is stepped up to 230V DC using high step up DC-DC Converter. This DC is converted into AC using a single phase inverter. The DC-AC converter system i...

Journal: :I. J. Bifurcation and Chaos 2011
R. Hamza Moez Feki Nabil Derbel B. G. M. Robert Abdelali El Aroudi

In this work, a zero static error proportional controller for a two-cell DC-DC buck converter is synthesized and analyzed. Under a traditional proportional control scheme, the system presents a constant error of the current supplying the output load. As the proportional feedback gain is increased, the average static error decreases. However, sub-harmonic oscillations and chaotic behavior emerge...

2014
Matti Liukkonen Ari Hentunen Jussi Suomela

This paper presents efficiency analysis of the power buffering in common voltage bus systems. Operation of the power buffering is briefly described with the power control experiments. The efficiency measurement setup and performed measurements from the charging and discharging events of the ultracapacitor module with the dc-dc converter are presented. As a result, the efficiency map of the dc-d...

Journal: :IBM Journal of Research and Development 1983
Albert X. Widmer Peter A. Franaszek

In this paper, an 8b/10b encoding serializer/deserializer (SerDes) circuit using a DC-balanced, partitioned block, 8b/10b transmission code was presented. The information format of this transmission code consists of packets which are variable in length and can be suitable for high speed applications. Serializer and deserializer blocks were designed separately. The serializer circuit gets the 8-...

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...

2015
M. Gopichand Naik

---------------------------------------------------------------------***--------------------------------------------------------------------Abstract The interconnection of small modular devices such as photovoltaic, small wind turbines and storage devices ,commonly storage batteries to a Low Voltage distribution system leads to a new energy system known as the Microgrid. This paper presents the...

2015
M. Radha J. Srinivasa Rao

Conventional voltage mode control only offers limited performance for LLC series resonant DC-to-DC converters experiencing wide variations in operational conditions. When the existing voltage mode control is employed, the closed-loop performance of the converter is directly affected by unavoidable changes in power stage dynamics. Thus, a specific control design optimized at one particular opera...

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