Results 11 to 20 of about 2,337 (289)
IET Power Electronics, 2023 This study presents a submodule capacitor voltage self‐balancing method for modular multilevel converters (MMCs) based on switching state matrix construction, which has an advantage over eliminating massive sensor demanding and alleviating computational ...
Zhou Yiyuan +7 more
doaj +1 more source
Soft switch-avalanche IGBT convertor
Electronics Letters, 1990 A full bridge dc-dc converter using a zero voltage and zero current switching technique is described. This circuit utilizes the characteristics of the IGBT to achieve power and frequency combinations that are much higher than those previously reported for this device.
K. Chen, T.A. Stuart
openaire +1 more source
Testing of mixed-signal systems using dynamic stimuli [PDF]
, 1993 The impulse response of a linear circuit element contains enough information to functionally characterise that element. A technique for comparison of observed and expected (reference) transient responses, which results in an absolute measure of device ...
Evans, PSA, Pritchard, TI, Taylor, D
core +1 more source
New bilinear switched-capacitor immittance convertor circuit
Electronics Letters, 1980 A new switched-capacitor immittance convertor circuit is proposed which enables the conversion of the capacitive (n+1)-terminal networks into the corresponding bilinearly equivalent inductive (n+1)-terminal networks. The proposed immittance converter circuit requires only two operational amplifiers and five capacitors.
T. Inoue, F. Ueno
openaire +1 more source
IGBT convertor with active snubber for soft switching
Electronics Letters, 1991 This full bridge dc-dc convertor with IGBTs uses zero voltage switching (ZVS) for one leg of the bridge and zero current switching (ZCS) for the other. It is shown that an active snubber greatly improves the performance over previous methods. Experimental results are shown for a 6 kW circuit switching at 20 kHz.
B.J. Masserant, J. Shriver, T.A. Stuart
openaire +1 more source
IEEE Access, 2020 In recent decades, renewable energy has become an important part of the power generation field. In any renewable energy system, power converters form the dominant part, owing to their important role.
Laith M. Halabi +2 more
doaj +1 more source
Improved switched-capacitor algorithmic analogue-to-digital convertor
Electronics Letters, 1985 A novel switched-capacitor circuit is presented for algorithmic analogue-to-digital conversion. Besides the reduced component count, the proposed circuit shows that it can accept a differential analogue signal. A conversion accuracy higher than 12 bits is easily attainable with its integrated version.
H. Matsumoto, K. Watanabe
openaire +1 more source
An On-line Diagnostic Method for Open-circuit Switch Faults in NPC Multilevel Converters [PDF]
, 2016 On-line condition monitoring is of paramount importance for multilevel converters used in safety-critical applications. A novel on-line diagnostic method for detecting open-circuit switch faults in neutral-point-clamped (NPC) multilevel converters is ...
Demerdash, Nabeel, He, Jiangbiao
core +2 more sources
Design of Optimal QFT Controller and Prefilter for Buck Converter Using Metaheuristic Algorithms
Modelling and Simulation in Engineering, 2018 A buck converter is a step-down switching regulator. Buck convertors are being widely used in industrial applications that rely on regulated output voltage under fluctuating input voltage.
Nitish Katal, Shiv Narayan
doaj +1 more source
Switched-capacitor pipelined logarithmic A/D and D/A convertors [PDF]
IEE Proceedings G Circuits, Devices and Systems, 1991 The paper presents two switched- capacitor circuits with modest complexity to implement a pipelined logarithmic digital- analogue convertor (LDAC) and logarithmic analogue-digital convertor (LADC), respectively, which spend only one clock time per conversion.
M.-H. Cheng, T.-C. Huang
openaire +1 more source