Results 271 to 280 of about 423 (305)

High-resolution switched-capacitor algorithmic digital-to-analogue convertor

IEE Proceedings G (Electronic Circuits and Systems), 1985
A new high-resolution switched-capacitor algorithmic digital-to-analogue (D/A) convertor is described. It employs a novel voltage division technique to reduce errors owing to capacitor mismatch. This increases the linearity limit imposed by capacitor mismatch to 16 bits or more.
openaire   +1 more source

On the reduced component count and low loss switched capacitor DC/DC convertors

Proceedings of Second International Conference on Power Electronics and Drive Systems, 2002
A very large number of components, in the conventional switched capacitor DC/DC stepdown convertor, make them unsuitable for practical applications and implementation in the integrated circuit form. Large ripple and charge-up losses result because of the in-series charging and parallel discharging into the load.
P. Chhawchharia, D.K.W. Cheng, Y.S. Lee
openaire   +1 more source

Use of the transistor as a switch in precise analogue—digital-convertor circuits

Proceedings of the Institution of Electrical Engineers, 1964
The transistor can be used as a switch, but its operating characteristic departs from the ideal by having a finite leakage current when open and an effective contact potential when closed. These effects, and the limitations they impose in use with precise analogue-digital convertors, are discussed.
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Automated ripple analysis using KBM method [switching power convertor harmonics]

Proceedings of the IECON'97 23rd International Conference on Industrial Electronics, Control, and Instrumentation (Cat. No.97CH36066), 2002
Conventional averaged models of switching power converters are useful for control loop design, but are inadequate for the main circuit design because of their inability to predict waveform details. A systematic method for recovering ripple components from the averaged model is presented in this paper.
null Jian Sun, R.M. Bass
openaire   +1 more source

Comparative assessment of zero voltage switched off-line power convertor topologies

IEE Proceedings B Electric Power Applications, 1992
Four half-bridge zero voltage switched (ZVS) convertor topologies are compared for offline applications in the 100–200 W range at a full-load switching frequency of 1 MHz. First, the quasi-resonant convertor (QRC) and the parallel-loaded resonant convertor (PRC) are studied.
W.J.B. Heffernan, P.D. Evans
openaire   +1 more source

Steady state analysis & design of switched capacitor DC-DC convertors

IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029), 2003
This paper presents a new approach to modelling switched capacitor (SC) DC-DC power converters in the steady-state. The distinguishing feature of SC DC-DC converters, i.e., no inductance elements and therefore the relationship in electricity quantity among the component capacitors can be determined, is made full use of, thus the analysis is much ...
null Jian Liu, null Zhiming Chen
openaire   +1 more source

Step-up/down voltage PWM AC to DC convertor with one switching device

IEE Proceedings B Electric Power Applications, 1993
A new PWM AC-DC convertor with only one switching device is proposed. The control of the AC-DC convertor based on the PWM strategy to make the source current in phase with the source voltage is described, and a simple and practical input filter design is proposed.
A. Mechi, S. Funabiki
openaire   +1 more source

Design and implementation of a single phase current-forced switching mode bilateral convertor

IEE Proceedings B Electric Power Applications, 1991
A single-phase switching mode bilateral convertor using current-forced hysteresis switching control is designed and successfully implemented. The power circuit configuration is simple, since only one full-bridge convertor is required, and the lock-out circuits are not necessary.
C.M. Liaw, T.H. Chen, T.C. Wang, G.J. Cho, C.M. Lee, C.T. Wang   +5 more
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Analyses of static and dynamic characteristics of practical step-up nine-switch matrix convertor

IEE Proceedings B Electric Power Applications, 1993
The static and dynamic characteristics of a practicable step-up nine-switch matrix convertor under the control strategy proposed by Venturini are analysed fully by the recently presented circuit DQ transformation technique and signal flow graphs. The step-up nine-switch matrix convertor consists of nonideal voltage and current sources, such as occur in
Kwon, Woo-Hyen, Cho, GH Cho, Gyu-Hyeong
openaire   +1 more source

Convertor Performance Evaluation at Load Switching Point

2021 4th International Conference on Recent Developments in Control, Automation & Power Engineering (RDCAPE), 2021
Bhupal Singh, S. S. Dhillon, Sonali Negl
openaire   +1 more source