Results 171 to 180 of about 11,626 (218)

Optical express-biopsy of gliomas using macroscopic fluorescence lifetime imaging. [PDF]

open access: yesBiomed Opt Express
Shirmanova MV   +13 more
europepmc   +1 more source

PWM conductance control

PESC '88 Record., 19th Annual IEEE Power Electronics Specialists Conference, 2003
Conductance (or current) control of switching regulators generally uses peak or hysteresis (e.g. LC/sup 3/) controllers, the advantages and problems of which have been widely reported. The behavior of a simple conventional pulsewidth-modulated (PWM) conductance control principle that has been used on space programs is described and analyzed.
D. O'Sullivan, H. Spruyt, A. Crausaz
openaire   +1 more source

Microcomputer Control of PWM Inverters

IEEE Transactions on Industrial Electronics, 1982
A method is proposed for implementing on a microcomputer the control of inverters modulated with a digital technique. It consists of storing in the microcomputer memory the switching patterns relative to a limited number of levels of the first harmonics of the inverter output voltage and of computing on line the actual pattern by interpolating the ...
BUJA, GIUSEPPE, FIORINI P.
openaire   +3 more sources

New PWM-Controlled GTO Converter

IEEE Transactions on Power Electronics, 1985
A new pulsewidth modulation (PWM)-controlled GTO converter circuit is proposed. An auxiliary circuit capacitor is used to treat the commutating energy in the main circuit and to clamp the commutating impulse voltage at the desired level with the fundamental power factor of unity. An analysis of the circuit operation is verified experimentally.
P. Viriya, H. Kubota, K. Matsuse
openaire   +1 more source

PWM Controlled Proportional Equipment

Applied Mechanics and Materials, 2012
The paper presents an experimental model of PWM controlled proportional pneumatic direction control valve developed by the authors, as well as the functioning of a pneumatic system that incorporates the original solution of valve. The main parameters that control the system can be settled using a software application developed for that purpose.
Mihai Avram   +3 more
openaire   +1 more source

Experimental PWM Controlled Device

2019 International Conference on Industrial Engineering, Applications and Manufacturing (ICIEAM), 2019
Using Pulse-Width Modulation (PWM) for LEDs powering, the frequency should be high enough so that the human eye does not notice flicker. High frequency also allows for a significant energy efficiency: most LEDs have a peak of the efficiency close to the maximum current allowed. Thus, the pulse switching on the current maximum with brightness adjustment
Aleksey V. Kudryashov   +2 more
openaire   +1 more source

PWM Inverter Control by System Control Theory

IFAC Proceedings Volumes, 1990
Abstract Systematical design method of pulse patterns of PWM(Pulse Width Modurated) inverter is proposed in this paper on the basis of system control theory. Merits of the design by means of system control theory are as follows: (1) Pulse patterns are designed in consideration of the load conditions and then, optimal pulse patterns are designed for ...
T. Egami, T. Tsuchiya
openaire   +1 more source

Home - About - Disclaimer - Privacy