Results 271 to 280 of about 157,722 (307)

Interleaved converters based on hysteresis current control

2000 IEEE 31st Annual Power Electronics Specialists Conference. Conference Proceedings (Cat. No.00CH37018), 2002
A method is proposed to improve the interleaved operation of half-bridge converters with variable switching frequency. It is based on cycle-by-cycle measurements of the switching period of one module, with the needed phase shift for the other bridges obtained by means of analog circuitry to allow fast dynamic response.
Batchvarov, J.S., Duarte, J.L., Hendrix, M.A.M.   +2 more
openaire   +2 more sources

High-precision current control through opposed current converters

2011
Switch blanking time, also referred to as dead-time, is one of the dominant sources of output current and voltage distortion in pulse width modulated power amplifiers. Extensive studies are known on elimination, minimization, and compensation of the effect. Most techniques achieve a reduction of the distortion but are not capable of completely removing
Schellekens, J.M., Duarte, J.L., Huisman, H., Hendrix, M.A.M.   +3 more
openaire   +1 more source

Isolated Current Feedback Control for Buck Converter

2005 IEEE Conference on Electron Devices and Solid-State Circuits, 2006
This paper proposes the design and technique for controlling DC voltage of DC-DC converter using isolated current feedback. When testing with different loads [1], the output obtained has good voltage regulator, a wide input voltage range, quick response and safe.
openaire   +1 more source

Adaptive digital current mode controller for DC-DC converters

2015 17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe), 2015
An adaptive control technique for a digital current mode control of dc-dc converters is proposed in this paper. The adaptive digital controller is designed to maintain the optimum gain-phase of the outer control loop regardless of the changes in the load value.
Taeed, Fazel, Andersen, Karsten Holm, Nymand, Morten   +2 more
openaire   +2 more sources

A new current-mode control for DC/DC converter

INTELEC 05 - Twenty-Seventh International Telecommunications Conference, 2005
Current-sensing is used widely in smart power chips, especially in DC/DC converter for voltage regulator modules (VRM), implemented with interleaved synchronous rectifier buck converters. The interleaved technique main difficulty is due to its current-sharing control between the several modules.
DI BLASI, Giuseppe Maria, CAPPONI, Giuseppe, LIVRERI, Patrizia, F. MARINO   +3 more
openaire   +2 more sources

A digital current controller for zero-current transition bidirectional converter

2008 13th International Power Electronics and Motion Control Conference, 2008
This paper presents a digital current controller for zero-current transition (ZCT) bidirectional converters. In order to reduce switching losses and noises, a soft-switching technique is adopted. It is suitable for the pulse-width modulation (PWM), because the resonant transition is very short and it is independent of the switching frequency.
null Nobuyuki Kasa, null Takahiko Iida
openaire   +1 more source

Average Current Control of Buck-Boost Converter

2022 IEEE 9th Uttar Pradesh Section International Conference on Electrical, Electronics and Computer Engineering (UPCON), 2022
Chandini Gowda M, P B Savitha
openaire   +1 more source

Charge current control for LLC resonant converter

2015 IEEE Applied Power Electronics Conference and Exposition (APEC), 2015
This paper proposes a charge current control method for LLC resonant converter where the total charge of the switch current is compared with the control voltage to modulate the switching frequency. Since the proposed control method uses resonant current for only a half switching cycle together with duty cycle balancing circuit, the circuit can be ...
openaire   +1 more source

Bifurcation Control of Current-type Boost Converter

2022 IEEE International Conference on Mechatronics and Automation (ICMA), 2022
Youjie Ma, Lei Fang, Xuesong Zhou, Shuo Wang   +3 more
openaire   +1 more source

Power converter control using calculated average current

2019
A controller circuit is configured to drive a switching element to establish a channel that electrically couples a source to an inductive element of a buck converter and generate a minimum current sample. In response to current at the switching element exceeding a target peak current threshold of a set of control parameters for the buck converter, the ...
Gasparri, O, Baschirotto, A, Del Croce, P, Pidutti, A   +3 more
openaire   +1 more source