Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"Peak-Current-Mode"”.
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Peak Current Mode Driver for Thermoelectric Cooler
… In order to both heat and cool, a bidirectional current must be supplied to the TEC. Therefore, a driver circuit is needed to supply the TEC with this bidirectional input. This thesis explores a design for an ultra-compact driver for a TEC that allows the system to quickly respond to …
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Design of a step-down DC-DC controller integrated circuit with adaptive dead-time control
A constant-frequency peak current mode synchronous step-down DC-DC controller integrated circuit has been designed with adaptive dead-time control. The adaptive dead-time control circuitry is implemented as digital delay-locked loop with digital counters as memory elements. In periodic steady …
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Development of a laboratory course in power electronic control circuitry based on a PWM buck controller
… an introduction to Integrated Circuit design. A peak current mode PWM controller for a buck converter is developed to illustrate the fundamental power electronic and analog circuit concepts that are presented.
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Control And Topology Improvements In Half-bridge Dc-dc Converters
… employs two MOSFETs to freewheeling the leakage current when the main MOSFETs of the half-bridge are both off. Driving voltage variation on the secondary side Synchronous Rectifier (SR) MOSFETs in self-driven circuit due to input voltage variation in bus converter applications is also …
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Design and Development of High-Frequency Switching Amplifiers Used for Smart Material Actuators With Current Mode Control
… develop a highly efficient power amplifier, and peak current mode control is proposed to reduce the actuator's hysteretic behavior. Since the low frequency current loop gain tends to be low due to the circuit's capacitive load, average current mode control is further proposed to boost the low …
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Average current-mode control and charge control for PWM converters
Two control schemes for PWM converters, average current-mode (ACM) control and charge control, are studied in this dissertation. The small-signal models are derived for continuous-conduction mode PWM converters employing these two controls. Sampled-data modeling is applied to the current loop …
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Current-Mode Control: Modeling and its Digital Application
Due to unique characteristics, current-mode control architectures with different implementation approaches have been widely used in power converter design to achieve current sharing, AVP control, and light-load efficiency improvement. Therefore, an accurate model for current-mode control is …
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High performance control of VRM circuits
… because of its ability to handle large load current and to achieve fast dynamic transient response under large step-load condition.The first part of this thesis fully investigates this issue for three popular control schemes used currently: Voltage Mode Control (VMC), Average Current Mode …
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A line and load independent zero voltage switching DC/DC full bridge converter topology
… blocking capacitor is essential to prevent the current sense transformer from saturation, and the study of this thesis shows that contrary to the conventional pulse width modulated full bridge converter, the peak current mode control can still be used along with the blocking capacitor in a phase …
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Modeling of V2 Control with Composite Capacitors and Average Current Mode Control
Various types of current mode control are being used in different applications. Model for current mode control is indispensable for proper system design. Since 1980s, modeling of current mode control has been a hot topic in power electronics field. In current mode control, sub-harmonic oscillation …
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Synchronized Communication Network for Real-Time Distributed Control Systems in Modular Power Converters
… It is proved that with appropriate arm current shaping in the timescale of a switching period, referred as the switching-cycle control (SCC), such line-frequency dependence can be eliminated and MMCs are enabled to work even in dc-dc mode. Yet the SCC demands multiple times of arm …
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Advanced Control Schemes for High-Bandwidth Multiphase Voltage Regulators
… it is found that the stability margin of current-mode control in high-BW design is very sensitive to operating conditions and component tolerance, depending on the performance of the current-sensing techniques, modulation schemes, and interleaving approaches. The primary objective of this …