Hong Ye

Positive output super-lift converters

The voltage lift technique has been successfully employed in design of DC/DC converters, e.g., four series Luo converters. However, the output voltage increases in arithmetic progression. This paper introduces a novel approach-super-lift technique that implements the output voltage increasing in geometric progression. It effectively enhances the voltage transfer gain in power law.

Advanced DC/DC Converters

INTRODUCTION Historical Review Multiple Quadrant Choppers Pump Circuits Development of DC/DC Conversion Technique Categorize Prototypes and DC/DC Converters Family Tree VOLTAGE-LIFT CONVERTERS Introduction Seven Self-Lift Converters Positive Output Luo-Converters Negative Output Luo-Converters Modified Positive Output Luo-Converters Double Output Luo-Converters POSITIVE OUTPUT SUPER-LIFT LUO-CONVERTERS Introduction Main Series Additional Series Enhanced Series Re-Enhanced Series Multiple-Enhanced Series Summary of Positive Output Super-Lift Luo-Converters Simulation Results Experimental Results NEGATIVE OUTPUT SUPER-LIFT LUO-CONVERTERS Introduction Main Series Additional Series Enhanced Series Re-Enhanced Series Multiple-Enhanced Series Summary of Negative Output Super-Lift Luo-Converters Simulation Results Experimental Results POSITIVE OUTPUT CASCADE BOOST CONVERTERS Introduction Main Series Additional Series Double Series Triple Series Multiple Series Summary of Positive Output Cascade Boost Converters Simulation and Experimental Results NEGATIVE OUTPUT CASCADE BOOST CONVERTERS Introduction Main Series Additional Series Double Series Triple Series Multiple Series Summary of Negative Output Cascade Boost Converters Simulation and Experimental results MULTIPLE-QUADRANT OPERATION LUO-CONVERTERS Introduction Circuit Explanation Mode A (Quadrant I Operation) Mode B (Quadrant II Operation) Mode C (Quadrant III Operation) Mode D (Quadrant IV Operation) Simulation Results Experimental Results Discussion SWITCHED-COMPONENT CONVERTERS Introduction A Two-Quadrant SC DC/DC Converter Four-Quadrant Switched Capacitor DC/DC Converter Switched Inductor Four-Quadrant DC/DC Converter POSITIVE OUTPUT MULTIPLE-LIFT PUSH-PULL SWITCHED-CAPACITOR CONVERTERS Introduction Main Series Additional Series Enhanced Series Re-enhanced Series Multiple-Enhanced Series Theoretical Analysis Summary of this Technique Simulation Results Experimental Results NEGATIVE OUTPUT MULTIPLE-LIFT PUSH-PULL SWITCHED-CAPACITOR CONVERTERS Introduction Main Series Additional Series Enhanced Series Re-Enhanced Series Multiple-Enhanced Series Summary of this Technique Simulation and Experimental Results MULTIPLE-QUADRANT SOFT-SWITCHING CONVERTERS Introduction Multiple-Quadrant DC/DC ZCS Quasi-Resonant Converters Multiple-Quadrant DC/DC ZVS Quasi-Resonant Converter Multiple-Quadrant Zero-Transition DC/DC Converters SYNCHRONOUS RECTIFIER DC/DC CONVERTERS Introduction Flat Transformer Synchronous Rectifier Converter Active Clamped Synchronous Rectifier Converter Double Current Synchronous Rectifier Converter Zero-Current-Switching Synchronous Rectifier Converter Zero-Voltage-Switching Synchronous Rectifier Converter MULTIPLE ENERGY-STORAGE ELEMENTS RESONANT POWER CONVERTERS Introduction Bipolar Current and Voltage Source A 2-Element RPC Analysis P-CLL CURRENT SOURCE RESONANT INVERTER Introduction Mathematic Analysis Simulation Results Discussion CASCADE DOUBLE G-CL CURRENT SOURCE RESONANT INVERTER Introduction Mathematic Analysis Simulation Results Experimental Results Discussion CASCADE REVERSE DOUBLE G-LC RESONANT POWER CONVERTER Introduction Steady-State Analysis of Cascade Reverse Double G-LC RPC Resonance Operation and Modeling Small-Signal Modeling of Cascade Reverse Double G-LC RPC Discussion DC ENERGY SOURCES FOR DC/DC CONVERTERS Introduction Single-Phase Half-Wave Diode Rectifier Single-Phase Bridge Diode Rectifier Three-Phase Half-Bridge Diode Rectifier Three-Phase Full-Bridge Diode Rectifier with Resistive Load Thyrister Rectifiers CONTROL CIRCUIT. EMI AND APPLICATIONS EXAMPLES OF DC/DC CONVERTERS Introduction Luo-Resonator EMI, EMS and EMC Some DC/DC Converter Applications

Negative output super-lift converters

The voltage lift technique has been successfully employed in design of DC/DC converters, e.g., four series Luo-converters. However, the output voltage increases in arithmetic progression. Negative output super lift technique in this paper implements the output voltage increasing in geometric progression. It effectively enhances the voltage transfer gain in power-law.

Negative output super-lift Luo-Converters

Voltage lift technique has been successfully employed in design of DC/DC converters, e.g. three series Luo-Converters. However, the output voltage increases in arithmetic progression. This paper introduces a novel approach super lift technique that implements the output voltage increasing in geometric progression. It effectively enhances voltage transfer gain in power-law.

Negative output multiple-lift push-pull SC Luo-converters

Micropower-consumption technique requires high power density DC/DC converters and power supply sources. Voltage lift technique is a popular method to apply in electronic circuit design. Since switched-capacitor can be integrated into power IC chip, its size is small. Combining both switched-capacitor and voltage lift techniques can construct the DC/DC converters with small size, high power density, high voltage transfer gain, high power efficiency and low EMI.

Super-lift Luo-converters

The voltage lift technique has been successfully employed in design of DC/DC converters, e.g. three series Luo-converters. However, the output voltage increases in arithmetic progression. This paper introduces a novel approach-super lift technique that implements the output voltage increasing in geometric progression. It effectively enhances voltage transfer gain in power series.

Ultra-lift Luo-converter

Voltage-lift (VL) technique has been successfully applied in the design of power DC/DC converters. Good examples are the three series Luo-converters. Using VL technique can obtain high voltage transfer gain. Super-lift (SL) technique has been paid much attention since it yields high voltage transfer gain. This paper introduces the ultra-lift Luo-converter to be the novel approach of the new technology - ultra-lift (UL) technique, which produces even higher voltage transfer gain. Our analysis and calculation illustrated the advanced characteristics of this converter.

Mathematical modeling of power DC/DC converters

Mathematical modelling of power DC/DC converters is a historical problem accompanying with the development of the DC/DC conversion technology since 1940s. The traditional mathematical modelling is successful to describe fundamental converters, but not available for complex structure converters since the differential equation order increases very high. We have to search other way to establish mathematical modelling for power DC/DC converters.

Four-quadrant zero-transition DC/DC Luo-Converters

The zero-transition (ZT) technique significantly reduces the power losses across the DC/DC power converter switches during switch-on and -off. Unfortunately, most of the papers only discuss converters working in single quadrant operation. This paper introduces four-quadrant ZT DC/DC Luo-converters that are new prototypes of ZT converters. They perform soft-switching four-quadrant operation without significant voltage and current stresses, which effectively reduces the power losses and largely increases the power transfer efficiency. Test results verified the design and analysis.