New directions in DC-DC power conversion based on idealized concepts leading ultimately to the asymmetrical duty-cycle power converter

1997 ◽  
Vol 44 (8) ◽  
pp. 722-727 ◽  
Author(s):  
P. Imbertson ◽  
N. Mohan
Keyword(s):  
Duty Cycle ◽  
Power Conversion ◽  
Power Converter ◽  
Dc Power ◽  
New Directions

Design and Implementation of a Novel High-Step-Up DC-DC Converter

2013 ◽  
Vol 284-287 ◽  
pp. 2498-2501 ◽  
Author(s):  
Chun An Cheng ◽  
Hung Liang Cheng ◽  
Chien Hsuan Chang ◽  
En Chih Chang ◽  
Fu Li Yang
Keyword(s):  
Power Conversion ◽  
Input Voltage ◽  
Power Converter ◽  
Voltage Level ◽  
Dc Voltage ◽  
Flyback Converter ◽  
Dc Power ◽  
Integrated Boost ◽  
High Output Voltage ◽  
High Output

This paper proposes a novel high-step-up DC-DC power converter for high output-voltage applications from a low level of input voltage. The presented power converter is composed of a integrated boost-flyback converter with two output windings plus cascaded voltage doublers to boost up the 12 V input voltage to a high DC voltage level of 400 V. Description of the presented DC-DC power conversion circuit, and experimental results of a prototype converter for providing 40W output power with a 12V input DC voltage are demonstrated.

scholarly journals Measuring Current in a Power Converter Using Fuzzy Automatic Gain Control

2021 ◽  
Vol 11 (13) ◽  
pp. 5793
Author(s):  
Bartosz Dominikowski
Keyword(s):  
High Resolution ◽  
Fuzzy Controller ◽  
Automatic Gain Control ◽  
Gain Control ◽  
Measurement Range ◽  
Power Converter ◽  
Current Measurement ◽  
Dc Power ◽  
Programmable Gain ◽  
Electric Loads

The accuracy of current measurements can be increased by appropriate amplification of the signal to within the measurement range. Accurate current measurement is important for energy monitoring and in power converter control systems. Resistance and inductive current transducers are used to measure the major current in AC/DC power converters. The output value of the current transducer depends on the load motor, and changes across the whole measurement range. Modern current measurement circuits are equipped with operational amplifiers with constant or programmable gain. These circuits are not able to measure small input currents with high resolution. This article proposes a precise loop gain system that can be implemented with various algorithms. Computer analysis of various automatic gain control (AGC) systems proved the effectiveness of the Mamdani controller, which was implemented in an MCU (microprocessor). The proposed fuzzy controller continuously determines the value of the conversion factor. The system also enables high resolution measurements of the current emitted from small electric loads (≥1 A) when the electric motor is stationary.

Design of radio frequency integrated circuit for RF to DC power converter for bio-medical application

2020 ◽  
Author(s):  
D. Tamilarasi ◽  
P. Ramesh ◽  
Raja Krishnamoorthy ◽  
C. Bharatiraja ◽  
T. Jayasankar
Keyword(s):  
Radio Frequency ◽  
Integrated Circuit ◽  
Medical Application ◽  
Power Converter ◽  
Dc Power
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