Optimal Operating-Frequency-Searching Method Using Harmonics of Resonant Inverter Output Voltage

2020 ◽  
Vol 140 (7) ◽  
pp. 562-563
Author(s):  
Sho Igarashi ◽  
Hitoshi Haga
Keyword(s):  
Output Voltage ◽  
Operating Frequency ◽  
Optimal Operating ◽  
Resonant Inverter ◽  
Searching Method

scholarly journals Quasi-resonant inverter power pulsed radar system

2015 ◽  
pp. 27-32
Author(s):  
V. N. Dolov ◽  
V. F. Strelkov ◽  
V. V. Vanyaev ◽  
A. A. Kochnev
Keyword(s):  
Output Voltage ◽  
Closed Loop ◽  
Power Transmission ◽  
Voltage Regulation ◽  
Open Loop ◽  
Radar System ◽  
Resonant Converter ◽  
Resonant Inverter ◽  
Pulse Output ◽  
External Characteristics

Presented by quasi-resonant converter of a pulse of microwave power transmission device lamp radar with pulse output voltage regulation. The features of his work are given a mathematical model, the external characteristics and some simulation results in open-loop and closed-loop output voltage system.

scholarly journals Multiphase resonant inverter with sine wave output voltage

2017 ◽  
Vol 102 ◽  
pp. 01037
Author(s):  
Irina Vavilova ◽  
Dmitriy Ogorodnikov
Keyword(s):  
Output Voltage ◽  
Sine Wave ◽  
Resonant Inverter

Development of High Voltage High Frequency Resonant Inverter Power Supply for Atmospheric Surface Glow Barrier Discharges

2005 ◽  
Vol 107 ◽  
pp. 81-86 ◽  
Author(s):  
M. Nisoa ◽  
D. Srinoum ◽  
P. Kerdthongmee
Keyword(s):  
High Voltage ◽  
Power Supply ◽  
High Frequency ◽  
Output Voltage ◽  
Pulse Width Modulation ◽  
Power Converter ◽  
Maximum Output ◽  
Resonant Inverter ◽  
Resonant Inductor ◽  
Barrier Discharges

High-voltage high-frequency power supply using voltage-fed load resonant inverter with a series-compensated resonant inductor has been developed for efficient atmospheric surface glow barrier discharges(ASGBD). It produces a controllable frequency and sinusoidal alternating voltage output. The maximum output voltage is about 6 kV peak to peak. Resonant power converter can be tune easily to the resonant frequency of the load. Operating frequency varies according to the load and voltage level typically in the range of 10 kHz and 1 MHz range. The output voltage is controlled by using pulse width modulation technique. The power supply developed in this paper is applied successfully for ozoniser that can produce high concentrate ozone by using ASGBD for agricultural industry applications.

scholarly journals Pulse Density Modulation Based Series Resonant Inverter Fed Induction Heater System

2018 ◽  
Vol 9 (2) ◽  
pp. 690
Author(s):  
S. Jaanaa Rubavathy ◽  
P. Murugesan
Keyword(s):  
Induction Heating ◽  
Output Voltage ◽  
Control Strategies ◽  
Resonant Inverter ◽  
Pulse Density ◽  
Series Resonant ◽  
Density Modulation ◽  
Simulation Results ◽  
Pulse Density Modulation ◽  
Series Resonant Inverter

This paper deals with implementation of a multi-output Series Resonant Inverter(SRI) for induction heating applications, which uses pulse density modulation(PDM) control for full bridge Series resonant inverters for output voltage and power control. It ensures better efficiency performances than conventional control strategies. The proposed converter can be considered as a two output extension of a full bridge inverter. This full bridge inverter can control the two outputs, simultaneously and independently, up to their rated powers, which reduces the usage of number of components as compared with conventional method. It also ensures higher utilization of switches used for its operation. A two output full bridge series resonant inverter is simulated and implemented. The Experimental results are compared with the simulation results.

scholarly journals Optimal Energy Characteristics and Working Parametries of RF Switch Mode Power Amplifier Based on Controllable Current Fed Resonant Inverter

2020 ◽  
Vol 6 (1) ◽  
pp. 43-49
Author(s):  
A. Ganbayev ◽  
V. Filin
Keyword(s):  
Control Method ◽  
Operating Frequency ◽  
Maximum Efficiency ◽  
Power Losses ◽  
Rf Switch ◽  
Energy Characteristics ◽  
Resonant Inverter ◽  
Switching Losses ◽  
Switch Mode ◽  
Optimal Excitation

This article represents us the method for power losses minimizing in transistors of a radio frequency key gen-erator (power amplifying) based on the control method application with overlapping pulses. We see fully formed requirements for the optimal excitation mode, providing maximum efficiency and maximum operating frequency, taking into account the finite times of switching on and off the generator GaN transistors. The article shows the obtained analytical equations for calculating power in a load, loss of efficiency, as well as equations for estimating the maximum operating frequency of the generator depending on the permissible level of losses. The article presents graphics of curves that determine the maximum operating frequency of an RF generator for permissible switching losses on various types of GaN transistors.

Frequency Stabilization and EMI Noise Reduction of COT Method Ripple-Controlled Switching Converters with Output Voltage Ripple Cancellation

2020 ◽  
Vol 38 ◽  
pp. 130-142
Author(s):  
Yasunori Kobori ◽  
Yi Fei Sun ◽  
Minh Tri Tran ◽  
Anna Kuwana ◽  
Haruo Kobayashi
Keyword(s):  
Pulse Width ◽  
Output Voltage ◽  
Peak Level ◽  
Operating Frequency ◽  
Duty Ratio ◽  
Switching Converters ◽  
Clock Frequency ◽  
Voltage Ripple ◽  
Ripple Cancellation ◽  
Emi Reduction

This paper proposes a new EMI reduction and automatic ripple cancellation technique about the ripple-controlled converter with the ripple injection and Constant-On Time (COT) method. The ripple-controlled converters have no stable clock and it is difficult to reduce the EMI noise by shaking the operating frequency. The new method of EMI reduction is that the COT pulse width is modulated by the triangular signal so that the operating frequency is modulated and the spectrum peak level of the clock frequency is greatly reduced. But the output voltage ripple is much increased because of the change of the duty ratio of the operating frequency. The increaced ripple is canceled by adding the modulation signal to the ripple injection circuit. Moreover stabiliztion of the operating frequency on Discontinuous Conduction Mode (DCM) is reported. The operating frequency falls down on DCM mode in the COT converters. To stabilize the operating frequency, cheking the operating period is fedback to control the COT pulse width

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