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Zilano Design for "Reverse Tesla Coil" Free Energy Generator
Zilano Design for "Reverse Tesla Coil" Free Energy Generator Summary Document A for Beginners by Vrand Thank you Zilano for sharing your very interesting design and we all wish you the very best, keep up the good work! Energetic Forum http://www.energeticforum.com/renewable-energy/ This is a short document describing the work of Zilano as posted on the Don Smith Devices thread at the Energetic Forum so that other researchers can experiment and build their own working free energy generator to power their homes. Zilano stated that this design was based on the combination works of Don Smith, Tesla, Dynatron, Kapanadze and others. Design Summary Key points : - "Reverse Tesla Coil" (in this document) - Conversion of high frequency AC (35kHz) to 50-60Hz (not in this document) "Reverse Tesla Coil" is where the spark gap pulsed DC voltage from a 4000 volt (4kv) 30 kHz NST (neon sign transformer) goes into an air coil primary P of high inductance (80 turns thin wire) that then "steps down" the voltage to 240 volts AC a low inductance Secondary coil centered over the primary coil (5 turns bifilar, center tap, thick wire) with high amperage output. The high frequency (35kHz) AC output can then power loads (light bulbs) or can be rectified to DC to power DC loads. Copper coated welding rods can be inserted into the air coil to increase the inductance of the air coil primary that then increases the output amperage from the secondary coil to the loads. See the below diagram 1 : Parts List - NST 4KV 20-35KHZ - D1 high voltage diode - SG1 SG2 spark gaps - C1 primary tuning HV capacitor - P Primary of air coil, on 2" PVC tube, 80 turns of 6mm wire - S Secondary 3" coil over primary coil, 5 turns bifilar (5 turns CW & 5 turns CCW) of thick wire (up to 16mm) with center tap to ground. -
Electricity Today Issue 4 Volume 17, 2005
ET_4_2005 6/3/05 10:41 AM Page 1 A look at the upcoming PES IEEE General Meeting see page 5 ISSUE 4 Volume 17, 2005 INFORMATION TECHNOLOGIES: Protection & Performance and Transformer Maintenance PUBLICATION MAIL AGREEMENT # 40051146 Electrical Buyer’s Guides, Forums, On-Line Magazines, Industry News, Job Postings, www.electricityforum.com Electrical Store, Industry Links ET_4_2005 6/3/05 10:41 AM Page 2 CONNECTINGCONNECTING ...PROTECTING...PROTECTING ® ® ® HTJC, Hi-Temperature Joint Compound With a unique synthetic compound for "gritted" and "non-gritted" specifications, the HTJC high temperature "AA" Oxidation Inhibitor improves thermal and electrical junction performance for all connections: • Compression Lugs and Splices for Distribution and Transmission • Tees, Taps and Stirrups on any conductor • Pad to Pad Underground, Substation and Overhead connections For oxidation protection of ACSS class and other connector surfaces in any environment (-40 oC to +250 oC), visit the Anderson ® / Fargo ® connectors catalogue section of our website www.HubbellPowerSystems.ca Anderson® and Fargo® offer the widest selection of high performance inhibitor compounds: Hubbell Canada LP, Power Systems TM ® ® 870 Brock Road South Inhibox , Fargolene , Versa-Seal Pickering, ON L1W 1Z8 Phone (905) 839-1138 • Fax: (905) 831-6353 www.HubbellPowerSystems.ca POWER SYSTEMS ET_4_2005 6/3/05 10:41 AM Page 3 in this issue Publisher/Executive Editor Randolph W. Hurst [email protected] SPECIAL PREVIEW Associate Publisher/Advertising Sales 5 IEEE PES General Meeting has -
Flux-Balance Control for LLC Resonant Converters with Center-Tapped Transformers
energies Article Flux-Balance Control for LLC Resonant Converters with Center-Tapped Transformers Yuan-Chih Lin, Ding-Tang Chen and Ching-Jan Chen * Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan; No. 1, Sec. 4, Roosevelt Rd., Taipei 10617, Taiwan * Correspondence: [email protected]; Tel.: +886-2-3366-3366 (ext. 348) Received: 9 July 2019; Accepted: 19 August 2019; Published: 21 August 2019 Abstract: LLC resonant converters with center-tapped transformers are widely used. However, these converters suffer from a flux walking issue, which causes a larger output ripple and possible transformer saturation. In this paper, a flux-balance control strategy is proposed for resolving the flux walking issue. First, the DC magnetizing current generated due to the mismatched secondary-side leakage inductances, and its effects on the voltage gain are analyzed. From the analysis, the flux-balance control strategy, which is based on the original output-voltage control loop, is proposed. Since the DC magnetizing current is not easily measured, a current sensing strategy with a current estimator is proposed, which only requires one current sensor and is easy to estimate the DC magnetizing current. Finally, a simulation scheme and a hardware prototype with rated output power 200 W, input voltage 380 V, and output voltage 20 V is constructed for verification. The simulation and experimental results show that the proposed control strategy effectively reduces the DC magnetizing current and output voltage ripple at mismatched condition. Keywords: LLC resonant converter; center-tapped transformer; flux walking; flux-balance control loop; magnetizing current estimation 1. Introduction The LLC resonant converter is widely used in many different applications such as onboard chargers, server power systems, laptops, desktops, photovoltaic regeneration systems. -
Published Articles Balun Modeling for Differential Amplifiers
Proceedings of the World Congress on Engineering and Computer Science 2019 WCECS 2019, October 22-24, 2019, San Francisco, USA Balun Modeling for Differential Amplifiers Kun Chen, Zheng Liu, Xuelin Hong, Ruinan Chang, and Weimin Sun Abstract—This work proposes an improved lumped element model. Particular for this core is an additional element which model for accurately characterizing transformer based baluns. will be shown later to play a critical role in modeling The model can accurately describe balun behaviors for both common mode behavior. Section III will derive the formulae differential and common modes. Lumped elements extraction from Y parameter is presented, and the relationship between for extracting the model elements from the Y parameter. In the proposed model and the classic compact transformer model Section IV, the differential, common and divider modes will is derived. Numerical results will be presented to validate the be analyzed separately, where we will justify the addition of accuracy of the proposed model. the extra element in the transformer core. Section V will Index Terms—balun modeling, transformer modeling, push- discuss the relationship of the proposed transformer core pull amplifiers, power amplifier (PA), compact model, differen- model with the popular compact model that is based on ideal tial mode, common mode, mutual inductance. transformers and leakage and magnitization inductances. Section VI will discuss the physics and modeling of the I. INTRODUCTION common mode mutual inductance. And in Section VII, some RANSFORMERS are important passive components straight-forward adaptations of the transformer core for more T which have various applications such as broadband accurate modeling of actual transformer baluns, followed by impedance matching, power combining and dividing. -
Type VRLTC™ Load Tap Changer
Technical guide Type VRLTC™ load tap changer Table of contents 2 General information 4 Switching sequences 6 Tank characteristics 6 Terminal board 7 Tap selector 7 Stationary contacts 7 Reversing switch or change over selector 8 Drive shaft 8 By-pass switch and vacuum interrupter mechanism 10 Current detector module 11 Motor drive enclosure 12 Digital servo motor system 13 Decision making and monitoring 14 Maintenance and inspection features 14 Service recommendations 15 Mechanical components 15 Electrical engineering information 16 Type tests 17 Notes Technical guide | VRLTC load tap changer 01 General information ABB designed, developed and will manufacture the type VRLTC The drive motor is a digitally controlled servo motor which load tap changer (LTC) at its facility in Alamo, Tennessee. The precisely responds to the commands from the digital drive. LTC meets all of the required specifications according to IEEE Cam switches and electromechanical relays are not used in this C57.131 and IEC 60214. The LTC is an on-tank, vacuum tap changer. The entire system is monitored and controlled reactance type suitable for either automatic or manual control. by the Tap Logic Monitoring System (TLMS™) mounted in the motor compartment. Three major components make up the LTC: the tap changing components, the driving components, and the decision making/ The components of the tap changing circuit are: monitoring components. The tap changing components are — The preventive autotransformer - a separate device mounted contained in an oil-filled steel tank. The transformer’s tap leads inside the transformer which provides the switching impedance and preventive autotransformer (PA or switching reactor) leads — The tap changing module - consists of the tap selector and are connected to the back of the LTC terminal board. -
Wireless Interconnect Using Inductive Coupling in 3D-Ics by Sang Wook
Wireless Interconnect using Inductive Coupling in 3D-ICs by Sang Wook Han A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy (Electrical Engineering) in The University of Michigan 2012 Doctoral Committee: Assistant Professor David D. Wentzloff, Chair Professor David Blaauw Professor Karl Grosh Professor John Patrick Hayes TABLE OF CONTENTS LIST OF FIGURES ...................................................................................................... iv LIST OF TABLES ...................................................................................................... viii LIST OF APPENDICES ............................................................................................... ix Chapter I. Introduction ............................................................................................... 1 I.1 3DIC ................................................................................................................. 4 I.2 Through-Silicon-Vias ....................................................................................... 7 I.3 Capacitive Coupling ......................................................................................... 8 I.4 Inductive Coupling ......................................................................................... 10 I.4.1 ... Inductive Data Link ................................................................................. 12 I.4.2 ... Inductive Power Link ............................................................................. -
Reliability Information Analysis Center (RIAC) Electronic Parts Reliability Data (EPRD) Part Category Descriptors
Reliability Information Analysis Center (RIAC) Electronic Parts Reliability Data (EPRD) Part Category Descriptors The following pages contain the descriptors of all part categories covered by the 4-Volume RIAC Publication “Electronic Parts Reliability Data”, Catalog No. EPRD-2014. -
Unit V Rectifiers, Block Oscillators and Timebase
RECTIFIERS • A rectifier is an electrical device that converts AC supply into unidirectional DC supply. • This process of converting alternating current (AC) to direct current (DC) is also called as rectification. • These bridge rectifiers are available in different packages as modules ranging from few amperes to several hundred amperes. • Mostly in bridge rectifier circuits, semiconductor diode is used for converting AC since it allows the current flow in one direction only (Unidirectional device) Half Wave Rectifier •It is a simple type of rectifier made with single diode which is connected in series with load. • For small power levels this type of rectifier circuit is commonly used. •During the positive half of the AC input, diode becomes forward biased and currents starts flowing through it. •During the negative half of the AC input, diode becomes reverse biased and current stops flowing through it. •Because of high ripple content in the output, this type of rectifier is seldom used with pure resistive load. • The output DC voltage of a half wave rectifier can be calculated with the following two ideal equations Advantage •Simple circuit and low cost Disadvantage •The output current in the load contains, in addition to dc component, ac components of basic frequency equal to that of the input voltage frequency. •Ripple factor is high and an elaborate filtering is, therefore, required to give steady dc output. •The power output and, therefore, rectification efficiency is quite low. This is due to the fact that power is delivered only half the time. •Transformer Utilization Factor (TUF) is low. •DC saturation of transformer core resulting in magnetizing current and hysteresis losses and generation of harmonics. -
Solid State Tesla Coils Page 1 of 14
Solid State Tesla Coils Page 1 of 14 Solid State Tesla Coils How to Make Them, How They Work! Last updated 7/5/2005 Table of Contents: Preliminary cautions, notes, warnings, etc. Theory - Low Impedance Primary Feed (a good way) Theory - High Impedance Primary Feed (usually not so good) Theory - End Feed Without a Primary (can be good!) Theory - Energy Storage in the Primary (probably so-so at best) Dipole Vs. Monopole Coils (mainly monopoles discussed in this file) Actual Circuits - Low Impedance Primary Feed Actual Circuits - End Feed Design Example (untested) - Energy Storage in the Primary Helpful hints for building solid state Tesla coils! My Tesla coil top page and links to the Tesla coil web ring Preliminary Cautions, Notes, Warnings, etc. 1. The subject matter in this file assumes you already have some electronic project knowledge and skills. You ought to have some skills in building things, as well as electronic knowledge to the point of knowing simple AC circuit analysis, series and parallel resonant circuits, some amplifier and oscillator theory, and a bit of radio stuff. I hope you know what Armstrong, Hartley and Colpitts oscilators are and how they work. If not, you may still be able to build the stuff mentioned below and burn your house down, but knowing how the stuff below works will help if you don't quite get things working. This is not the place to learn the basics of electronics - spend a week or two reading library books if you have to. 2. Things may not work right the first time. -
Failure Analysis of a Power Transformer Using Dissolved Gas Analysis – a Case Study
IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308 FAILURE ANALYSIS OF A POWER TRANSFORMER USING DISSOLVED GAS ANALYSIS – A CASE STUDY Ankush Chander1 Nishant2 1M. Tech Scholar, EEE Department Arni University Indora Himachal Pradesh, India 2Assistant Professor, EEE Department, Arni University Indora Himachal Pradesh, India Abstract Reliable and continued performance of power Transformer is the key to profitable generation and transmission of electric power. Failure of a large power transformer not only results in the loss of very expensive equipment, but it can cause significant guarantied damage as well. Replacement of that transformer can take up to a year if the failure is not disastrous and can result in tremendous revenue losses and fines. A Power Transformer in operation is subjected to various stresses like thermal stress and electrical stress, resulting in liberation of gases from the hydrocarbon mineral oil which is used as insulant and coolant. Dissolved Gas Analysis is a technique used to assess incipient faults of the transformer by analyzing specific dissolved gas concentrations arising from the deterioration of the transformer. DGA is used not only as a diagnostic tool but also to track apparatus failure. In this case study the fault and defects that occurred in 400kV/220kV/132kV/66kV Sub Station can be found by DGA. Keywords: Power Transformer, Dissolved Gas Analysis, ----------------------------------------------------------------------***---------------------------------------------------------------------- 1. INTRODUCTION Table 2.1 Failure Mode of Transformer A power transformer is one of the most important and costly Description Failures Duration devices in electrical systems. Its importance is attributed No % TTF ATF directly to the continuity of power supply, since its loss through failure or defect means a supply stoppage. -
Passive Devices for Communication Integrated Circuits
Berkeley Passive Devices for Communication Integrated Circuits Prof. Ali M. Niknejad U.C. Berkeley Copyright c 2014 by Ali M. Niknejad Niknejad Advanced IC's for Comm Outline Part I: Motivation Part II: Inductors Part III: Transformers Part IV: E/M Coupling Part V: mm-Wave Passives (if time permits) Niknejad Advanced IC's for Comm Motivation Why am [are] I [you] here? Niknejad Advanced IC's for Comm Passive Devices Equally important as active devices at RF/microwave frequencies Quality factor of resonators determines phase noise (key spec for high data rate communication) Transistor requires matching in order to obtain Maximum gain Low noise High power Lack of \ground plane" in CMOS requires careful design of return paths and AC bypass capacitors Niknejad Advanced IC's for Comm Innovations in IC?s VDD V +V − out out + Vin +Vin Vin +Vin Vin +Vin Vin +Vin VDD Vout VDD − − − − − VDD Some of the best ideas in the past 10 years have come from custom passive devices which were not in the \library" Examples: DAT, tapered resonator, artificial dielectric transmission lines (slow wave and meta-material structures) Ref: [Aoki] Niknejad Advanced IC's for Comm Why should \designers" be involved? They know their circuits best and can make the best decisions. There are many solutions to a give problem with competing trade-offs. Without knowing the trade-offs, it's hard to make a decision in a vacuum. The designer should be aware of the layout of the passive elements to be sure that \what you see is what you get". -
Review of Power Improvement on Wireless Power Transfer
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331, Volume 14, Issue 6 Ser. I (Nov. – Dec. 2019), PP 38-41 www.iosrjournals.org Review of Power Improvement on Wireless Power Transfer A.H. Butar-Butar1,2, J. H. Leong2, M. Irwanto2,3 1Department of Electrical Engineering, Medan State University, Medan, Indonesia 2Fellow of Center of Renewable Energy, School of Electrical System Engineering, Universiti Malaysia Perlis (UniMAP), Perlis, Malaysia 3Departement of Electrical Engineering, Institut Teknologi Medan (ITM), Medan, Indonesia Abstract: The wireless power transfer (WPT) is a concept to transfer power from the transmitter side to the receiver side using an electromagnetic principle. The transmitted power is low because it does not use wire. Four concepts can be applied to improve the power on the receiver side of WPT system. They are the first is a WPT using relay coil, the second concept is the WPT using single input multi output (SIMO), the third concept is the WPT using multi input single output (MISO) and the last is the WPT using multi input multi output (MIMO). This paper reviews the four concept for improving power of WPT system. Keywords – power improvement, wireless power transfer, relay resonant, SISO, SIMO, MISO, MIMO ----------------------------------------------------------------------------------------------------------------------------- ---------- Date of Submission: 16-11-2019 Date of Acceptance: 02-12-2019 ----------------------------------------------------------------------------------------------------------------------------- ---------- I. Introduction The wireless power transfer (WPT) transfers AC electrical energy from the transmitter coil to the receiver coil. If the AC voltage source is as main energy source of the WPT and it has fix frequency, thus the LC tank (suitable of connection and values of capacitor and inductor of transmitter and receiver coil) should has same frequency of the AC voltage source.