Air force high voltage power supplies require sophisticated electronics design, packaging, and electrical insulation to achieve the dense packaging. High efficiency 400w acdc power supply reference design. The max5003 highvoltage switching powersupply controller has all the features and building blocks needed for a costeffective flyback and forward voltagemode control converter. Electronic systems run on power supplied from sources with higher voltages than the circuitry uses. Pmp11064 is a highefficiency acdc power supply reference design with universal ac input and 20v20a output. High dc voltage is commonly used for the testing purposes and research work as the necessity of the high dc power is required 12 3.
Winding needs to physically fit in the core and bobbin window iterative design process. For most applications the output ripple produced by these circuits is too high. Table 2 shows the testing methods that should be used to check out the hv power. John erringtons tutorial on power supply design how to design and build a linear dc power supply background.
The output voltage rating of a power supply operating in the constant current mode analogous to the output current rating of a supply operating in the constant voltage mode. Transformer designer for isolated highvoltage power design create a complete isolated highvoltage power design including the design of a transformer surinder p. High voltage power supply design and manufacturing practices figure 1. Pdf simulation, design and construction of high voltage dc. Based on the other applications for the fuel cell energy.
Solid state high voltage power supply is perfect for high voltage experiments, like kirlian photography. Thus, a significant effort has been devoted to the design of suitable capacitor charging power supplies for these applications. In that volume are details on insulations, selection and application, packaging, and design details, with emphasis on manufacturing. Simply put, designing a power supply is a major undertaking. A key element of these compact pulsed power systems is the high voltage power supply that typically charges a capacitive storage element. Schematics and pcb layout of the high voltage power supply. This study describes the details of high voltage dc power supply whose output voltage is 15 kv. Karpov nextube the english variant is edited by alex shekhter in article the availability of a semiconductor regulator for a feed of the tube amplifiers is considered. They also establish a new topology structure and the charging control strategy. Acdc switch mode power supply design guide fairchild is the only semiconductor supplier that provides a complete portfolio for acdc switch mode power supplies. The power supplies are primarily intended for use with desktop system designs. The bill of material is available in the repository as a separate file. If a filter capacitor is added after the rectifier diodes the output voltage waveform is improved considerably.
Advanced energys hitek power and ultravolt product lines feature hundreds of units, options, and accessories to meet your application needs. This hv power source may be used in a variety of different high voltage applications. Accelerating design with tools for high voltage gerold. However, for some applications driving small motors or lamps, for example they are satisfactory.
Whether you are an experienced power supply designer, designing your first switching power supply or responsible for a make or buy decision for power supplies, the variety of information in the switch. Trends in power supply design battery multiple devices one power supply multiple devices multiple. Constant current power supply a regulated power supply that acts to maintain its output current constant in spite of changes in load, line, temperature, etc. Power is defined as voltagecurrent the current within. Finally, add a voltage regulator to regulate the output voltage i.
This power supply outputs one adjustable voltage, which is indicated by the one set of banana jack terminals. This is provided by vbs when vs is pulled to a higher voltage by the highside switch, the vbs supply floats and the bootstrap diode reverses bias and blocks the rail voltage the lowside switch is turned off and highside switch is turned on from the ic supply voltage, vdd. This high voltage power supply has been designed to output a fixed voltage of around 50kv, it could easily be converted to an adjustable supply by connecting a variac in case of using transformers or by adding some extra circuitry to regulate the power going in. Next, send the low voltage ac through a rectifier to make it dc and use a capacitor to smooth out the ripples in the dc. Lowvoltage power circuit breakersfault calculations. The design is based on a pushpull topology utilizing power mosfet switches, a custom centertapped transformer, and an allanalog feedback control system. Interleaved transition mode pfc and llc series resonant converter is applied for 20v20a main power. This reference manual contains useful background information on switching power. However, since some of our physics experiments require one or the other polarity, we build our cockroftwalton multipliers with an extra capacitor so that we can make. In this paper, the authers present a new highfrequency transformer for highvoltage capacitor charging power supply. And of those three things, they all really boil down to over temperature, because over voltage usually causes a high amount of current to flow, and negative voltage usually causes current to flow.
Knowledge of magnetics required to design the power supply physical design constraints. Table 1 summarizes the specifications of the power supply. This document provides design suggestions for various power supply form factors. Hardware design guideline power supply and voltage measurement introduction this document provides useful hints and suggestions about the implementation of the stmicroelectronics 32bit microcontroller devices in an automotive system. Efficiencies above 90% are commonplace in ac power supplies with products peaking as high as 95%. Power supply design guide for desktop platform form factors. Thus, for a change in load resistance, the output voltage of this type of supply remains constant while the output current changes by whatever amount necessary to accomplish this. In these basic configurations the peak voltage across the load is equal to the peak value of the ac. It is the intent of the report to supply good design and manufacturing techniques for the packaging and the building of high quality, reliable, longlife power supplies.
This device can be used to design both isolated and nonisolated power supplies with multiple output voltages that operate from a wide range of voltage sources. The design comprised the frontend of a dcac sinewave. Introduction the emergence of fast switching wbg devices has dramatically enhanced power density in a range of power conversion circuits such as active rectifiers, llc bridges, phase shifted full bridges. The circuit diagram of power part of highvoltage source is. This explain the detail description of the simulation, design, development and implementation of the hardware work to build a high. How to design highvoltage, wideinput power supplies. The output can be regulated using the variable resistor on the outside of the. In the 1990s i was asked to design and build a power supply to provide a variable voltage dc power supply that would provide variable voltages at currents of up to 5 amps, for experiments in a solid state physics lab at northumbria university. In automotive engineering, high voltage is defined as voltage in range 30 to vac or 60 to 1500 vdc. There are two pfc stages in this design, 750w output power generates from one of the pfc stages and 550w output power generates from the other pfc stage. Final design the complete dc power supply design in figure 5 combines the full wave rectifier and the lm317 regulator.
Welcome to part 11 of the power induced design power supply design series, topologies and fundamentals, brought to you by power electronics news. The first tab lists the components required to assemble the main pcb of the high voltage power. Mode power supply reference manual should prove useful. A constant output voltage is required in many power supply applications, but the voltage provided by many energy sources will vary with changes in load impedance. The accelerating voltage for a television cathode ray tube may be described as extrahigh voltage or extrahigh tension eht, compared to other voltage supplies within the equipment. Design and development of 500 kv, 100 ma dc high voltage power. The result was an engineering system designed to handle just about any high voltage situation imaginable. Power supplies have rapidly progressed from simple linear. The dcdc boost converter power supply design tutorial. To make a simple linear power supply, use a transformer to step down the 120vac to a lower voltage.
Figures 1 and 2 show the simplest rectifier circuits. Mechanical design with optimum heat conduction path to. Pdf a new transformer for high voltage charging power supply. Design i set out to build a generalpurpose power supply for tube projects of moderate size. Antoniazzi in mainssupplied electronic systems the ac input votlage must be converted ni to a dc voltage wthi the right value and degree of stabilization. Generic high voltage power supplies hvps electric rocket. Trust a high voltage power supply provider with 40plus combined years of experience. Pdf this paper describes the design and analysis of a 42kw 14 kv, 3 a high voltage power supply for a 30kw industrial magnetron drive.
Volume 11 is a high voltage design guide for airborne equipment, which is applicable to groundbased equipmnent. Furthermore, when an unregulated dc power supply is the energy source, its output voltage will also vary with changing input voltage. High voltage power supply fabrication figure 2 illustrates the special construction methods used in the hv compartment for the equipment to operate in the thermal and vacuum environment of space. Design a simple dc power supply joshua dubois april 3, 2009 ece 480 team 6 borgwarner fan clutch. A regulated power supply that acts to maintain its output voltage constant in spite of changes in load, line, temperature, etc. Hardware design guideline power supply and voltage. Voltage regulators use feedback to reduce source impedance. This set up would not be good in a battery application but if the application can be plugged into the wall this set up can save a lot of. Pdf on jan 1, 2015, nader barsoum and others published design of high voltage low power supply device find, read and cite all the. The results of comparative testing of two types of highvoltage power supplies. It should not be inferred that all power supplies must conform exactly to the content of this document, though there are key parameters that define mechanical fit across a.
When going about choosing a power topology, first nail down the required specs and then decide on. Products range from 750w 1u half racks to 15kw 3u full racks. Requires multiple iterations to meet the electrical and physical constraints. Design and application of a highfrequency highvoltage generator matthias birle, carsten leu and stefan bauer ilmenau university of technology, centre for electrical power engineering, research group of high voltage technology, germany email.
Pdf design of a single phase high voltage dc power. Transformer designer for isolated high voltage power design. Pmp10948 is a highefficiency, high power factor acdc power supply reference design using ucc28063 interleaved transitionmode pfc controllers. The power supply is designed to provide large output voltages dc, at low currents. The basic underlying principle is the ability to carry very high voltage with a thin layer of hvpf material. This type of supply ranges from 5 kv to about 30 kv. The transformer is generally the energyconversion element in a highvoltage design, which also provides isolation between the primary and secondary. Whether your design is 1w or 1200w, fairchilds solutions help achieve increased efficiency, reduce standby power, and support the industrys 1w initiatives. This paper describes the design and implementations of a single phase high voltage dc power supply at 15 kv output. Good power supplies support a range of output current from vout while holding the output voltage constant.
In a resistorbased design, if there is any load current then the voltage drop across z 1 will increase and vout will correspondingly decrease, which is undesirable. The ac voltage is rectified to an unregulated dc voltage, with the series transistor and the regulator. Transformerless power supply design designer circuits. This project involved the design of a highvoltage dcdc converter capable of converting 12vdc into 170vdc and delivering 250w of power. This design generates bipolar programmable high voltage hv up to 80 v from a very low voltage source. Designing and building high voltage power supplies. Power supply design notes mci transformer corporation. Using a high voltage to make a low voltage a wellknown method of generating a low voltage from a high voltage is to use a voltage divider circuit, as shown in figure 2. Pdf this paper describes the design and analysis of a 42kw 14 kv, 3 a highvoltage power supply for a 30kw industrial magnetron drive.
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