A practical introduction to digital power supply control laszlo balogh abstract the quest for increased integration, more features, and added flexibility all under constant cost pressure continually motivates the exploration of new avenues in power management. Digital control techniques for dcdc power converters. Dse digitally controlled ferroresonant ups single phase industrial uninterruptible power supply system dse digitally controlled ferroresonant industrial uninterruptible power supply system single phase 350 kva the dse ups from ametek solidstate controls combines the best of both worlds the reliability and robust design of a ferroresonant ups the digital control and communications. Useful where simultaneous turnup, turndown or proportional control of all power supplies in a system is required. It is controlled by mpu microsystem and can display voltage, current and power at the same time. In this version a numbers of modifications were made to softwarehardware to produce a more advanced design. Digital pulsewidth modulation control in power electronic. A fully digitally controlled power supply unit for wireless remote controlled led lighting systems. Digitallycontrolled driving power supply for dualactive. Digital control will provide the solution to systemmodule communication for the dc power supply.
This makes the efficient digitally controlled regulated power bench power supply important equipment in the supply of a variable voltage ranging from 0v to. Digitally controlled power unlike traditional power supply designs, the corsair ax1600i use a digital signal processor dsp for optimized efficiency and tighter voltage regulation, which improves overall system stability and component reliability. A digitally controlled dual tracking power supply use. Designing a tms320f280x based digitally controlled. Building a digitally controlled bench power supply using an avr. There is no question that a programmable dc bench power supply can be a very useful thing to have around. Digital control concepts for power supply engineers robert v. This book aims to explain the various dcdc circuits and topologies available so that users can better understand the advantages, limitations and operational boundaries.
Intelligent power supply design solutions 3 whole product solution. Variable 012v, digitally controlled, power supply using a. The digitally controlled potentiometers are implemented with. So far, analog power supplies have miraculously, and unexpectedly, been able to escape the misery. Download whitepaper 10 ways to speed design for digitally controlled power converters with simulink. This reference manual contains useful background information on switching power. Working of variable power supply with digital control elprocus. Shamim choudhury digital power, c2000 dsp and system power management.
The inverting gain is adjustable using a 3bit digital input to select gains of 0, 1, 2, 5, 10, 20, 50 and 100vv in the ltc69101. This is an update to a recent post on a subject of building a digitally controlled power supply. Ka series multiple channel dc power supplies user manual digital control and programmable dc power supply shenzhen korad technology co. We tested the supply and controller so that you can grab your old laptop wall wart output voltage between 14 and 20v, connect it to the supplys v.
High performance low cost digitally controlled power. Maxims digital power solutions are supported with documentation, evaluation kits, eesim design support, and the powertool software. First, a direct digital synthesis technology was adopted to generate two sine signals with an adjustable frequency and a phase difference. To be able to communicate with computer, which could set the output voltage and to be able to control the device. Digital control of highfrequency switchedmode power converters. Mode power supply reference manual should prove useful.
Design of digitally controlled switch ed mode power supply. Digital control of highfrequency switchedmode power. Building a digitally controlled bench power supply using an. We tested the supply and controller so that you can grab your old laptop wall wart output voltage between 14 and 20v, connect it to the supply. Digitally controlled power supply 2 microcontroller.
We tested the supply and controller so that you can grab your old laptop wall wart output voltage between 14 and 20v, connect it to the supply s v. Digital control and programmable dc power supply models. It generates clock pulses when switch s2 is pressed. Analysis and implementation of digital control architectures. Digitally controlled power supply asx series matsusada. Our high perfomance digitally programmable regulators range from devices that offer simple adjustment of output voltage via a serial interface, to cpu core power applications controlled. This dual 60v3a tracking power supply satisfies most of my needs. Dec 12, 1995 a digitally controlled switchmode power supply by the use of a pulse width modulated pwm controlled field effect transistor, switches an inductor between input and output sides to provide a controllable dc output voltage.
Dual digitally controlled potentiometers xdcp low noise. Nov 24, 20 power supply is one of those things one can never have too many of. This article describes a rather nice solution for building a current and voltage controlled benchtop power supply using a dc supply in the range of 2030 volts and some additional downregulation circuitry, with current and voltage control. Digital control strategies for switchmode power supply. Download digital control of high frequency switched mode power converters or read online books in pdf, epub, tuebl, and mobi format. This paper describes an 80kw power supply for such an application.
A power supply can be given from the battery or from a hardware circuitry which converts the ac supply into the dc supply. After a normal connection, there will be a beep from the power supply itself. 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. A practical introduction to digital power supply control. The asx series is a high stability power supply with ultra low noise of 1mvpp at output voltage of 3 kv. Digital power electronics and applications 1st edition.
A digitally controlled dual tracking power supply testing i. Digital control of highfrequency switchedmode power converters ieee press series on power. Analog and digital will soon battle for control of power supply regulation. Full digitally controlled power supply design olivier monnier ti business development manager, c2000 dsp controllers. Pdf a fully digitally controlled power supply unit for. An open collector comparator provides a digital signal to the control switching transistor for precise control of the switching action of the power switching transistor. Nemiclambda power supply, buy various high quality nemiclambda power supply products from global nemiclambda power supply suppliers. Digitallycontrolled singlephase singlestage acdc pwm converter. I found a used industrial model on ebay several years ago, 060 vdc, 06 amps. Us4891740a dc power supply with digitally controlled.
Digitally controlled power supply design with continuously. A good, reliable and easy to use bench power supply unit is probably the most important and most used device in every electronic lab. Digital control is well recognized for its communication ability. Digital pulsewidth modulation control in power electronic circuits. The device consists of a resistor array, wiper switches, a control section, and nonvolatile memory. Variable power supply with digital control full circuit. In order to supply them, an interface must be included between the threephase main line and the required high dc voltage of tens of kilovolts. A digital dc power supply programmable bench power supply unit abstract. Evlstnrg1kw 1 kw smps digitally controlled multiphase interleaved converter using stnrg388a, evlstnrg1kw, stmicroelectronics. A power supply can be given from the battery or from a hardware circuitry which converts the ac supply into the dc supply or stepdown ac to stepup ac and viceversa. Autotracking power supply system carryover time the period of time that a power supply s output will remain within specifications after loss of ac input power. Us4891740a dc power supply with digitally controlled power. Working of variable power supply with digital control a power supply is a hardware component that supplies power to an electrical device.
Sanders electrical engineering and computer sciences. The advantages and disadvantages between analog and digital controllers in switched. Programmable dc power supply, 030 v 010 a variable. Theory and applications angel vladimirov peterchev seth r. Click download or read online button to get digital control of high frequency switched mode power converters book now. Passing digital values from users gui directly to a digital control. Analog devices offers a broad line of digitally programmable regulators that offer output voltages that are onthefly adjustable via a digital interface.
Digitally controlled envelope tracking power supply for an rf power amplifier. Multiple channel digital control and programmable dc power. Ka3000 series user manual multiple channel digital control and programmable dc power supply user manual shenzhen korad technology co. Design of digitally controlled switch ed mode power supply for low power high frequency application soumya p maharajanvar 2, shubha rao k 2, and dr. Pdf electrostatic precipitators esps are devices used in industry to eliminate polluting particles in gases. Digitally controlled ferroresonant ups single phase.
The ltc6903 ltc6904 require no external components other than a power supply bypass capacitor, and they operate over a single wide supply range of 2. Digitally controlled bench power supply, 030vdc, 05a. Aug 21, 1984 a high power factor ac to dc power supply having a high frequency pulse producing circuit comprising an inductor supplied with rectified raw ac power through a semiconductor switch which provides dynamic power factor correction by maintaining the width of the ontimes of the switch substantially constant throughout each cycle of the input ac power. Digitally controlled resistance circuit arduino all about. A stepbystep primer on digital powersupply design electronic. The system takes as an example the digital control techniques associated in the dcdc converters domain. Any analogue power supply can be controlled digitally as long as the designer has access to the feedback pin. Digitally controlled switchmode power supply adept power. Digital control adapter 3 digital control adapter data sheet revised 1. 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.
The multiple sampling approach is analysed theoretically and experimentally validated, confirming its effectiveness in pushing the dynamic performances of a digitally controlled power supply. The dominance of analog control at the modular level limits systemmodule communications. Intelligent power supply design solutions 3 whole product solution power supply design integration levels microchip delivers everything a power conversion design engineer needs. Pdf dc power supplies, applications and measurements.
A digital dc power supply programmable bench power supply unit. Variable 012v, digitally controlled, power supply using a laptop. Pdf design and development of intelligent variable power supply. Dual digitally controlled potentiometers xdcp low noise, low power, i2c bus, 128taps datasheet the isl22326 integrates two digitally controlled potentiometers xdcp and nonvolatile memory on a monolithic cmos integrated circuit. Oct 26, 2017 a stepbystep primer on digital powersupply design. Digitally controlled envelope tracking power supply for. Jul 29, 2015 in my previous post, i showed my design of a dual tracking 30v linear power supply.
How to use the 3 terminals of a lab power supply split supply duration. Ltc6903ltc6904 1khz 68mhz serial port programmable. The introduction describes the basic principle of power supplies and their division. Spraab3july 2005 designing a tms320f280x based digitally controlled dcdc switching power supply 1. The goal of this instructable is to make a functional, ardunio digitally controlled, power supply.
A proper electronically stabilized bench power supply. Designing a tms320f280x based digitally controlled dcdc. Digitally controlled ccfl backlight power supplies smbus controlled ccfl supply provides bright, flickerfree operation and protects lamps. A discontinuous, freerunning flyback power supply with precise, predictable switching control is provided. In this paper, we present a study of the opportunities and constraints of digital control in power supplies. Then, a ttype resistor network was applied to regulate the voltage. Different softstart profiles and current limits can be programmed to suit the application. Digital control of power supplies the input filter and protection are responsible to a protect power supply and its loads from disturbances or fault conditions on the electrical utility network. Evlstnrg1kw 1 kw smps digitally controlled multiphase. X9c102 datasheet111 pages intersil digitally controlled. Aug 29, 2018 the objective of this work is to keep davpp in operation with an innovative newly developed digitally controlled driving power supply. Pdf digital control strategies for switchmode power. Digitally controlled average current mode buck converter.
The wiper position is controlled by a 3wire interface. A practical introduction to digital power supply control laszlo balogh abstract the quest for increased integration, more features, and added flexibility all under constant cost pressure continually motivates the exploration of new avenues in power. A digitally controlled switchmode power supply by the use of a pulse width modulated pwm controlled field effect transistor, switches an inductor between input and output sides to provide a controllable dc output voltage. Digital power digitally controlled power stage sw role. V dc power supply with 010v control 85 265 v ac mains 3. Veena s chakravarth i3 1dept of electrical and electronics, bnm institute of technology bsk 2nd stage bangalore70, karnataka, india. Secondly, a robust, lowcomplexity autotuning technique for proportionalintegralderivative pid digital compensators is proposed, investigated in detail and experimentally validated. The pfc converter is an important stage for the distributed power. In this paper a new digital selfoscillating modulator disom is presented enabling the design of a high bandwidth digitally controlled envelope tracking power supply. Users may download and print one copy of any publication from the public portal for the purpose of private.
The most significant improvements are an increased. In order to apply digital control theory to power electronics, the. The ramp clock is also a simple block thats easy to replace digitally. X9110single digitallycontrolled xdcp potentiometerfeatures 1024 resistor taps 10bit resolution spi serial interface for write, read, and transferoperations of the potentiometer datasheet search, datasheets, datasheet search site for electronic components and semiconductors, integrated. Us5475296a digitally controlled switchmode power supply. Digitally controlled programmable gain amplifiers in sot23 the ltc6910 family are low noise digitally programmable gain amplifiers pgas that are easy to use and occupy very little pc board space. The xenon arc lamp lambda ls is designed for the specific use as a always use the grounded power supply cord set provided to connect the system. Page 12 commander control for emitters power supply saunacore figure 16 note. The following slides will introduce you to some of the basic control methods that have been developed for use in smps. Digital control of highfrequency switchedmode power converters ieee press series on power engineering corradini, luca, maksimovic, dragan, mattavelli, paolo, zane, regan on. The easy to use powertool software utilizes dozens of pmbus commands to monitor and control our digital power products.
The system reduces the peripheral circuit complexity of dsp control system, and it could realize 24v to 72v dc input, and the output voltage could reach 12v. Timer ic ne555 ic1 is wired as an astable multivibrator. Digitally controlled potentiometer xdcp linear, 32 taps, 3 wire interface, terminal voltages vcc datasheet the intersil x93 is a digitally controlled potentiometer xdcp. Digital control of switchmode power supplies and converters has within the last. This book is focused on the fundamental aspects of analysis, modeling and design of digital control loops around highfrequency switchedmode power converters in a systematic and rigorous manner comprehensive treatment of digital control theory for power. The thesis deals with solving the adjustable current source with adjustable current cutout. Pdf a digitally controlled dcdc converter for an rf power.
The authors apply digital control theory to power electronics in a manner thoroughly different from the traditional, analog control scheme. Welcome to the introduction to smps control techniques web seminar. University of california, berkeley 2002 a dissertation. Digitally controlled envelope tracking power supply for an rf. This paper describes design and implementation of a digitally controlled dcdc converter that provides a dynamically adjustable supply voltage for a radio frequency power amplifier rfpa. Automotive core power supply 5v, 8a12a stepdown converter. 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. This power supply outputs one adjustable voltage, which is indicated by the one set of banana jack terminals. The ltc6903ltc6904 arelow power self contained digital frequency sources providing a precision frequency from 1khz to 68mhz, set through a serial port. How to make the variable power supply with digital control using lm317 ic voltage regulator and its application includes adjustable output. The tuxgraphics digital dc power supply has been a very successful product and this is now the third generation. A digitally controlled power converter for an electrostatic. Max1610 digitally controlled ccfl backlight power supplies. Users may download and print one copy of any publication from the public.
A good design of dcdc converter will maximize the power efficiency and stabilize the power supply of. Digital control concepts for power supply engineers. Finally, in the conclusions the main results of the ph. Pdf digital control of power suppliesopportunities and. Control handles microcontroller atmega16 from atmel. When it comes to feedbackloop control, both approaches seem to happily coexist. Dec 16, 20 a digitally controlled dual tracking power supply testing i kerry wong. Power supplies, mpumcubased systems, industrial controls, computer systems and many other product applications are requiring power supervisory functions which monitor voltages to ensure proper system operation. Pdf modeling an intelligent variable power supply device. Digitally controlled power supply raytheon company. Intelligent power supply design solutions microchip technology. Pdf this paper presents the design and development of a simple but efficient digitally controlled regulated power supply of a variable voltage. Building a digitally controlled bench power supply using.
The panel keys are locked, so the power supply can only rely on the remote control. A digitally controlled dual tracking power supply kerry wong. How to make variable power supply circuit with digital control. This digital signal also provides a minimum holdoff time for the power switching transistor for power up and low load. Electrostatic precipitators esps are devices used in industry to eliminate polluting particles in gases. Digital control of high frequency switched mode power. Most of the operating parameters of the analog power supply can be digitally controlled and monitored.
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