Ointelligent power supply design is a fusion of analog, digital, and software. Pcb design will require good ground routings and a separation of analog and digital supplies, probably with a filter. Microcontrollerbased energy metering using the ad7755. Pic16f877a microcontroller introduction and features. Mcu of microcontrollers in power electronics used always been interested unfortunately this type mcu, pic, atmel a controlled power supply did not do it to do yade get the idea people who want a few examples mcu controlled digital power supply has a project. This can come either from vin via an onboard regulator, or be supplied by usb or another regulated 5v supply. Read about 500 w fully digital acdc power supply dsmps based on stm32f334c8 microcontroller on. If desired, the relay can be powered by a separate power supply, so, for instance, 12v solenoids can be controlled by the microcontroller. The advent of lowcost, highperformance digital signal controllers dscs provides a practical route to realizing the benefits of digital power supplies. This confusion is understandable, as intelligent power supply design can include everything from the concept of a completely digital power supply using a dsp with no analog components, all they way down to simple pointofcontrol additions to solve problems like sequencing and softstart. Power for mixed analogdigital systems practical power solutions.
I was dreaming to make such a project where i can regulate the voltage using push button. I am using the dplibtemplatef2803x as the starting point for my development. So, as speeds increase and complexity mounts, it is an inevitable consequence that the supply voltages would drop from 5v to 3. Data converter converts the value of the signal at output to digital value for the value to be. On the left side, there is the debug domain or isolated domain, which contains a xmc4200 mcu as onboard. Using a microcontroller based design we can build a power supply which has a lot. The microcontroller based power supply is developed. Pdf modeling an intelligent variable power supply device. Power supply platform and functional safety concept. The intelligent power supply integrates a microcontroller mcu or digital signal controller dsc for a fully programmable and flexible solution.
All details can be adjusted with a microcontroller controlled digital power supply project volts and amps values can be read on the lcd pcb box design 3dimensional views of the c language prepared by the powdermagazines source software projects belonging to an applied input voltage. Now that we have convinced you that microcontrollers are great, there is the question of which microcontroller to use for a given application. The 32bit microcontroller uses the 32bit instructions to. Intelligent power supply design 2 system level design flow. The tuxgraphics digital dc power supply has been a very successful product and this is now the third. In these systems, a secondary side microcontroller mcu is typically not capable of starting a system without the use of a separate bias power supply. Based on the voltage, the charging process can be carried out in two distinct ways boost and trickle. The terms digital power supply and digital power are being used by many companies to describe their new power supply products.
Variable 012v, digitally controlled, power supply using a. Reference design enables a secondary side microcontroller. Modern power elec tronic devices are switching type. Variable power supply using microcontroller written by namrata alve, pratik ambikar, pranay.
Generally a high voltage dc power supply consists of pulse generator, a driver and. It has 8 bit adc module which consists of 8 channels. The designer is fully responsible for the reliable function of the generated code. This is simple to build microcontroller controlled power supply that can switch between 5 or 32 or more preconfigured voltages between 1. Xmc4200 digital power control card user manual infineon. How to make variable power supply circuit with digital control.
The microcontroller capacitive power circuit and then rectified by a converts this voltage using an analog to digital bridge rectifier to supply 12v dc to the voltage converter adc and also takes into regulator which in turn supplies 5v to the consideration the voltage which is roughly microcontroller and also the signal passed 220volts, and. Jul 17, 2015 500 w fully digital acdc power supply based on the stm32f334 microcontroller pdf overview the stevalisv147v2 is a digital switch mode acdc converter consisting of two power stages. The operation of the control loop can be adjusted on the fly by the microcontroller, based on the power supply operation, digital inputs or external environmental variables measured through the onboard adc. 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 provided by an avr microcontroller in a feedback loop i like the idea, and id like to build my own, but i think the interface is a bit kludgy, so id. It has 54 digital inputoutput pins of which 12 can be used as pwm outputs, 12 analog inputs, 4 uarts hardware serial ports, a 84 mhz clock, an usb otg capable connection, 2 dac digital to analog, 2 twi, a power jack, an spi. Arduino based variable power supply circuit diagram and code. Design and implementation of a microcontroller based power. Intelligent power supply design microchip technology. Sw4 switch enables the supply of the board after plugging the power adapter. What is a digital power supply psu electronics notes.
We can use 8 analog sensors with this microcontroller. The application contains the rda5807m digital tuner which requires few passive components around it, the open drain buffers, the dc power supply source. All details can be adjusted with a microcontroller controlled digital power supply project volts and amps values can be read on the lcd pcb box design 3dimensional views of the c language prepared by the powdermagazines source software projectselectronics projects. Fujitsu semiconductor releases new microcontroller for. Digital power and digital power supply can mean different things to different people. Building a digitally controlled bench power supply using. Hardware design guideline power supply and voltage measurement. Power supply circuits practical analog semiconductor circuits. The power stage can be used as half or fullbridge and includes current limiting, thermal shutdown and undervoltage. 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.
The arduino uno is a microcontroller board based on the. Microcontroller based solar charger engineering projects. Low voltage power supply produces 5 volts for the buffer amplifier circuit, summing amplifier and microcontroller. A digital dc power supply programmable bench power supply. The graphical user interface often generates a code, which is then compiled to run on the core of a microcontroller or on a dsp. Digital dc power supply using pwm with pic microcontroller. To accelerate digital power supply application development, a userfriendly, graphical user interface gui is provided for power designers using the ucd91xx controllers. Usulan program kreativitas mahasiswa power supply digital. Designing digital power supplies with a state machine. The regulated power supply used to power the microcontroller and other components on the board. These power supplies typically exhibit a lot of ripple voltage i. Implementation the design of the acdc variable power supply can be better understood with the circuit diagram.
For the digital version of this power supply, the functions of both the dedicated analog controller, and housekeeping mcu can be combined in a single dspic dsc. Jan 14, 2016 in our lab i saw many dc power supply which have a variable knob to regulate the output. The digital power supplies are proving to be a better and we prefer a digital power. Intelligent, psu, voltage, microcontroller, precision. Designing the digital compensator for ucd91xx based. Stm32 based high performance programmable digital power. I was dreaming to make such a project where i can regulate the. The arduino mega 2560 is a microcontroller board based on.
Below are some examples of intelligent power supply functions. The architecture is typical of such systems and consists of an 8 channel input. Dscs can provide an elegant and cost effective way forward to realizing the many benefits of digital power opening up new possibilities for innovation in the power supply world. The stevalisv147v2 is a digital switch mode acdc converter consisting of two power stages. A proper electronically stabilized bench power supply unit is an important but also expensive device. Microchip microcontrollers have reached a sufficient level of speed and complexity that they. Programmability enables power supply redesigns with the model has an lcd display for voltage. Pdf design and development of a microcontroller based. Digital power supply technology can help this by changing the turnon slew rate of the series power mosfet in response to changes in load. The tuxgraphics digital dc power supply has been a very successful product. Pdf design and development of microcontroller based digital. It is the first arduino board based on a 32bit arm core microcontroller. Dengan latar belakang inilah maka akan dirancang sebuah power supply digital.
This topic attempts to clarify some of the mysteries of digital control for the practicing analog power supply designer. Signal controller dsc for a fully programmable and flexible solution. It ensures that the system is protected from itself and that the consumer is also safe as he benefits from the electrical power supply. Digital programmable power supply international journal of.
Digital onoff control for low standby power power supply sequencing and hotswap control. This guide will walk you through every aspect of the. Microcontroller power supply reactions on vbat transients. The microcontroller is programmed using embedded c compiler and in specific mikroc pro to. Graphical user interface of a digital power supply. This gui allows designers to configure easily the ucd91xx and its digital compensator in order to implement essential power supply features and. As a result, this technology is being used increasingly in power supply designs of all sorts. As i am not an industrial level expert so this project is just about a digital dc power supply of small range5v12v. The arduino due is a microcontroller board based on the atmel sam3x8e arm cortexm3 cpu. Mar 17, 2011 the power supply for the operational amplifiers and the microcontroller will be 3. Intelligent power supply design solutions microchip technology. To some the term digital power supply may loosely refer to a power supply that uses switching technology, i. A very important device for hobby electronic is a reliable dc powersupply.
To deliver such performance, the power inverters is driven by highperformance pic 16f877a microcontroller units mcus that can achieve highlevel inverter control, and therefor this microcontroller is the heart of the system and controls entire system. Using a microcontroller based design we can build a power supply which has a lot of extra features, is easy to build and very affordable. There are many advantages to using digital power supply technology. The first step on your journey is to pick a laptop power.
Power supply 1 is dedicated for circuits galvanically connected to the mains voltage voltage and current sensing, ad converter, and mcu circuits. Now that we have convinced you that microcontrollers are great, there is the question of which microcontroller to. Apart from the power supply, the only dedicated pins on the atmega16 are reset, external crystaloscillator xtal1 and xtal2, and analog voltage reference aref. Like all other microcontroller, pic16f877a also provide builtin useful features as mentioned in this list. I would like to realize a project with a buck boost power supply. Microcontroller power source considerations for arduino. Power system protection is very essential and necessary for a dependable electrical power supply. This guide will walk you through every aspect of the building process. The stevalisa147v3 is a digital switch mode acdc converter consisting of two power stages. Building a digitally controlled bench power supply using an. Mode power supply reference manual should prove useful. Many different digital power supplies still have a significant disadvantage. Pdf design and development of a microcontroller based regulated. Data converter converts the value of the signal at output to digital value for the value to.
Because of that, microcontrolles are now part of eve ry. The command and control of the fm receiver is performed at this stage with a development system equipped with the at89s8253 microcontroller. After importing this project into ccsv4 the build process was successful. Levels of microcontroller integration in power supply design. 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 provided by an avr microcontroller in a feedback loop. Designing the digital compensator for ucd91xx based digital.
To indicate the status, one indicating led led4 is provided on board see figure 2. The power board has a socket to accommodate a variety of microcontroller chips plus essential support circuitry. Architecture support every level of software developer from. The arduino mega 2560 is a microcontroller board based on the. Digital power supply control attempts to move the barrier between the analog and digital sections of the power supply right to the pins of the control ic. Incorporates digital power supply system control onto a single microcontroller chip in addition to can, multifunction serial and other network control functions, mb91f552 incorporates a host of optimal functions for digital power supply control such as a 200mhz digital pwm moduleon a single microcontroller chip. Working of variable power supply with digital control a power supply is a hardware component that supplies power to an electrical device. A digital dc power supply programmable bench power. Designing a digital power supply with stm32 microcontrollers.
Simple microcontroller based mains power analyzer device. A relay can be used to switch higher power devices such as motors and solenoids. The signal from ph electrode goes to the buffer amplifier circuit. Power supply 2 provides supply for galvanically isolated circuits communication interface and analog output which are connected to external devices. It provides three timers timer0, timer1 and timer2. The control electronics are suitable for controling with logical circuits.
Microcontroller enables digital control in smps power. Therefore i would like to use the ti dp library within controlsuite. The basic elements of a switching power supply are power electronics and control electronics. Pdf a microcontroller based advanced technique of generating regulated. The value of the required signal is fed to microcontroller by keypad. In our lab i saw many dc power supply which have a variable knob to regulate the output. Intelligent power supply design adding a microcontroller to a. Basically it is aimed at switching on a more convenient power supply to the load. The use of microcontrollers in modern solutions of power. A proper electronically stabilized powersupply can easily cost over 150 euro.
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