Texas instruments introduces two development kits for digital power systems design. Closed loop interleaved boost pfc design in zdomain with realtime verification. Programmable ff ccm pfc controller ice2pcs01 for 300w 393v pfc evaluation board with 85265v ac universal input. An3843, single phase twochannel interleaved pfc converter. Pfc reference designs for commercial electrical systems. We have a total of 10 workstations, so the total number of attendees is strictly limited to 20 engineers.
Conversion circuit design for high efficiency bridgeless. This application note focuses on the design of an interleaved power factor correction ipfc converter. Digitalpowerinterleavedpfc reference design dc to dc. Pfc particle flow code is a general purpose, distinctelement modeling dem framework that is available as two and threedimensional programs pfc2d and pfc3d, respectively. A common design practice is to select the switching frequency of the power converter. Design interleaving pfc boost power stages electronic. Analysis and design of an interleaved acdc boost converter with zvs 197 the matlabsimulink simulation parameters are tabulated in table 1 and table. The stnrgpf02 offers traditional inrush current control implemented with mechanical solution based on a relay and limiter resistor. This will be discussed later in the paper with actual design examples. Online design tool programs interleaved pfc power electronics. Microchips reference design for digital interleaved power. The fan9673 is an interleaved threechannel continuous conduction mode ccm power factor correction pfc controller ic intended for pfc preregulators.
Digital power control advances gan pfc design industrial. Tidm02008 is the updated version of tidm1007 unidirectional pfc. The digital interleaved pfc reference design works with a universal input voltage range and produces a single, highvoltage dc output of up to 350w. A digitallybased, interleaved power factor correction circuit employs a dedicated state machine that allows the designer to program its operation. The image of the stevalipfc01v1 3 kw threechannel interleaved pfc evaluation board immediately demonstrates its highly compact design with very high power density, while highlighting another important design aspect of highend pfc converters, which is the inclusion of certain analog circuitry to ensure maximum control in highfrequency. Investigation on interleaved boost converters and applications. This is an interleaved transition mode totem pole pfc design which is controlled by a single c2000 controller. Interleaving consists of two paralleled small stages in lieu of a bigger single one. The handling instruction gives information during the design phase of the application and for usage in the production. If the circuit is subjected to 20% to 100% loads, it achieves efficiencies greater than 95% at 115 vac and greater than 97% at 230 vac. Simplifying the software development for digital power.
These two design have the same hardware but the software update in tidm02008 makes it as a bidirectional pfc. Many relevant studies have proposed a number of suggestions, such as the use of pfc technology to enhance the power factor in 20061014, the use of bridgeless rectifier circuits to improve efficiency and the power factor. Single phase twochannel interleaved pfc operating in crm. An4836, single phase twochannel interleaved pfc operating in crm, rev. Topic 5 an interleaved pfc preregulator for highpower converters.
During the workshop you will learn how to design stable analog and digital control loops in both voltage mode and current mode. Sep 29, 2015 texas instruments digitally controlled 2phase interleaved power factor correction ilpfc converter based on a single c2000 tms320f28035 microcontroller mcu has the capability of controlling a 700w interleaved pfc power stage. A digitally controlled pfc converter for such applications is shown in figure 1. Specifically, it presents the hardware design and the corresponding software to control a 2phase interleaved power factor correction ilpfc front end.
Interleaved, 2phase pfc controller frequency clamped critical conduction mode fccrm to optimize the efficiency over the load range. On the other hand, the multichannel interleaved buck converter for the vr application has been intensively studied and thoroughly explored. To ensure a proper long term stability and reliability of the power module in the application details about the pcb requirements, heat sinks and thermal interface material as well as instructions on the assembly process are shown. The detailed system operation, the pfc control theory, and the control loops design is described in. For a twophase, interleaved pfc, the output ripple should be less than half of the single stage. Kolar, senior member, ieee abstractthis paper provides a comprehensive guideline for the design of a singlephase pfc targeting for minimal volume. In this webinar an interleaved boost pfc will be designed, two independent inner current loops will be closed with digital controllers and an outer voltage loop will be designed to provide the current reference for the inner loops. Pdf interleaved ccm totem pole bridgeless pfc reference. Interleaved power factor correction ipfc represents a cost and space efficient solution versus single stage pfc. The stevalipfc12v1 is a 2 kw interleaved pfc evaluation board for the. Both the inductors and diodes should be identical in all the channels of an interleaved design.
High efficiency ccm bridgeless totem pole pfc design using. Tidm1007 high efficiency gan ccm totem pole bridgeless. The ucc28070 evaluation module is a 300w, twophase interleaved, pfc preregulator that uses average current mode control techniques to achieve near unity power factor. Stnrgpf01 threechannel interleaved ccm pfc digital. Pdf modeling and control of bridgeless interleaved pfc. The kits contain complementary analog components, such as amplifiers, isolators, secondary power devices, linear regulators and mosfet drivers. Analysis and design of an interleaved acdc boost converter.
Closed loop interleaved boost pfc design in zdomain in this webinar we cover the design of an interleaved boost pfc. The digital pfc function is based on a conventional boost pfc with multiplication of the output voltage feedback combined with the input current and voltage to provide optimum harmonic correction and. Chen jiang systems engineer texas instruments linkedin. When crm control is applied to an interleaved pfc power supply the limitations associated with high peak inductor current typical of a single phase design are somewhat overcome.
Interleaved pfc boost converter with voltagedoubler. This reference design highlights the motivation, operating principle and design considerations of bridgeless totem pole pfc btppfc using gan enhancement mode hemt ehemt. Mar 27, 2018 closed loop interleaved boost pfc design in zdomain with realtime verification. Interleaved power factor correction ipfc using the dspic dsc.
Related product highlight pi expert power supply design software pi expert online from power integrations gives engineers the ability to input specifications and automatically generate power conversion solutions. The tidm02008 reference design from texas instruments illustrates a method to control a bidirectional interleaved continuous conduction mode ccm totem pole bridgeless power factor correction pfc power stage using a c2000 microcontroller mcu and lmg3410r070. Valley switching boost pfc reference design using c2000. Matlab model files for ipfc reference design using the dspic dsc. Stevalipfc12v1 2 kw twochannel interleaved pfc reference. Design guidelines for interleaved singlephase boost pfc. Mar 30, 2006 this twophase, interleavedpfc design uses a 220f output capacitor. Ganbased interleaved ccm totem pole bridgeless pfc. The lvpfc development board is based on conventional interleaved boost power factor correction pfc topology. With some modifications, the board can support universal offline voltage range 80 vac to 260 vac up to 200w output power.
Conversion circuit design for high efficiency bridgeless interleaved power factor correction. This reference design provides an easy method to evaluate the power and features of smps dspic digital signal controllers for an interleaved power factor correction application. Interleaved continuous conduction mode ccm totem pole ttpl bridgeless power factor correction pfc is an attractive power topology with use of high bandgap gan devices, because of high efficiency and reduced size of the power supply. An alternative topology replaces the single pfc boost converter with a two. Interleaving pfc preregulators is the next step in increasing pfc preregulator power densities, reducing the overall volume of the design. Interleaving pfc preregulators if done in this fashion will not increase the size of the emi filter. This application note includes the system design concept, the software design, and the control loops design. Simplifying the software development for digital power factor. Learn how interleaved pfc solutions based on mcus or specialized ics provide a simplified approach for implementing efficient end product. Digital power supply design workshop inperson training.
Feb 16, 2011 the dual phase interleaved pfc software implements three compensators for voltage, current and load balancing. Crcm pfc boost converter design mouser electronics. This reference design provides an easy method to evaluate the power, and features of smps dspic digital signal controllers for an interleaved power factor correction application. Pfc models synthetic materials composed of an assembly of variablysized rigid. The adp1047 is designed for singlephase pfc applications. A twochannel interleaved pfc operating in the ccm mode is used for the acdc conversion while compensating the power factor pf. Vienna power factor correction pfc reference design the mscsicpfcref5 is a threephase vienna pfc reference design for hybrid electric vehicle hevelectric vehicle ev charger and high power switch mode power supply applications. Im hrishikesh nene with the c2000 system solutions team. Today i will be presenting our latest ti design tida0961 which is an interleaved transition mode totem pole pfc reference design. In a perfect pfc circuit, load should look like a pure resistance load. A modified 2phase interleaved power factor correction ilpfc kit is used to validate the software and system operation.
The interleaved pfc reference design unit works with universal input voltage range and produces a. The preregulator was designed to operate off a universal ac line input of 85v to. Interleaved pfc average current control, application note, rev. Design procedure for ibc the interleaved boost converter design involves the selection of the number of phases, the inductors, the output capacitor, the power switches and the freewheeling diodes. The preregulator was designed to operate off a universal ac line input of 85v to 265v and provides a regulated 390v dc output. Digital power supply design workshop learn how to design digital power supplies and pfcs from ground up quickly and easily with this indepth laboratory based design workshop. Ganbased interleaved ccm totem pole bridgeless pfc reference. Substantial outofphase operation in all conditions including startup, ocp or transient sequences. The conventional interleaved pfc boost rectifier is shown in fig. Low voltage pfc development kit microchip technology. Twophase interleaved pfc converter w power metering test. We will talk about three different topologies that allow power factor correction, and we will also show a simplified electric diagram of an. Feedforward for improved loop compensation eased design of the downstream converter.
Stevalipfc01v1 3 kw three channel interleaved pfc with. Bom, gerber, user manual, schematic, test procedures, etc. Two independent inner current loops are being closed with digital controllers and an outer voltage loop is designed to provide the current reference for the inner loops. Microchips digital interleaved pfc reference design works with a universal input voltage range and produces a single, highvoltage dc output of up to 350w. Tidm1022 valley switching boost power factor correction pfc reference design. Ucc28064a natural interleaving transitionmode pfc controller. As tidm02008 includes all the features provided by the original design, it is a superset of tidm1007 and the technical support for tidm1007 will be continued as a part of tidm02008 updates. Twophase interleaved power factor correction converter. Targeted applications include onboard chargers for. The hardware supports 24 vac input but the pcb has been designed following highvoltage design rules.
Digitally controlled high efficiency and high power. Edn advantages of interleaved boost converters for pfc. Interleaved pfc is an emerging solution that becomes. The controller is capable of driving up to 3 interleaved channels, generating the proper signals in each condition. Texas instruments digitally controlled 2phase interleaved power factor correction ilpfc converter based on a single c2000 tms320f28035 microcontroller mcu has the capability of controlling a 700w interleaved pfc power stage. The attendees may also obtain a free trial license for birichas power supply design software wds and pfc loop design software pld if they wish. Introduction to power factor correction ipfc design overview ipfc reference design conclusion in the following section we will have an overview of the proposed solution for power factor correction. This allows the power level to be extended closer or even beyond the 1kw range and reduces the size of the emi filter while retaining all the benefits that make crm. This topic will evaluate the benefits of interleaving pfc preregulators. Dec 12, 2014 the ucc28070 evaluation module is a 300w, twophase interleaved, pfc preregulator that uses average current mode control techniques to achieve near unity power factor. Its dualphase interleaved pfc software implements three compensators for voltage, current and load balancing.
This kit is a reference design that can be modified to meet custom system requirements. The stevalipfc01v1 3 kw interleaved pfc kit is based on the stnrgpf01 digital controller and includes a separate power board, control board and adapter board. The tidm1007 reference design from texas instruments illustrates a method to control an interleaved continuous conduction mode ccm totem pole ttpl bridgeless power factor correction power stage using a c2000 mcu and the lmg3410, a singlechannel gan power stage containing a 70m. Before you run the application, check the revision of your hvpmc3ph. Design guideline for 3channel interleaved ccm pfc using the. Topic 5 an interleaved pfc preregulator for highpower. Closed loop interleaved boost pfc design in zdomain. Control loops design average current mode interleaved pfc control, application note, rev. Stnrgpf01 interleaved pfc kit stmicroelectronics power. One basic approach of this study is trying to extend the.
A c2000 piccolo microcontroller is the controller for the two 180 phase shifted boost power stages that comprise the power factor correction converter, and, additionally, it monitors the line and. This excelbased design tool is designed for a pfc preregulated boost converter using the fan9612 interleaved dual bcm pfc controller. To perform functional and efficiency testing, you need the following equipment. Designing interleaved power factor correction digikey. Features key features of interleaved pfc reference design. You can use the edesignsuite software available on the st website to configure the stnrgpf12 according to specific design requirements for each interleaved pfc. It also has a feedforward compensator based on input average voltage. The attendees work only alone or in pairs at a workstation. For automotive level ii residential charging applications in north america and europe the bridgeless interleaved pfc boost converter is an ideal topology candidate for typical supplies of 240 v. And8407 key steps to design an interleaved pfc stage driven.
Crcm pfc boost converter design 4 design note dn 2010 v1. This power topology is capable of bidirectional power flow pfc and gridtied inverter and it uses gallium nitride gan. The conventional singlestage pfc controller design nevertheless relies on a suitably large inductor and requires substantial filtering to reduce highfrequency ripple. This reference design illustrates a method to control an interleaved continuous conduction mode ccm totem pole ttpl bridgeless power factor correction pfc power stage using a c2000. Key steps to design an interleaved pfc stage driven by the ncp1632 interleaved pfc is an efficient solution which is particularly popular in applications where a strict form factor has to be met like for instance, in slim notebook adapters or in lcd tvs. This design is a digitally controlled, two phase interleaved, 700w power factor correction converter with added power metering functionality. At full load for a singlestage, 350w pfc preregulator, the outputcapacitor ripple would be roughly 33. An alternative topology replaces the single pfc boost converter with a two interleaved converters each operating 180 out of phase. The stnrgpf01 is a digital configurable asic developed by stmicroelectronics, which can drive up to three channels in an interleaved pfc for industrial applications and is designed to. Single phase twochannel interleaved pfc operating in crm, rev.
Apr 12, 2018 the totempole pfc converter reference design demonstrates a twophase interleaved topology figure 2 switching at a maximum frequency of 1. Interleaved multichannel boost pfc is a promising candidate to meet those challenges, but the interleaved boost converter is a less explored area. The fan961112 family of interleaved dual boundary conductionmode bcm powerfactorcorrection pfc controllers operate two parallelconnected boost power trains 180 out of phase. Incorporating circuits for the implementation of leading edge, average current, and boosttype power factor correction. Stevalipfc12v1 2 kw two channel interleaved pfc with. Poweresim free smps switching power supply transformer. Design interleaving pfc boost power stages electronic products. It support led driver design, pfc, notebook adaptor, phone. The stevalipfc12v1 2 kw interleaved pfc reference design features the performance of analog cyclebycycle current regulation and the flexibility of digital control to generate sinusoidal supplies with very high power factor and very low harmonic distortion. As boost circuits are relatively straightforward to design and drive. Crm mode avoids the switching losses and enables sustained high efficiency at even higher pwm frequencies compared to ccm operation. The ucc28064a interleaved pfc controller has higher power ratings than.
This document includes target control theory, system design concept, hardware design, and software design. The application note an1106, power factor correction in power conversion applications using the dspic dsc ds01106, describes the digital implementation of a singlestage pfc using a dspic digital signal controller dsc. The stnrgpf02 stnrgpf12 is a digital controller designed specifically for interleaved pfc boost topologies and intended for use in high power applications. This document includes the control scheme, the system design concept, peripheral configuration, and software design. The stevalipfc01v1 is a 3 kw interleaved pfc evaluation board for the.
It also has a feedforward compensator, based on the average input voltage. Digitally controlled high efficiency and high power density. This design illustrates a method to control this power stage using c2000 mcus and the lmg3410 gan fet. The interleaved pfc reference design unit works with universal input voltage range, and produces a single high voltage dc output up to 350w of power. Licensee agrees that it has received a copy of the content, including software i. A 3kw btppfc design example using gan systems 650v gan ehemt is presented in detail.
And9654 key steps to design an interleaved pfc stage. The stnrgpf01 is a digital controller designed specifically for interleaved pfc boost topologies and intended for use in high power applications. This is due to the energy storage requirement of the two interleaved inductors being half that of a single stage converter. Digital power interleaved pfc reference design element14. Interleaving will reduce magnetic volume and has the added benefit of reducing rms current in the boost capacitor. Tech lead on control and software design interleaved, 750 w, twophase boost pfc stage. The totempole pfc converter reference design demonstrates a twophase interleaved topology figure 2 switching at a maximum frequency of 1.
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