Now i want to introduce some pfc topology and then get the comparison of something. A highefficiency, 300 w bridgeless pfc stage introduction environmental concerns lead to new efficiency requirements when designing modern power supplies. Interleaved multiphase pfc driver stmicroelectronics. A singlestage bridgeless zvs acdc converter for power. 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. A dimmable chargepump zvs led driver with pfc request pdf. Hybridmode interleaved boost converter design for fuel. Placement of zvs auxiliary circuit in boost pfc converter. An interleaved flybacktyped led driver with zvs and. Power factor correction, shapes the input current of offline power supplies to maximize the real power available from the mains. Bidirectional interleaved ccm totem pole bridgeless pfc. Switching wave form of the main switches sa and sb and auxiliary switches for d pfc converters are divided into twostage type and singlestage type according to their topologies1,2,7. A zvs interleaved power factor correction based boost, half bridge and full bridge. And8481 a highefficiency, 300 w bridgeless pfc stage.
A singlestage led streetlight driver with softswitching and interleaved pfc features chunan cheng, chienhsuan chang, hungl iang cheng, enchih chang, tsungyuan chung and mantang chang department of electrical engineering, ishou university, dashu district, kaohsiung city 84001, taiwan. This application note focuses on the design of an interleaved power factor correction ipfc converter. This reference design uses a 600v gan power stage, the lmg3410, from texas instruments ti and tis piccolo f280049 controller. Sepic converter with interleaved inductors and llc circuit. The preferred method for implementing power factor correction and interleaved power factor correction is the boost converter due to the reduced current ripple, simplicity of gate driver implementation, and also because it meets the requirements of output voltage.
An interleaved pfc preregulator for highpower converters. Flyback converter has advantages of simple circuit configuration and easy control. It is suited to drive logic and normal level mosfets and supports optimos tm, coolmos, standard level mosfets, superjunction mosfets, as well as igbts and gan power devices. The first one is classical boost pfc, and the second is the dual boost bridgeless pfc.
Proposed singleswitch type softswitching boost converter minimizes switching loss by adopting a resonant softswitching method. Design and simulation of an efficient interleaved soft 525 fig. Acdc switch mode power supplies are designed to provide dc power from ac line voltages. For the twostage type of pfc converter, the first stage is designed for rectification and power factor correction, and the second stage is designed for isolation and output voltage regulation. Pfc boost converter design guide application note 2 revision1. Zero voltage switching zvs is considered the panacea for all the challenges. However, based on the traditional circuit models of the coupled inductor, the analysis and control of the coupled. It can cover several functions and interleaved pfc configurations. Pfc unidirectional high power zvs for low loss on hv inputs interleaved pfc reduces stress and emi 2. This paper presents the analysis of the interleaved type pfc power factor correction converter. The reference designs below include information on power factor correction pfc, highvoltagecompatible bias generation and primarysecondary isolation. I will be making stuff public, but i cannot guarantee how good the documentation will be i dont have the best record, but i will try my best.
Topic 5 an interleaved pfc preregulator for highpower. A twophase interleaved power factor correction boost converter. For the love of physics walter lewin may 16, 2011 duration. An3843, single phase twochannel interleaved pfc converter. Sswitching was used in both implementations due to the. Burst mode eliminates the need for an auxiliary flyback converter when paired with. By replacing a freewheeling diode with a selfdriven synchronous rectifier sr, efficiency improvement is achieved due to the reduced conduction loss on the sr. Simplis mdm selfoscillating flyback transformer a flyback transformer designed, simulated, and postprocessed using mdm for the selfoscillating converter that regulates a 5v2a output from a 300350v input another standard simplis. Feb 27, 2011 for the love of physics walter lewin may 16, 2011 duration. A singlestage highpowerfactor lightemitting diode led. The switches s a1 and s b1 are the main switches, i. Single and interleaved pfc llc, zvs with pulse transformer synchronous rectification description the 2edn7424 is an advanced dualchannel driver. This application note describes the implementation of the terleaved power factor correction pfc operating in the continuous conduction mode ccm on the mkv46f256vlx16 arm cortex m4 mcu. The basic function of the fan4822 is to provide a power factor corrected, regulated dc bus voltage using continuous, average currentmode control.
Power factor correction pfc technique is an important topic in the field of power electronics. For instance, the 80plus initiative and moreover its bronze, silver and gold derivatives force desktops and servers manufacturers to work on innovative solutions. A highperformance singlephase bridgeless interleaved pfc. Interleaved oost converter employing zvs and zcs is discussed in this paper. A boost inductor designed in mdm for the constant ontime pfc converter that is a standard simplis example. Implementation using mkv46f256vlx16 on high voltage motor control platform. 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.
Design and experimentation of fpgabased softswitched. And8407 key steps to design an interleaved pfc stage driven. Design interleaving pfc boost power stages electronic products. Generally, isolated pfc converters are divided into twostage type and singlestage type according to their topologies1,2,7. The procedure includes a selection of semiconductor based on losses. Interleaved pfc is an emerging solution that becomes particularly popular in applications where a strict form factor has to be met like for instance, in slim notebook adapters or in lcd tvs. By replacing a freewheeling diode with a selfdriven synchronous rectifier sr, efficiency improvement is achieved due to. How to design multikw converters for electric vehicles.
We do resonant switching is an often heard mantra in the design of power converters today. A novel zvs interleaved boost converter request pdf. Interleaved power factor correction linkedin slideshare. A singlestage led streetlight driver with softswitching and. Born abstract power density has become increasingly important for applications where weight and space are limited. Beware of zero voltage switching mouser electronics. Highpower dualinterleaved zvs boost converter with. Led driver with coupled inductors, suitable for streetlight applications. Besides having all features integrated to support an. A novel activecurrentsharing method for interleaved. Power density is a unique challenge requiring the latest transistor technology to push switching frequency to shrink passive filter size. A zvs interleaved power factor correction based boost, half bridge.
Interleaved totempole bridgeless pfc rectifier with zvs. In this paper a merged interleaved flyback power factor corrected pfc converter with active clamp and zerovoltage zerocurrent switching zvzcs is introduced. Paper 3 studied totempole convies erter in zvs dcmccm boundary mode, with peak efficiency around 98. Therefore, the dualphase interleaved zvs totempole gan pfc with coupled inductor 12, as shown in fig. Design interleaving pfc boost power stages electronic. This paper presents an interleaved totempole bridgeless power factor correction pfc rectifier which consists of a coupled inductor and two interleaved b interleaved totempole bridgeless pfc rectifier with zvs and low input current ripple ieee conference publication. A novel interleaved singlestage acdc converter with high power factor and zvs 9 international journal of pure and applied mathematics special issue 1835. The classical boost pfc has the lowest efficiency with the lowest cost. And8407 key steps to design an interleaved pfc stage.
It applies to converters with offtheshelf components andor pcbintegrated passive and active components. A singlestage led streetlight driver with softswitching. 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. This paper presents a singlestage driver with softswitching and interleaved powerfactor correction pfc features suitable for lightemitting diode led energysaving streetlight applications.
An interleaved flybacktyped led driver with zvs and energy recovery of leakage inductance abstract. How to design multikw converters for electric vehicles part 1. Pfc unidirectional high power zvs for low loss on hv inputs interleaved pfc reduces stress and emi 2 ti information selective disclosure. Ruiz, misha kumar, and gang liu1, 2 power electronics laboratory, delta products corporation, 5101 davis drive, research triangle park, nc, usa. Mode i and mode ii are used with each boost converter operating in continuous conduction mode and discontinuous conduction mode. Figure 4 from a merged interleaved flyback pfc converter with. Ucc28064a natural interleaving transitionmode pfc controller. Optimisation of an integrated bidirectional interleaved. The lm5032 highvoltage, dual interleaved, currentmode controller supports a dual path implementation in an ideal and costefficient way. The proposed led streetlight driver integrates an interleaved buckboost pfc converter with coupled inductors and a halfbridge llc resonant converter into a singlestage powerconversion circuit. The presented led driver integrates an interleaved buckboost power factor correction pfc converter with coupled inductors and a halfbridgetype seriesresonant converter cascaded with a fullbridge recti.
A merged interleaved flyback pfc converter with active. Passive solutions were developed first, which required bulky inductors and capacitors. Beware of zero voltage switching sanjay havanur, sr. A novel activecurrentsharing method for interleaved resonant converters yungtaek jang, milan m. Stnrgpf01 3channel interleaved ccm pfc digital controller. Deepthi priyanka assistant professor lenora college of engineering, rampachodavaram, ap. Design and simulation of an efficient interleaved soft. Power factor corrector with bridgeless flyback converter for. The procedure is implemented after selection of the topology and the modulation principle. Softswitching buck pfc converter for a highefficiency ac. Softswitching, interleaved inverter for high density applications rachael g. A merged interleaved flyback pfc converter with active clamp. Paper 4 proposed an interleaved totempole pfc with limited benefitoft.
Pfc efficiency budget texas instruments 201415 power supply design seminar 64 pfc design becomes more challenging at platinum level efficiency and much harder at titanium level efficiency well designed singlephase pfc and interleaved pfc achieve around 97. This training module introduces the ucc28070 twophase interleaved ccm pfc controller and its basic operations. Ucc25630x llc controller and the ucc24624 synchronous rectifier controller. This helps verify that the adc and pwm driver modules are under normal interleaved pfc. Check the project options to make sure that 2phase interleaved pfc is selected and that the valley switching option is automatically set to valley switching disabled.
Circuit analysis of zvs interleaved boost converter fig ure3 shows the interleaved zvs boost converter. At the same time, the pdb module is set in ored trigger output mode to. Mar 17, 2011 welcome to the training module on texas instruments twophase interleaved ccm pfc controller. Softswitching, interleaved inverter for high density. The frontend power factor correction pfc converter is a key component used in modern telecommunica. Generally, isolated pfc converters are divided into twostage type and singlestage type according to their topologies 1, 2, 7. A new zvs zcs interleaved boost converter is proposed in this paper. A single stage acdc employs only one controller and one flyback power stage to implement an isolated pfc power factor correction solution. Zvs is accomplished by using a second, smaller mosfet, together with a storage element inductor to convert the turnon losses of the boost mosfet into useful output power. A zvs interleaved boost acdc converter used in plugin electric. The unfolding inverter is, using an interleaved flyback with active clamp for the dcdc stage. In this paper, a softswitching buck powerfactorcorrection pfc converter for a highefficiency acdc lightemittingdiode led driver is proposed. Interleaving consists in paralleling two small stages in lieu of a bigger one, which may be more difficult to design.
Highfrequency, criticalconductionmode crm, totempole power factor correction pfc is a simple approach for designing highdensity power solutions using gan. The singlephase twochannel interleaved pfc control system uses the pdb module to enable a delay of the a counter. In this paper a merged interleaved flyback power factor corrected pfc converter with active clamp and zero voltage. Power factor correction pfc topology comparison video. Valley switching boost pfc reference design using c2000. This compensates for the delay of the hardware driver circuit for synchronizing the actual behavior of the power switch. It is shown that the pllbased closedloop methods always provide stable operation, unlike the openloop control methods, where the only method which results in stable operation is the slave synchronization to. Passive solutions were developed first, which required bulky inductors and. Softswitching buck pfc converter for a highefficiency acdc. An interleaving pfc preregulator for highpower converters michael oloughlin, texas instruments abstract in higher power applications, to fully utilize the line, power factor correction pfc is a necessity. This power topology is capable of bidirectional power flow pfc and gridtied inverter and it uses gallium nitride gan devices, which enables higher. Gan fetbased high ccm totempole bridgeless pfc psds seminar.
A 150 w pfc is easier to design than a 300 w one modular approach better heating distribution extended range for critical conduction mode crm smaller components help meet strict form factor needs e. Valley switching boost pfc reference design using c2000 mcu. Pfc boost converter design guide infineon technologies. Rebuild the whole project to make the change valid if any. Jun 27, 2017 now i want to introduce some pfc topology and then get the comparison of something. Gan fetbased high ccm totempole bridgeless pfc psds. An active circuit branch composed of an auxiliary switch and a snubber capacitor is added in parallel with the main switches.
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