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What is flyback converter?
The flyback converter is used in both AC/DC and DC/DC conversion with a galvanic isolation between the input and the output(s). It is a buck-boost converter with the inductor split to form a transformer, so that the voltage ratios are multiplied with an additional advantage of isolation.
When driving a plasma lamp or a voltage multiplier, the rectifying diode of the buck-boost converter is left out and the device is called a flyback transformer (FBT).
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2011-07-22 Wide input flyback converter features 5V at 2.6A output
Here's a reference design is for a flyback, 5V Class 3 powered device (PD) with a wide 9V to 57V auxiliary input
2016-05-12 Wake up PSR flyback converters
Read about a technique for primary-side regulated flyback converters that speeds up the transient response and reduces the amount of output capacitance that the design requires for good transient response
2000-12-06 Very wide input voltage range, off-line flyback switching power supply
This application note reviews one method of enabling a discontinuous-mode flyback converter to operate beyond its traditional range of input voltage of 3:1 to a range of more than 6.6:1 without affecting the reliability of its operation.
2005-11-16 Underutilized SEPIC outperforms flyback topology
The article compares SEPIC and flyback power supplies that have identical requirements. See how one solution is more efficient than the other
2008-11-14 Switching regulator simplifies flyback converter design
Linear Technology Corp. has released the LT3573 isolated monolithic flyback switching regulator with an integrated 1.25A NPN power switch
2002-06-07 STMicro power converter has 8V to 40V input range
The VIPer22A offline, flyback converter from STMicroelectronics provides an input range of 8V to 40V and delivers up to 12W of power.
2013-08-14 SSL LED driver integrates boost, flyback converters
The iW3623 from Dialog Semiconductor offers a universal 100-277VAC input range and output power up to 45W.
2010-02-19 Resonant converter packs power factor correction
From NXP Semiconductors comes the GreenChip TEA1713 resonant half-bridge converter claimed to be the first resonant controller with integrated power factor correction
2007-07-16 Quasi-resonant flyback converter for low cost set-top box application
This document describes a reference design for a 17W switch mode power supply dedicated to set-top box applications.
2014-02-12 Power tip: Boost discontinuous flyback efficiency
Implementation in a discontinuous flyback is a significant challenge compared with a continuous flyback
2006-01-04 Multi-topology converter integrates constant-current PWM
Linear Technology unveiled a current-mode multi-topology converter with constant-current PWM
2006-05-22 MOSFETs designed for switching converter apps
International Rectifier introduced new negative-channel 60, 80 and 100V HEXFET MOSFETs for switching converter applications used in networking and communications systems
2007-09-25 MIC2145 low power POE flyback converter
The MIC2145 skip mode controller is used to implement a flyback converter that is intended for use in non-isolated, low power, POE applications.
2000-12-08 How to keep a flyback switch mode supply stable with a critical-mode controller
This application note explains why the vast majority of low-power flyback SMPS (off-line cellular battery chargers, VCRs, etc.) operate in the discontinuous area and presents an integrated solution especially dedicated to SMPS
2000-12-08 How to deal with leakage elements in flyback converters
This application note reviews the magnetic and electric models of two- and three-winding transformers, discusses how to extract the inductance values of these models by measurements and calculations, and demonstrates how to feed a SPICE model.
2014-12-05 Grasping isolated DC/DC converter voltage regulation
In terms of output voltage regulation accuracy, isolated DC/DC converters usually fall into three categories. This article discusses various regulating schemes and the corresponding topologies.
2008-06-30 Flyback power supply control with the SG6741
This application note describes a design strategy for a high efficiency. compact flyback converter. Design considerations, mathematical equations, and guidelines for a PCB layout are presented.
2009-03-04 Flyback DC/DC controller suitable for several apps
The LTC3803H flyback DC/DC controller contains all the features to design a high efficiency single-ended isolated or non-isolated flyback converter for automotive, industrial, telecom, Power-over-Ethernet and datacom requirements.
2009-04-22 Flyback converters with the L6561 PFC controller
The L6561, a controller specifically designed for power factor correction (PFC) circuits, may be used in flyback converters as well. This application note describes the different configurations of L6561, and highlights the advantages and disadvantages of each configuration
2002-05-06 Expected voltages and waveforms from an HV9120-controlled flyback converter
This application note illustrates the details of the waveforms that one should expect to see at selected points around the converter circuit
2011-08-04 Dual switch flyback converter targets AIO apps
Fairchild's mWSave technology-based dual switch flyback transformer is designed for 75~230W applications and provides low power loss at light load
2002-05-06 Designing high-performance flyback converters with the HV9110 and HV9120
This application note describes two different circuits developed to show the flexibility of flyback converters built with the HV91XX family PWM ICs
2003-05-28 Design of a small, efficient, isolated flyback converter for 24V input systems with Si9121
This application note describes, in detail, the design of a flyback converter for 24V input systems using the Si9121.
2003-09-19 Design equations of high-power-factor flyback converters based on the L6561
This application note describes the equations of various boost topologies that can be used to control flyback converters
2007-04-27 DC/DC controller eases flyback converter design
Linear Tech's LTC3873 current-mode PWM controller contains all the features necessary to design high-efficiency, single-ended isolated and non-isolated flyback converters
2000-12-07 Critical conduction mode, flyback switching power supply using the MC33364
This application note presents a way of designing an ac/dc flyback converter that is operating in the critical conduction current mode, using the MC33364.
2007-12-05 Converter face-off: SEPIC vs. flyback
This article offers a comparison of the flyback and SEPIC topologies based on both analytic and hardware comparisons and demonstrates that the SEPIC is often the best choice
2008-06-30 Applying SG6203 to control a synchronous rectifier of a flyback power supply
This application note describes a detailed design strategy for a high-efficiency compact flyback converter. Design considerations and mathematical equations are presented. A 12V, 120W evaluation board is built to evaluate the performance improvement by the SG6203 synchronous rectifier controller for flyback converter.
2008-06-30 Applying SG5841 to control a flyback power supply
Fairchild Semiconductor Corp.'s application note 5841 describes a detailed design strategy for a high-efficiency, compact flyback converter using the SG5841 PWM controller IC. Design considerations, mathematical equations, and guidelines for a PCB layout are provided.
2015-03-06 TI introduces newest Fly-Buck converter for high-power apps
Texas Instruments introduced the industry's first 65V synchronous step-down DC-DC converter with Fly-Buck capability, which is ideal for industrial, smart grid and automotive applications
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