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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.
2013-10-18 Utilise fixed frequency flyback controller
The TEA1733 is a fixed-frequency flyback controller intended for power supplies up to 75 W for applications such as notebooks, printers and LCD monitors.
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.
2006-03-14 Synchronous rectifier IC boosts flyback, resonant half-bridge designs
International Rectifier touts its SmartRectifier chipset, which comprises the IR1167 with external HEXFET MOSFETs, as the first high-efficiency solution that's viable from the standpoint of technology and cost.
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.
2007-04-02 STLC3075 very low single supply SLIC for WLL application in flyback configuration
The STLC3075 is a SLIC device specially designed for WLL (Wireless Local Loop) and ISDN terminal adapters. This document contains a description of the device functions in flyback configuration, and provides some application hints. The device data sheet is an essential complement to this application note, providing important reference information that will simplify understanding of the content.
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.
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.
2007-02-05 PWM controller simplifies flyback power supplies
Linear Technology has introduced the LTC3805, a current mode, programmable frequency PWM controller that reduces the size and complexity of flyback power supplies.
2014-09-05 Power tip: How to get more power from a flyback
Interleaving a flyback allows you to save cost by using fewer parts or to reduce the ripple voltage of the power supply. Plus, it raises the effective switching frequency of the power supply.
2014-02-12 Power tip: Boost discontinuous flyback efficiency
Implementation in a discontinuous flyback is a significant challenge compared with a continuous flyback.
2006-05-17 New flyback controller needs no optoisolator
Linear Technology Corp. introduced the LT3837, a synchronous flyback DC/DC controller for 10W to 60W isolated power supplies.
2000-06-15 Minimize power losses of lightly loaded flyback converters with the L5991 PWM controller
This application note deals with the L5991, a PWM controller that is particularly suitable for SMPS and is optimized for flyback topology to reduce power losses. It describes the operation of the device's "Standby function" in detail and states several relationships useful for the design.
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.
2008-06-30 Low-cost, green-mode PWM controller for flyback converters
The SG6860 controller is a highly integrated PWM controller that is designed to meet the low standby-power needs of 1ow-power SMPS. The proprietary green-mode function provides off-time modulation to linearly decrease switching frequency under light-load conditions.
2014-08-12 Low cost flyback power supply design
This application note discusses designing an integrated and low-cost power supply for the most commonly used inverter application that runs from 12-V battery.
2011-03-23 LM3444-230VAC, 8W isolated flyback LED driver
This demonstration board highlights the performance of a LM3444 based flyback LED driver solution that can be used to power a single LED string.
2011-03-21 LM3444-120VAC, 8W isolated flyback LED driver
This demonstration board highlights the performance of a LM3444 based flyback LED driver solution that can be used to power a single LED string.
2015-11-04 How to maximise efficiency in flyback power supplies
Implementing synchronous rectifier with ideal diode emulators control is an easy and low-cost way to significantly reduce overall power loss.
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.
2005-03-03 Flyback transformers drive loads up to 2,000Vdc
Datatronics says its new series of high-voltage flyback transformers provides a cost-effective means of driving high impedance loads that require up to 2,000Vdc.
2011-06-20 Flyback transformer design for UCC28600
Know the considerations to be made when using a flyback transformer for green-mode controller design,
2003-06-20 Flyback Transformer Design for the IRIS40XX Series
This application note discusses flyback transformer design using the IRIS40xx controller, focusing on its operation in a discontinuous mode.
2012-08-31 Flyback regulator eases DC/DC converter design
Linear Tech's LT8300 operates from 6-100V input voltage, has a 260mA, 150V power switch and delivers up to 2W of output power, geared for a variety of telecom, datacom, automotive, industrial and medical applications.
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.
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