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2004-12-07 ST switch IC tailored for AC/DC converters
ST rolled out a primary-side switch IC for AC/DC converters, designed for DVD players, LCD monitors and STBs.
2004-12-02 Primary-side switch enhances off-line designs
ST's newest primary-side switch touts an extended VDD range of 9V to 18V versus 9V to 14.5V for its VIPer53.
2002-10-15 Fairchild switch fits flyback power supply apps
The FS8S0765RC off-line power switch integrates an avalanche-rated SenseFET for use in CRT monitor flyback power supplies
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
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
2010-05-13 Rectification drivers achieve up to 500kHz
ON Semiconductor has launched the NCP4303A and NCP4303B full-featured synchronous rectification controller and driver ICs targeted at use in SMPS.
2010-11-04 IMI subsidiary gets US patent for power converter
A dual-switch forward power converter that uses a self-coupled driver and claims higher efficiency, lower part count and component cost has been granted a U.S. patent
2006-11-15 Fairchild's UltraFETs come in ultracompact MLP
Fairchild Semiconductor has expanded its power switch portfolio with the addition of 100-, 200- and 220V N-channel UltraFET devices available in ultracompact (3-by-3mm) MLP
2009-03-03 Toshiba expands MOSFET lines
Toshiba America Electronic Components Inc. has expanded its lineup of MOSFETs with a selection of higher power 40V, 60V and 80V devices well suited for use in the primary side switch of an isolated DC/DC bus converter in mobile communications applications.
2012-08-08 TI adapter power ICs enable universal charging
The UCC28700 primary-side controllers claim to enable smaller cubes, wireless power charging stations and other AC-powered equipment to speed adoption of universal charging
2010-08-05 Switching regulator speeds DC/DC converter design
The isolated monolithic flyback switching regulator cuts the opto-isolator, third winding or signal transformer from the design since the output voltage is sensed from the primary-side flyback signal
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
2015-03-10 TI delivers zero standby power controller chipset
The UCC28730 and UCC24650 chipset supports 5V to 24V output voltages and helps designers create smaller, more efficient power supplies for TVs, home appliances, AC adapters, HVAC and more.
2014-06-11 Techniques for enabling dimmable LED bulbs
Many LED lamps are advertised as dimmable, however in reality the performance of many of them is unimpressive with varying results depending on the dimmer used and loading of the circuit.
2008-08-01 Scrutinizing power-supply stability in a multiloop system
Analyzing a power system's stability begins with a look at the open-loop Bode plot of a buck or flyback converter's power stage. From this plot, the designer extracts phase and gain data for the frequency range of interest.
2005-12-21 Power MOSFETs offers 30% part count reduction
IR's new 75V and 100V HEXFET power MOSFETs enable a part count reduction of 30% or more in secondary synchronous rectification, full-bridge topology power supplies.
2011-05-05 Power controller device cuts wasted power
iWatt releases the iW1700 Zero Power AC/DC Digital PWM Controller that eliminates wasted power and costs in offline chargers and adapters.
2014-11-19 Off-line switching power supply eliminates optocouplers
The InnoSwitch family from Power Integrations is geared for smart mobile device chargers and adapters for various applications that include STBs, networking equipment and computer peripherals.
2006-09-01 New cPCIBPMC versions feature extended temperature
Responding to customer request, Dynamic Engineering said it has developed two extended temperature versions of its cPCIBPMC design.
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.
2012-09-07 Implement digital power control using LLC resonant converters
Read about a digital power control implementation using line level control resonant converters based on a flexible 32bit microcontroller.
2007-12-18 How to build efficient power supplies
A solution to one aspect of PoE is discussed utilizing the ON Semiconductor NCP1031 series of monolithic, high-voltage switching regulators with internal MOSFET.
2012-05-10 Guard PoE systems from lightning surges, electrical hazards
Read about evidence-based design methods that protect PoE equipment from various electrical hazards.
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.
2015-12-14 Get 500W in converter with GaN (Part 2)
In Part 2, we tackle the key details of physical and electrical design, including layout, key waveforms and losses. We also summarise key potential improvements.
2015-12-07 Get 500W in converter with GaN (Part 1)
Part 1 covers brick technology, a comparison of eGaN FETs to silicon MOSFETS, a basic overview of the GaN-based eighth-brick design, and experimental results.
2011-08-12 Forward converter includes active clamp reset
The LTC3765 and LTC3766 synchronous forward converter chipset from Linear Technology comes with active clamp reset and Direct Flux Limit.
2008-12-04 Flyback controller handles up to 1,000V charging
Linear Technology Corp. has released the LT3751 flyback controller designed to rapidly charge large capacitors to voltages as high as 1000V.
2006-03-06 Flyback controller can rapidly charge large capacitors to 1,000V
Linear Technology unveiled a flyback controller designed to rapidly charge large capacitors to voltages as high as 1,000V.
2008-03-15 Design considerations for three-phase power factor correction
The need for the current waveform to track the voltage on a three-phase power system leads to a second set of requirements, in addition to those for a single-phase power factor correction system.
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