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What is a flyback transformer?
The flyback transformer (FBT), also called a line output transformer (LOPT), is a special transformer that is used to generate high voltage signals at a relatively high frequency. It was invented to control the horizontal movement of the electron beam in a cathode ray tube (CRT).
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2012-01-27 Signal chain basics: Using RS-232-to-RS-485 converters for industrial long-haul comm
Read about the use of RS-232-to-RS-485 converters in industrial data links requiring the transmission of RS-232 data over long distance, or between multiple RS-232 applications.
2009-06-12 Selecting MOSFETs for half-bridge resonant converters
This article studies the performance of a half-bridge LLC resonant DC/DC converter developed for use in an open-frame power supply.
2007-06-18 Select the best topology for WLED drive electronics
Designers attempting to collapse the electronics required to drive LEDs into the base of a light bulb face major challenges. This article discusses how to meet these challenges when replacing older lighting technology with LEDs.
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.
2007-08-07 Samsung plant accident sparks fears of ripple effect
The disrupted production lines at Samsung's Kiheung plant were those that produced most of the world's supply of DRAM and NAND flash chips, triggering fears of a ripple effect across the industry.
2012-04-19 Ruggedize USB connections for harsh environments
USB is not inherently rugged or reliable, but you can make it that way.
2008-07-23 RS-232 transceiver isolates data, power lines on chip
Analog Devices Inc. is expanding its family of interface products with what it claims to be the industry's first fully isolated single-package surface mount RS-232 transceiver with integrated DC/DC converter to supply isolated power.
2008-10-07 RMS detector touts excellent accuracy, linearity
Linear Technology introduces the LT5581, a broadband 6GHz RMS detector that features a 40dB dynamic range and a low operating supply current of 1.4mA.
2010-08-20 RMS detector delivers accurate RF power measurements
Linear Technology has announced the release of its LTC5587, a 40dB dynamic range 6GHz RMS detector integrated with a high sampling rate 12-bit serial A/D converter.
2008-05-22 RF power detector operates over wide frequency range
A new monolithic broadband, high performance logarithmic RF power detector from Linear Tech promises accurate RF power measurement over a wide frequency range.
2007-05-28 RF amplifier targets cable TV front-end apps
Anadigics Inc. has introduced its ABA3130 single-chip, low-noise, high linearity RF amplifier with integrated gain control, aimed at cable TV front-end applications.
2005-02-02 RF active mixers combine low power, high performance
Linear Tech's new RF Active Mixers feature low power and high performance, making them suitable for wireless infrastructure transceiver and portable radio apps.
2007-10-01 Researchers switch magnetic domains from hard to soft
Using a designer material with strong anisotropy, researchers have demonstrated how to switch magnetic domains from permanent to erasable by applying a longitudinal magnetic field to modulate the domain walls' strength.
2007-05-09 Research group demos the first controllably coupled qubits
NEC Corp., Japan Science and Technology Agency and the Institute of Physical and Chemical Research have demonstrated the world's first quantum bit (qubit) circuit that can control the coupling strength between qubits.
2006-06-01 Reference design targets PoE powered devices
Power Integrations unrolled a reference design to help speed prototyping and delivery of standards-compliant PoE PDs.
2011-10-06 Reference design geared for home automation
SmartPulse IP gateway reference design enables home automation wireless sensor for remote management.
2006-10-13 Ref design kit enables supplies with high surge protection
The new reference design kit from Power Integrations features a constant-voltage charger circuit capable of withstanding 10kV common-mode or 2kV differential-mode surges.
2007-01-31 Quadrature modulator enables high-performance GSM base stations
A new high-performance quadrature modulator from Linear Technology is optimized for 850MHz to 965MHz GSM, CDMA2000, ISM and RFID modulator applications.
2012-06-21 PWM controllers up SMPS reliability, cut board space
Fairchild Semiconductor's FSL206MRx integrated PWM controllers integrate an internal regulator that eliminates the need for an auxiliary bias winding.
2005-03-11 PWM controllers provide flexibility
National rolled out what it bills as the industry's first 100V dual interleaved pulse-width modulation controllers for conventional single-ended and active-clamp reset topologies.
2002-11-20 PWM controllers help meet standby power requirements
ON Semiconductor's NCP1200A and NCP1203 PWM current-mode controllers enable power supply designers to meet standby power regulations.
2004-10-01 PWM controller uses only one primary side MOSFET
The latest current mode PWM controller from Linear Technology uses only one primary side MOSFET.
2008-05-30 PWM controller improves up to 97% energy efficiency
Texas Instruments Inc. has released a power supply controller for unregulated output voltages that achieves up to 97 percent system efficiency in an intermediate bus architecture.
2008-09-26 PWM controller ensures better standby mode capacity
STMicroelectronics has released the L6591 PWM controller, which the company claimed is the first integrated controller intended for zero-voltage switching asymmetrical half-bridge converters.
2011-05-04 PSE PoE reduces board space, cuts costs
Linear Technology has introduced an isolated 12-port power source equipment controller chipset designed for use in Power over Ethernet (PoE) systems.
2007-03-02 Printer power supply design cuts power draw
ON Semiconductor's latest GreenPoint reference design for 40W power supplies used in desktop printers provide active-mode energy efficiency above 83 percent.
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.
2008-02-05 Power-supply optocoupler basics
Here's the basics on today's LED/photodetector isolators and what you need to know to apply them to your system.
2007-03-07 Power-conversion IC handles 127W peak load
Power Integrations Inc. has announced the release of PeakSwitch PKS607, an integrated power-conversion IC capable of handling peak demand of up to 127W.
2014-04-30 Power tip: Weighted feedback in multiple-output supplies
Here's a look at weighting the feedback divider in multi-output switching power supplies.
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