Industrial grade robust inverter build – I have done a lot of research online about IGBTs, gate drivers, blown up many IR2110s, studied PCB layout considerations, OC/SC protection, current sensors and so on but none of my designs has ever lasted for long when loaded by an actual motor. The waveforms were perfect, but smoke was […]
MOSFETS
Using PowerPhase MOSFETs in Synchronous Buck VR Applications
Most of voltage regulators are still using discrete solutions like SO8-FL 5 x 6 mm2 package. With advancement of Si technology and packaging, MOSFET can achieve a switching transition of less than 10nS, which is equivalent to di/dt of more than 1A/nS New PowerPhase packages enable faster switching by minimizing package parasitic inductances. While the […]
Surface-mount SiC MOSFET for auxiliary power circuits
Wolfspeed, A Cree Company, continues its innovation in silicon carbide (SiC) power device technology and packaging with the introduction of the industry’s first 1700V SiC MOSFET offered in an optimized surface mount package designed for commercial use in auxiliary power supplies in high voltage power inverter systems. The higher blocking voltage enables design engineers to […]
Hot Swap controller with dual MOSFET drive enables 100-A designs
Linear Technology Corporation introduces the LTC4282, an energy monitoring Hot Swap controller with dual MOSFET drive to enable 100A and higher current board designs. The LTC4282 ensures safe board insertion and removal from live 2.9V to 33V backplanes by controlling external N-channel MOSFETs to gently power up capacitors, avoiding sparks, connector damage and system glitches. […]
Top power electronics threads on EDAboard.com – September
Issues with TPS2811 MOSFET driver for IR530 in buck SMPS design – I’m trying to build an SMPS but want to simulate it on Multisim first before I buy all the components. The buck has a 6.3V dc input and will have a 5V dc output at 2 amps. I’ve designed a buck converter and it seems […]
Fast half-bridge gate driver handles 600-V MOSFETs, IGBTs
Texas Instruments (TI) introduced the industry’s fastest half-bridge gate driver for discrete power MOSFETs and IGBTs that operate up to 600 V. The UCC27714 high-side, low-side driver with 4-A source and 4-A sink current capability reduces component footprint by 50 percent, enabling higher power density in high-frequency, offline AC/DC power supplies used in server, telecom […]
DC-DC converter handbook covers GaN transistors
The demand for information is growing at unprecedented rates and society’s insatiable appetite for communication, computing and downloading, is driving this demand. With emerging technologies, such as, cloud computing and the internet of things, not to mention the 300 hours of video being loaded to YouTube every minute, this trend for more and faster access […]
Diodes Incorporated enables cost-effective headset detection with low power IC in miniature package
The AZV5001 headset detection IC introduced by Diodes Incorporated is targeted at cost- and power-sensitive consumer electronics such as mobile phones, tablet computers and media players. The integration of a comparator, OR gate and N‑channel MOSFET into a miniature package enables the connection of a headset with microphone to be quickly and simply detected. The […]
Ultra low power switching regulators
For micropower applications there are some interesting new devices around for helping power the circuitry. I am not thinking here about energy harvesting applications but low power battery operated devices where you don’t want the battery to go flat quickly when in standby but still need some regulated power to wake up a microcontroller, for […]
Top power electronics threads on EDAboard.com – August
Phase shift full-bridge SMPS is massively over-hyped? – The Phase Shift Full Bridge (PSFB) converter is a hoax. The LTspice simulation (Editor’s note: see post for file) of a “plain” full-bridge SMPS bears this out. PSFB claims to be able to reduce switching losses compared to the “plain” full-bridge SMPS. However, the PSFB does have turn-OFF switching losses, just […]
