ROHM has recently announced the availability of isolated flyback-type DC/DC converter control ICs for inverters in high power industrial equipment such as FA/solar inverters and power storage systems. Isolation is almost always built into electronic equipment to provide protection against shock and damage. High voltage, high power industrial applications (including power storage systems and solar […]
DC-DC
Synchronous Rail-to-Rail Step-Down Regulator Sinks/Sources ±5 A
Linear Tech Corporation announces the LTC3623, a ±5A high efficiency, current mode synchronous buck regulator that is adjustable from 14.5V down to 0V output with a single resistor. Proven on Linear Technology’s prior linear regulators and switching regulators, this innovative architecture uses a 50µA current reference, combined with a single resistor, to set the output […]
Eight-channel configurable 1-A buck DC/DC converters for multi-rail systems
Linear Technology Corporation announces the LTC3374A, a highly integrated general-purpose power management solution for systems requiring multiple low voltage power supplies. The device can be configured to provide 2 to 8 independent regulated outputs with 15 possible output current configurations. Such flexibility makes the LTC3374A ideally suited for a wide variety of multichannel applications, including […]
Top power electronics threads on EDAboard.com – July
(editor’s note: Intrigued by these power electronics problems? Have a question or optional solution? Then click the “Read more” link and follow the conversation on EDAboard.com or log in to EDAboard and participate in the forum thread.) 12 V DC to 115 V AC sine wave inverter – I am making a 12 V DC to […]
200-A, 28-Vdc contactors for aerospace and defense applications
TE Connectivity Ltd. is releasing its K200 series contactors, a small, lightweight, and efficient 200-Amp 28 VDC power switching solution for stringent 28 V DC aerospace and defense applications. The single pole, single throw, normally open contactors are designed for use in DC power distribution systems in commercial and military aircraft and ground vehicles. Aerospace power distribution […]
DC/DC converter targets PV applications
PVxx-29Bxx is a high-reliability DC-DC converter with 200-1.5-kVdc input, 4-kVac isolation and built-in multi-protection functions. The converter can be widely used in PV generation and high-voltage inverter application as a stable and reliable power supply. It features an industrial-grade operating temperature of -40℃~+70℃ as well as input under-voltage protection, reverse input protection,and output short circuit, […]
GaN FET driver operates up to 33 MHz and handles voltages up to 80V
Peregrine Semiconductor Corp., founder of RF SOI (silicon on insulator) and pioneer of advanced RF solutions, introduces the word’s fastest gallium nitride (GaN) field-effect transistor (FET) driver, the UltraCMOS PE29100. Built on Peregrine’s UltraCMOS technology, this new GaN driver empowers design engineers to extract the full performance and speed advantages from GaN transistors. Designed to […]
Automatic decay scheme for stepper motor current regulation
by Rakesh Raja and Sudhir Nagaraj || Closed-loop current regulation in stepper motors plays a major role in determining the accuracy and smoothness of motor motion. The scheme of current control also determines the power efficiency of the motor drive system. A typical pulse-width modulation (PWM) control loop used today has a suite of fixed-decay […]
Top power electronics threads on EDABoard.com – June
(editor’s note: Intrigued by the problem? Have a question or optional solution? Then click the “Read more” link and follow the conversation on EDAboard.com or log in to EDAboard and participate in the forum thread.) Resistor mounting conditions for full power rating at 70degC ambient? – For the PF2512FKF7W0R007L (7mΩ) 2512 SMT resistor, what is […]
Tiny DIP-16 Package holds
8-W Encapsulated DC-DC Converter
MINMAX is proud to announce the new MDW08 series of 8W Isolated/Regulated DC-DC Converters in the smallest 16 pin DIP package measuring only 0.94 by 0.54 by 0.31 in. where space is critical. The MDW08 family of high-density DC-DC converters consists of 21 models offering 9-18/18-36/36-75 VDC Input Ranges with single and dual output models ranging 3.3 […]