by Jerry Hovdestad, Director COTS Engineering, Behlman Electronics To an engineer, power management is also thermal management. Excess heat generated by power systems places additional burdens on their cooling technology. Even the most efficient system will have performance and reliability issues if served by an inefficient cooling method. Power and heat are two sides of […]
DC-DC
Buck dc/dc converter provides 8 A for four outputs
Linear Technology Corporation announces the LTC3371, a highly integrated general-purpose power management solution for systems requiring multiple low voltage power supplies. The device features four synchronous buck converters, each powered from independent 2.25V to 5.5V inputs, and each configurable to share up to four of eight available 1A power stages. With eight unique output current […]
20-A step-down regulator optimized for low V IN/low V OUT
Linear Technology Corporation introduces the LTM4639, a 20A DC/DC step-down µModule® (micromodule) regulator capable of converting 2.5V to 7V main-power system rails to point-of-load voltages as low as 0.6V with optimum efficiency. In complex rack-mount systems, improved voltage conversion efficiency results in savings in energy consumption, thermal management and equipment size. Applications include cloud-based equipment […]
Programmable power supply series extends to 800W 650V output
TDK Corporation announces the introduction of 800W high voltage models to TDK-Lambda’s Z+ series of programmable DC power supplies. The series is now available with output voltages of -10, 0-20, 0-36, 0-60, 0-160, 0-320 and 0-650VDC with output powers of 200 to 800W. These higher voltages address the requirements for applications such as deposition processes, […]
Choosing a brushless DC motor driver
By Chris Francis Brushless DC motors (BLDC motors) are quite different to drive compared to brushed DC motors. With a brushed DC motor you simply apply a voltage or pulse width modulated voltage and the motor will start turning (if possible) and increase speed with reducing torque until the torque/speed match the load. A brushless […]
High-power rack delivers 1,500 V, 3,060 A
Keysight Technologies, Inc. introduced a rack system for high-power DC applications. The prewired N8900 Series rack system reduces system complexity and saves time for engineers designing and implementing high-power systems for challenging applications requiring up to 90 kW. When engineers design high-power racks, they face system design, debugging and safety challenges associated with high voltages. […]
Converters work with IGBT gate drives
Murata has announced the MGJ3 and MGJ6 series of configurable output voltage, high isolation DC-DC converters from Murata Power Solutions. These 3 Watt and 6 Watt surface mounted devices are optimized for use as high-side and low-side gate drivers in IGBT and MOSFET bridge circuit designs. Providing triple output voltages of +15, +5 and +5 […]
DC/DC converter handles cold-crank auto apps
Linear Technology Corporation announces the LT8610AC, a 3.5A, 42V input capable synchronous step-down switching regulator. Synchronous rectification delivers efficiency as high as 96%, while Burst Mode® operation keeps quiescent current under 2.5µA in no-load standby conditions. The device’s 3.0V to 42V input voltage range makes it ideal for automotive applications, which must regulate through cold-crank/stop-start […]
Power supplies handle MCUs in auto systems
ROHM Semiconductor has recently announced the development of system power supplies optimized for high-performance microcontrollers in a variety of automotive systems, from electronic power steering to fuel injection, including HEVs and EVs. The newly developed BD39001EKV-C utilizes a proprietary boost-buck switching method that ensures stable voltage supply, even when the battery voltage drops during start–stop […]
5W regulated single output DC-DC converter ~SPB05 series
MEAN WELL is pleased to unveil the 5W regulated single output DC-DC converter~SPB05 series, so as to meet the increasing demand for system miniaturization. This series is in SIP (single-in-line) package form and adopts the plastic case of the 3W SPB03(0.86”x0.36”x0.44”) to 5W output. The power density is up to 36.7 W/in3; nevertheless, the volume […]
