Power
SiC power module boosts inverter efficiency
A 1.2kV all-SIC six pack module enables an increase in the power rating of inverters to 50 per cent while reducing power losses by 50 per cent to increase efficiency by 5 per cent. The device is based on Cree’s C2M SiC MOSFET and Z-Rec SiC Schottky diode technology. The all-SiC 1.2 kV, 20A six-pack features the industry’s lowest switching losses due to the zero turn-off tail current in the MOSFET and the zero reverse recovery current ...
Battery charger features multi-chemistry operation
Embedded automotive and industrial systems, backup battery charging, energy harvesting and thin film battery products are typical applications for Linear Technology’s LTC4079 60V, constant-current/constant-voltage 250mA multi-chemistry battery charger. The device’s low quiescent current linear topology offers a simple inductorless design and accepts a wide 2.7V to 60V input voltage range.
Inductors enable longer mobile device display operation
Suitable for power supply circuits of mobile device displays, the GLCLK and GLCLM power inductors have been released by ALPS Green Devices. The power inductors are suitable for mobile devices including smartphones, tablets and digital cameras. As displays become larger and CPUs faster, mobile devices are expected to consume more electricity.
Whitepaper explores power module redundancy
VadaTech has announced the release of a whitepaper on power module redundancy. MicroTCA (μTCA) is designed to build flexible and reliable (high availability) embedded systems. A μTCA system consists of up to 12 Advanced Mezzanine Cards (AMC), two cooling units, two MicroTCA Carrier Hub (MCH) and four power modules.
Ultra-fast Trench IGBTs are optimised for welding
Providing extremely low conduction and switching losses, International Rectifier's IR66xx series of IGBTs are optimised for welding applications. The high performance 600V ultra-fast Trench-gate IGBTs feature a soft recovery low Qrr diode and ultra-fast switching of 8-30KHz with 5µs short circuit rating.
Regulator corrects voltage drop regardless of load current
Designed to power 5V USB applications, the LT3697 35V input capable, step-down switching regulator has been released by Linear Technology. With 60V transient protection, the regulator uses programmable cable drop compensation to deliver 5V regulation at 2.5A to a remote USB port.
Synchronous buck regulators deliver 3A for FPGAs
Rutronik is selling the new ISL85003 and ISL85003A 3 Amp synchronous buck regulators from Intersil. These integrated high-side and low-side MOSFETs support the auxiliary rails on the latest FPGA platforms for the most demanding infrastructure and industrial applications. The new ISL85003/3A buck regulators support an input voltage range of 4.5V to 18V while delivering very efficient and continuous 3A current for the latest generation of FPGAs fro...
Power supplies overcome harsh environments
In order to meet demand for power supplies that are reliable in harsh environments, MEAN WELL has introduced es the 600W power supply ~ HEP-600 series, and the charger unit ~ HEP-600C series. These two series employ the latest high efficiency circuit design that the working efficiency is up to 96% for HEP-600 and 95.5% for HEP-600C.
Automotive-qualified MOSFETs deliver 5.9mΩ RDS(on)
Based on the company’s most advanced COOLiRFET 40V trench technology, International Rectifier has announced two 40V automotive-qualified power MOSFETs. The AUIRFN8458 and AUIRFN8459 deliver benchmark on-state resistance (Rds(on)) for automotive applications such as pump motor control and automotive body control, which require high current performance from a compact device.
Commutation encoder reduces assembly time on BLDC Motors
A next-generation modular encoder series is now available from CUI Devices. The AMT31 series, using a capacitive code generation system coupled with a proprietary ASIC, generates standard U/V/W commutation signals for vectoring current to brushless motors. The technology employed allows the device to be particularly well suited to brushless dc motor applications subject to vibration and contaminants.