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Mitsubishi Develops High-power-density Converters

Mitsubishi Electric Develops Technology for High-power-density Converters with Embedded Components.Mitsubishi Electric Corporation announced today that it has developed a new technology to integrate power devices, passives, sensors and other embedded components in the same substrate, which the company deployed in a 100kW (continuous) bidirectional DC-DC converter to achieve what is believed to be the world's most power-dense* power converter, rated at 136kW/L, or eight times more power dense than conventional converters. The new technology is expected to contribute to the downsizing of power electronics equipment.

Published on 05/11/20 Read Article
Dynex Gen5 M1 Trench Gate IGBT Modules

1.2kV & 1.7kV Gen5 Trench Gate M1 IGBT Modules The DIM450M1HS12-PB500, DIM600M1HS12-PC500 and DIM450M1HS17-PA500 are trench, insulated gate bipolar transistor (IGBT) modules with enhanced field stop and implantation technology. The IGBT modules have a wide reverse bias safe operating area (RBSOA) plus 10μs short circuit withstand. The M1 modules are designed to scale 152 x 62 x 11mm, and weigh 345g. The modules have a chip Junction temperature operating range from -40°C to a maximum of 150°C. Suitable for applications within the electric vehicle, industrial, renewable and traction markets. The modules incorporate an electrically isolated base plate and low inductance construction enabling circuit designers to optimize circuit layouts and utilize grounded heat sinks for safety.

Published on 04/27/20 Read Article
POWEREX Full SiC & Hybrid SiC IGBTs

Large bandgap energy and high field breakdown are two primary characteristics of silicon carbide (SiC) which have been leveraged to create a new generation of power semiconductors with zero reverse recovery charge, significantly lower switching losses and the opportunity for higher temperature operation.

Published on 04/20/20 Read Article
Wakefield-Vette adds DC Fans to product line

Wakefield-Vette produces a line of DC axial fans used on fan heat sinks which are generally used on heatsinks to support BGAs, VGAs and CPU coolers or as chassis fans. The fans range in size from 30x10mm to 120x38mm with the most common sizes in between. The fans are available in 12 volt as the most common, but other voltages (5, 24 and 48) are possible upon request. The standard configurations include 2 wire, 3 wire (tach) or 4 wire (PWM) and can be customized to support any range of connectors

Published on 04/08/20 Read Article
Darrah is an essential supplier and manufacturer

During this time, essential businesses are permitted to stay open. Darrah Electric Company is an essential supplier and critical manufacturer as defined by the U.S. Department of Homeland Security CISA memo dated March 19, 2020. As a business that supports the manufacturing of critical infrastructure; i.e., transportation systems, control systems, power supplies, information technology, communications, financial sectors, chemical production, defense industrial base, and energy in the US, our products support the safe and efficient flow of goods and services essential to slow down the COVID-19 pandemic. Therefore, we remain open for business.

Published on 03/24/20 Read Article
LEM HMSR SERIES Miniature current sensor.

LEM has expanded its range of miniature, integrated circuit sensors range for AC and DC isolated-current measurement with the introduction of the HMSR series. Despite their small size, the components can handle overload current bursts of up to 20 kA (8-20 us surge test profile), such as those that occur in photovoltaics applications while still providing a reinforced isolation. Products in the series are designed to measure currents of up to 2.5 times their nominal ratings of 6 A, 8 A, 10 A, 15 A, 20 A or 30 A.

Published on 03/19/20 Read Article
ABB Fast recovery diodes

Diodes can be subdivided into two main classes: Rectifier diodes (standard recovery) and fast diodes. Rectifier diodes are generally used for conversion of AC (alternating current) to DC (direct current). While optimized for low conduction losses, Rectifier diodes withstand only moderate dynamic stress in transition from conducting to the blocking state.

Published on 01/21/20 Read Article
LEM ARU Series

LEM's new Unique, IP68, ruggedized outdoor flexible split-core AC current sensor implementing high accuracy Rogowski Coil technology.

Published on 01/08/20 Read Article
Ethics and Business Conduct

Ethics programs aim to prevent and detect criminal conduct, reinforcing compliance with legal requirements. They also foster an organizational culture in which employees feel empowered to ‘do the right thing,’ even when laws and regulations don’t provide clear guidance.

Published on 12/23/19 Read Article
Mitsubishi Electric's Diode Modules

Mitsubishi Electric offers general rectifying diode modules that rectify commercial frequencies and high frequency diode modules for freewheel diodes in inverter circuits and for high-speed switching on a surge voltage absorbing circuit (snubber). The main switching devices of an inverter have changed from bipolar transistors to high-speed MOS gate devices, such as IGBT. The requirements of radio noise regulations have also increased the importance of not just reverse recovery characteristics, but also software recovery characteristics.

Published on 12/12/19 Read Article