Power

Lithium-ion batteries’ price and performance are compelling reasons for use in portable equipment, but their charge and discharge must be controlled with a battery management system, advises John Carpenter of Qorvo. Rechargeable battery chemistries were used in the first surge of electric vehicles (EVs) in the 19th century, but for portable equipment they are too bulky, while alternatives such as ...

PCIM Europe 2023 (9-11 May) reports a record-breaking exhibition area (30,000m²) and number of presentations (400 oral presentations and poster sessions) and keynotes relating to sustainability, says Caroline Hayes. All three keynotes address sustainability. Franz Musil, Fronius International’s power electronics engineer will present ‘How life cycle analyses are influencing power electronics converter design’, looking at the holistic evaluation of the ...

TDK-Lambda has introduced a series of rugged non-isolated 300W buck-boost dc-dc converters. The RGC series has a 9 to 53V imput range and adjustable output voltages of 9.6 to 48V (8Amax), or 5 to 28V (12.5Amax), depending on version. The idea is to cover 12, 18, 24, 36 and 48V batteries and power sources. Remote shut-down reduces input current to ...

Liberating and entertaining, mobile communications have changed the way of life for the majority of the world’s population, but does faster connectivity need to be at a cost to the planet? Dib Nath, of Advanced Energy, thinks not. Mobile communications have changed the way we live. Advances in 4G LTE have brought mobile broadband and use cases such as gaming, ...

Kyocera AVX has added four and five position options to its 5.6mm tall 9176-700 series of insulation displacement wire-to-PCB connectors. The connectors are soldered to the PCB in a tall state then, to terminate, insulated wires are inserted and the top of the connector is permanently pushed down to its final height. All four or five wires have to be ...

Power supply component failures are perhaps the most common malfunctions affecting electronic devices. This is due to several reasons. First of all, the systems supplying current to the rest of the circuit are directly exposed to all kinds of input interferences – voltage surges, power shortage, etc. Another reason is the use of poor quality components in stabilizers and converters ...

Anglia Components has signed a distribution agreement with GaN-based power management specialist,  EPC (Efficient Power Conversion), covering the UK and Ireland. EPC’s enhancement mode GaN (eGaN) FETs and ICs will be part of Anglia‘s portfolio, which includes mainstream power technologies, including silicon mosfet and SiC as well as GaN.  The distributor said that the new signing enhances its range particularly ...

San Jose based Pre-Switch is reporting 98.5% efficiency at 5% load from its 800Vin ‘CleanWave2’ prototype inverter. Peak efficiency is 99.57%. It is a 100kHz forced-resonant, soft-switching inverter, controlled by an AI algorithm (more on the technology here). “Over a year ago we announced peak efficiency of over 99%. Since that time, we have been improving our AI algorithm to ...

Omron is aiming to replace conventional contactors with its most powerful ac PCB relay yet: G9KA-1A-E, which handles up to 1kVac and carries up to 300A. Sitting on a 51 x 51mm footprint, the relay is 54.5mm tall and weighs ~235g. The contacts are cadmium-free silver alloy and offer 200μΩ on-resistance (at 200A). Maximum timing is 30ms make and 10ms ...

Ideal Power has launched the first commercial version of its novel bi-directional semiconductor power switch, a multi-die module rated at 1,200V 100A (25°C, 50A 100°C) aimed at solid-state circuit breakers (SSCBs) and matrix converters. Updated below to include driving requirements Called IPAM01210C10, “the power module was designed specifically to enable SSCBs to deliver very low conduction losses, while operating orders ...