15 November 2017
Power Electronics / Power Management
Traco Power has added the new TEQ 300WIR to its power ‘railway’ category. With the extra wide input voltage ranges of 18 - 75 and 43 - 110 V d.c. the nominal input voltages of 48, 72, 96 and 110 V d.c. can be applied while a ±40% deviation of nominal input voltage does not affect the function. This means that the converters can handle brownouts and transient voltage defined by EN50155 not only for a limited duration but permanently.
The TEQ 300WIR models are equipped with internal filters to conform to demanding electromagnetic interference requirements. The constraints selected for electromagnetic field immunity, fast transient burst immunity and surge immunity correspond with the highest level for railway rolling stock equipment under performance criteria A. The converters are also designed and approved to endure shock and vibration requirements for rolling stock equipment according to EN 61373. Solid flanges allow for an easy, strong fixation. The modules are equipped with vibration proof spring clamps for secure electrical connection.
With excellent efficiency and using the highest-grade components, they reliably operate in an environmental temperature range of -40°C to +80°C. They pass cyclic damp heat and dry heat tests without developing any physical damage, and are qualified to the fire behaviour of components according to EN 45545-2.
The TEQ 300WIR models provide reinforced I/O insulation for an isolation voltage of 3000 V a.c. They are available with output voltages of 12, 15, 24, 28 and 48 V d.c. which are adjustable by ±20%. The output characteristic is constant voltage to constant current which means that the output voltage is stable up to a load current of about 110% of nominal current. At this point the voltage will be decreased while the current stays stable. This feature is useful to start motors, charge lead acid batteries or pull-up capacitors of unlimited capacitance. Protection against overheating, overload, short circuit, reversed input, over-voltage and input under-voltage, are other features that make these converters reliable and failsafe.
Sense line inputs are available to compensate the voltage drop on long wires to the load and the converters have a load share function for parallel operation of up to three units or for true redundant operation.
Analysis of switch-mode power supply: inductor violations Altron Arrow
Editor's Choice Power Electronics / Power Management
Common switch-mode power supply (SMPS) design errors are discussed, and their appropriate rectification is specified, with details on complications that arise with the power stage design of DC-DC switching regulators.
Read more...Compact PCB-mount SMPS RS South Africa
Power Electronics / Power Management
Traco Power’s 5W PCB-mount switch mode power supply (SMPS) offers high efficiency, and is well suited for a variety of applications in the automation, electronics, electrical and mechanical industries.
Read more...AC-DC brick PSU Conical Technologies
Power Electronics / Power Management
These PSUs have a typical efficiency of up to 92%, and a power factor value of up to 0,99. They are available in 12, 24, 28, 48 and 54 V output versions.
Read more...5 kW switching PSU range Conical Technologies
Power Electronics / Power Management
Mornsun has released a new switching power supply range, the LMF5000-25Bxx, which has a 5000 W capacity, and features universal AC input configurations.
Read more...Reliable charging range Current Automation
Power Electronics / Power Management
Whether you’re powering essential electronics, keeping emergency equipment operational, or maintaining the performance of critical machinery, the need for dependable charging solutions cannot be overstated.
Read more...Microchip expands its mSiC solutions EBV Electrolink
Power Electronics / Power Management
The highly integrated 3,3 kV XIFM plug-and-play digital gate driver is designed to work out-of-the-box with high-voltage SiC-based power modules to simplify and speed system integration.
Read more...Dual-port USB-C power delivery solution Altron Arrow
Power Electronics / Power Management
Infineon’s CYPD7272-68LQXQ is the tray packing option of the company’s dual-port USB-C power delivery solution and features an integrated dual-port USB-C PD + DC-DC controller.
Read more...Parallel redundancy power module Conical Technologies
Power Electronics / Power Management
The LIR40-40 is a wide input range DC-DC module, with a constant output of 48 V at a nominal output current of up to 40 A.
Read more...Motor protection relay front-end NewElec Pretoria
Power Electronics / Power Management
Newelec’s Motor Protection Relay front-end software isn’t just another tool, it’s a game changer that puts control firmly in your hands.
Read more...High-power three-phase supplies Current Automation
Power Electronics / Power Management
The units from Meanwell can either be supplied with a three-phase three-wire delta input of 196 to 305 V AC, or they can use a three-phase four-wire star connection of 340 to 530 V AC.
printer friendly version