1 August 2019
Power Electronics / Power Management
XP Power has announced two new ranges of AC-DC power supplies that provide BF class insulation for healthcare applications where ehnanced EMC performance is a key requirement.
The PBR500 and PBR650 series offer power levels up to 500 W and 650 W, respectively. Both series accept a very wide, universal input range of 80 V – 264 V a.c. at 47 Hz to 63 Hz, and offer a total of eight single-output voltages (12 V, 15 V, 18 V, 24 V, 28 V, 36 V, 48 V and 57 V), giving system designers the flexibility to cover many applications with the same series.
Both series offer efficiencies of 90%, reducing the heat generated during operation and prolonging their lifetime. The PBR500 is available in two formats: the U-channel format provides 350 – 400 W when convection cooled and 450 – 500 W with external forced air cooling. The covered version, including a variable-speed integral cooling fan for low audible noise, provides a complete 450 – 500 W solution. The PBR650 provides 600 – 650 W in an enclosed supply, also with a variable-speed integral fan with low audible noise.
The products have very low earth and patient leakage currents and provide 2 x MOPP from input to output and 1 x MOPP from both input to ground and output to ground. Input-to-output isolation is rated at 4000 V a.c. with input-to-ground and output-to-ground isolation rated at 1500 V a.c. Both conducted and radiated emissions are class B and both series are compliant with IEC/ES/EN 60601-1 edition 3.1 and 60601-1-2 edition 4.
Both series include a 5 V standby supply, over-voltage and over-current protection, remote sense and thermal shutdown. Also included is an ‘AC OK’ signal and remote on/off control. The U-channel version of the PBR500 also provides a 12 V / 0,3 A output suitable for powering system cooling fans.
For more information contact Vepac Electronics, +27 11 454 8053, [email protected]
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...High-speed AWG generates up to 20 sine waves Vepac Electronics
Test & Measurement
Spectrum Instrumentation has released a new firmware option for its range of versatile 16-bit Arbitrary Waveform Generators, with sampling rates up to 1,25 GS/s and bandwidths up to 400 MHz.
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.