New protectifiers by Diotec combine the low forward voltage drop of a Schottky diode with the robust reverse characteristic of a transient voltage suppressor (TVS).
The new devices are suitable for low-loss rectification in circuits with reverse over-voltage surges. Typical applications are output rectifiers in switched mode power supplies, free-wheeling diodes for motors and inductors or diodes for reverse polarity protection.
The TSK2520D2 is a 25 A/20 V device in a TO-263AB package, with a forward voltage of <0,55 V at 25 A and <0,45 V at 5 A. It is characterised up to 600 W reverse peak pulse power on a 10/1000 μs pulse; forward surges can be up to 300 A for 10 ms. The reverse recovery time is as low as that of a Schottky diode.
The KT20A150 is a 20 A/150 V rated part in a TO-220AC package. It has a maximum working voltage of 150 V and a VF of <0,98 V at 20 A and <0,85 V at 5 A. It is specified for 800 W reverse peak power on a 10/1000 μs pulse, and is suitable for rugged industrial environments. Reverse recovery time is <250 ns and as such it can be used in systems up to 40 kHz. A special feature of the KT20 series is that it comes in two versions, one with the anode connected to the heatsink, the other with the cathode connected to the heatsink.
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.
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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.
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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.
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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.
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