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600-V FRED Rectifiers Cut Losses In PFC Stages
From Vishay Intertechnology, four 600-V FRED Pt Hyperfast rectifiers reduce switching losses in high-efficiency power factor correction (PFC) and switch-mode power supply applications with their extremely fast and soft reverse-recovery times, together with low forward voltage drop. Device type: 600-V FRED Pt Hyperfast rectifiers (se...
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High-voltage Rectifiers for Fast Switching
Capable of switching at faster than 400 ns at up to 5000 V, the HV1-HV5 axial-leaded diodes expand Diotec Semiconductor’s range of high-voltage rectifiers. The parts are offering blocking voltages of 1.5 kV, 2 kV, 3 kV and 5 kV in the DO-41 and DO-15 standard packages. Forward currents are between 200 mA and 500 mA. Reverse recovery...
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Designing R2CD Snubbers Using Standard Recovery Diodes
RCD snubbers are widely used to limit peak voltage stress in switched-mode power supplies. By adding an extra resistor, the R2CD configuration improves performance across the board, lowers cost, and increases immunity against variations in circuit parameters. Snubbers play an important role in switch-mode power supplies. To understa...
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Fast SOD-123F Rectifiers Carry 1-A Ratings
Central Semiconductor’s CMMR1U series of 1-A Ultra Fast rectifiers are packaged in the flat-lead SOD-123F surface-mount package. This new series has peak repetitive reverse voltages of 200 V (CMMR1U-02), 400 V (CMMR1U-04), and 600 V (CMMR1U-06). The maximum reverse recovery time (tRR) is 35 ns for the CMMR1U-02, 50 ns for the CMMR1U-04...
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600-V PFC High-Frequency Rectifier
Vishay Intertechnology, Inc launched a new 600-V FRED Pt® Hyperfast tandem rectifier that reduces losses in high-efficiency continuous current mode (CCM) power factor correction (PFC) applications with its extremely fast reverse recovery time, low forward voltage drop, and low package thermal resistance. The new 8S2TH06I-M is optimi...
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Surge Rectifiers Offer a 20% Lower Profile
A line of low-profile bridge rectifiers from Surge Components provide design engineers several advantages in terms of power management and height including a 30% lower profile than other brides in a similar class. These include: · Thin single in-line package · Glass-passivated chip junction · High surge current ca...
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Bridge Rectifier Operates at 1 MHz
Central Semiconductor recently released the CMKBR-6F bridge rectifier. This device consists of a monolithic, fast switching chip with four 60-V, 140-mA high-speed, low-leakage switching diodes, configured as a full wave bridge rectifier. With a low capacitance of 5 pF, low leakage of 10 nA (max.) and a fast switching speed of 1 µs (typ...
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Expanded µIPM Family Has Half-Bridge Power Modules
International Rectifier has expanded its family of highly integrated, ultra-compact, patent pending µIPM power modules with the introduction of the IRSM808-105MH and IRSM807-105MH, optimized for high efficiency appliance and light industrial applications with motor power up to 300 W. Available in an ultra-compact 8 x 9 x 0.9 mm PQFN...
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Selecting Filter Capacitors for Three Phase Bridge Rectifiers
The parameter M, which is a function of the filter capacitor and line power, determines the quantitative relationship between total harmonic distortion (THD) and circuit characteristics for a three-phase bridge rectifier. Almost all off line switching power supplies over several kilowatts of output power use a three phase bridge rec...