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Current-Doubler Rectifier Reduces Ripple Current
The current-doubler rectifier is a popular alternative for the output stage of a buck-derived power converter, which would otherwise use a conventional center-tapped transformer with secondary-side, full-wave rectification. Power topologies within this class include the push-pull, half bridge and full bridge. Many advantages can be gai...
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[ Schottky bridge rectifiers ] Schottky Bridges Feature Small Size
![[ Schottky bridge rectifiers ] Schottky Bridges Feature Small Size](http://www.codingintl.com/blog/wp-content/uploads/2014/10/SR120_2.jpg "[ Schottky bridge rectifiers ] Schottky Bridges Feature Small Size")
Central Semiconductor has developed small Schottky bridge rectifiers, packaged in the HD DIP surface mount case. The CBRHDSH1-40L (1-A) and CBRHDSH2-40 (2-A) devices are 40-V, low-VF bridge rectifiers with a typical VF of 0.39 V at 1.0 A and 0.45 V at 2.0 A, respectively. Compared to the larger SMDIP surface mount package, the HD DI...
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17mm Height Rectifier Modules Meet Industry Needs
Powersem GmbH has released two new three-phase Bridge Rectifier Modules with a profile height of 17mm: The bridge rectifier modules are the PSDS 62 rated at 63A at 110°C for versions rated at 800V, 1200V, 1400V, 1600V and 1800V and the PSDS 82 rated at 88A at 110°C for versions rated at 800V, 1200V, 1400V, 1600V and 1800V. Both modules...
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Surface-mount Metal Oxide Resistors Replace Through hole Designs
Providing designers with a surface-mount option for higher power circuit designs, resistor manufacturer Stackpole Electronics Inc. recently introduced a molded surface-mount metal oxide resistor technology that features resistance values from 3 KΩ to 1 MΩ, in power ratings up to 3 W. Designated the SMX Series, these resistors are expec...
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Ultra-High-Precision Z-Foil Through Hole Resistors
The Z Series of ultra-high-precision Bulk Metal® Z-Foil through hole commercial off-the-shelf (COTS) resistors from Vishay Precision Group, Inc. has been enhanced with an extended resistance range down to 5 Ω. For high-precision applications in harsh environments, the devices provide very low nominal TCR of ±0.05 ppm/°C from 0°C to +60...
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Ultra-High-Precision Through Hole Z-Foil Resistor for Applications to +200°C
To meet the growing demand for precise, stable, and reliable resistors that can operate in harsh environments, Vishay Precision Group, Inc. announced that its Vishay Foil Resistors brand (VFR) has introduced a new ultra-high-precision through hole Z-Foil resistor designed for high-temperature applications up to +200°C. The Z201HT offer...
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High-Frequency Power Module is First to Use All Silicon Carbide
Employing all SiC construction, the CAS100H12AM1 from Cree is a 1200 V, 100 A power module configured in a 50 mm half-bridge circuit with five 1200 V, 80 mΩ Z-FET MOSFETs and five 1200V Z-Rec Schottky diodes (Fig. 1). Maximum junction temperature for the MOSFETs are 150°C and the diodes are 175°C. Modules are rated to 125°C maximum cas...
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Intelligent Power Modules Combine Power Expertise and Insulated Metal Substrate Technology
ON Semiconductor is combining the company's Insulated Metal Substrate Technology (IMST) with its broad power solutions portfolio and longstanding expertise in efficient power management. ON Semiconductor provides an innovative range of Intelligent Power Modules and power inverters as well as design support and manufacturing capability....
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Optocouplers Safely Isolate Integrated Power Modules
Optocouplers provide high-voltage isolation between a low-voltage device like a microcontroller or a pulse-width modulation (PWM) generator and a high-voltage device like an intelligent or integrated power module (IPM). The optocoupler is a key interface device because every high-voltage circuit must be compliant with equipment safety ...
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IC-style POLs Operate from Wide Input Voltage Range
Delta Electronics has introduced the IPM24S, a nonisolated, fully integrated, cost-effective point-of-load power module (POL) into its Delphi Series of board-mounted dc-dc converters. The Delphi Series IPM24S family of product provides up to 3 A or 20 W of output in an industry standard, IC-style molded package. The IPM24S POLs oper...