Stratospheric Wi-MAX-HAP

Stratospheric Wi-MAX-HAP

The University of York, working with Swiss technology company Strat-XX, are developing a WiMAX-HAP system. This aims to deliver WiMAX wireless broadband services via cellular networks and spot beam antennas as the payload on stratospheric High-Altitude Platforms (HAPs), such as airships or hot-air balloons, at an altitude of around 21 km above the earth. The basic concept for the system is shown below: Using one customer premises equipment (CPE) as a gateway to the wired internet, at least one other remote CPE is linked to the wider internet via the HAP payload. Other users...

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New V•I Chip™ Through-Hole Packaging Option

New V•I Chip™ Through-Hole Packaging Option

Vicor has added a through-hole packaging option for all V•I Chip products. This is in addition to existing surface mount (SMT) compatible packaging, doubling the available range. This new option allows power designers in a broader range of applications to take advantage of the benefits of V•I Chips. Through-hole products are electrically and thermally identical to the SMT versions and are compatible with both hand soldering and wave solder techniques so they are perfect for fast prototyping or large production runs. Through-hole assembly facilitates multi-chip cold-plate or heatsink mounting and makes system assembly simpler,...

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Mid-power Maxi, Mini, and Micro modules for military and aerospace applications

Mid-power Maxi, Mini, and Micro modules for military and aerospace applications

Vicor has introduced a number of new mid-power products to its families of pre-defined modules Maxi, Mini, and Micro DC-DC converters. These modules are well suited to the demands of military and aerospace environments, allowing designers to select standard products better tailored to their specific power and current requirements. Still incorporating Vicor’s patented low-noise Zero-Current and Zero-Voltage Switching (ZCS/ZVS), these products’ inherent low noise greatly reduces the design effort and filtering costs required for power converters to meet various conducted emissions requirements, such as MIL-STD-461. With these new offerings, Vicor can now provide an...

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New MIL-COTS 28 V DC-DC V•I Chip™ Modules: 20% more power and 1/3 the volume in a rugged, miniature package

New MIL-COTS 28 V DC-DC V•I Chip™ Modules: 20% more power and 1/3 the volume in a rugged, miniature package

Vicor’s new MIL-COTS 28 V DC-DC V•I Chip modules consists of a 28 Vdc input PRM™ regulator and a family of VTM™ current multipliers with output voltages from 1 to 50 Vdc. The PRM and VTM chipset provides the full functionality of a DC-DC converter with high efficiency and higher power density, fast transient response, low noise, and flexible thermal management. With each module weighing only 15 grams and measuring just 32.5 x 22 x 6.6 mm, the chipset offers specific advantages for designing power systems in mission-critical portable and airborne applications. A PRM...

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New 24 Vin Wide Input Range DC-DC Converters Launching this Month

New 24 Vin Wide Input Range DC-DC Converters Launching this Month

The new 24 V input series has a wide input range of 10-36 V and are targeted for applications requiring 12 V or 24 V, which are typical for battery systems in vehicles. They can be used in a variety of vehicle applications including lighting, communications, portable test equipment, displays, and control systems. The low-noise ZCS topology greatly reduces the design effort and filtering costs required for power converters to meet agency conducted emissions requirements. The new series offers 16 different output voltages ranging from 3.3 V to 48 V with a maximum power...

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New PFC FlatPAC Launching this Month

New PFC FlatPAC Launching this Month

The new, power dense and flexible PFC FlatPAC uses Vicor’s field-proven VI-HAM and Maxi DC-DC convertersto deliver up to 575 watts of clean, reliable power. The PFC FlatPAC is a single-output power supply available with standard output voltages from 2 to 54 Vdc. It operates from an input of 85-264 Vac, includes active power factor correction (0.99 power factor), and meets EN61000-3-2 harmonic current limits. Internal filtering provides compliance to EN55022-A conducted EMI. It is available in Vicor’s ultra low profile 34.8 mm FlatPAC chassis, in either finned or conduction-cooled (CC) versions. Measuring 126...

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A Guide to Vicor’s Unique Online Power Supply Design and Selector Tools: PowerBench

A Guide to Vicor’s Unique Online Power Supply Design and Selector Tools: PowerBench

Vicor’s PowerBench offers designers the capability to design online a power module or complete power supply to meet their exact requirements. What makes this unique is that these custom products are manufactured on the same manufacturing line, using the same components and manufacturing processes as our standard products. This gives the power supply designer a custom part with the quality, price and delivery assurances they would expect from a standard product. In fact, PowerBench is the umbrella for a suite of packages: in addition to the custom design packages mentioned there are a number...

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