Optimising Processing Real Estate

Optimising Processing Real Estate

The drive to create metadata processing server systems plus the parallel push for increased port density and triple-play (voice/video/internet) traffic handling in telecommunication systems places greater demands on power management architectures. The problem: inefficient power architectures Traditional designs using AC to 12 Vdc Silver Box followed by 12 V to 1.x Vsynch buck have run aground in terms of system power density and efficiency due to a combination of distribution bus losses and fundamental restrictions in topology performance as processor voltages reach sub-volt levels. Higher voltage (48 V or 350/380 V) bus voltages reduce...

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Torpedo Control System

Torpedo Control System

Torpedos are very demanding applications, requiring very reliable and rugged components (including the power supply). Their shape and size also mean that the space left for the power supply element can be very small and the wrong shape to fit a standard box solution! For one Vicor customer, operating in the defense and large systems electronics sectors, in particular in the underwater systems field. One of their most successful applications is a heavy-weight torpedo used as a multipurpose weapon designed to be launched by submarines or surface vessels. The customer required a complete, non-standard...

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Head-down Display Equipment for Harsh Environments

Head-down Display Equipment for Harsh Environments

In recent years aircraft flight and navigational information have migrated from conventional round mechanical dials mounted on the instrument panel, to software-dependent electronic displays, capable of showing many types of information. In particular, a head-down display is a rear projection information system that displays essential flight information, helping the pilots “artificially” see their surroundings and the ground. One Vicor customer specializes in the area of high technology electronic systems, telecommunication accessories and aircraft harnesses, which satisfy the needs of the international defence industry. They are now developing a new head-down display designed to operate...

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Multiple Inputs Power Supply Architecture

Multiple Inputs Power Supply Architecture

Some electronic systems, such as field communication shelters or portable emergency equipment, must be able to operate from a variety of power sources, for example worldwide AC (85–264 Vrms), vehicle battery power, or portable generator sets, in both the 12 V or 24 V standards. In addition, these systems may also require backup power from auxiliary batteries in case the primary source is interrupted. An example of this power supply architecture is shown in the figure below (click for larger image). For AC line use, a front-end module accepts a universal AC input and...

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Solar-powered Car

Solar-powered Car

By easing power-circuit design and providing reliable operation even in tough desert conditions, a Vicor DC-DC module has helped a solar-powered car to compete in Solar Challenge races in Australia. The 1,800 mile race challenges power designs with severe restrictions on energy, space and heat dissipation. Faced with designing a power circuit for a solar-powered car, to compete in the Solar Challenge across 1,800 miles of Australian desert, a team of young engineers turned to Vicor DC-DC converters. Their challenge was to provide stable and reliable supply voltage to the on-board PC and telemetry...

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Expansion of Mid-power 24 Vin Mini Modules Family

Expansion of Mid-power 24 Vin Mini Modules Family

Vicor has added nine mid-power Mini DC-DC converters to the 24 Vdc input family: a 100 W model at 3.3 Vout, 150 W models at 5, 12, 15, 24, 28, 36, and 48 Vout. A 200 W model at a new standard 36 V output has also been added. The modules – which incorporate Vicor’s patented low-noise Zero-Current and Zero-Voltage Switching (ZCS/ZVS) – can be used as a cost-effective option in a variety of applications, including industrial or process control, distributed power, medical, ATE, communications, defence, and aerospace. Low-noise ZCS/ZVS greatly reduces the design effort...

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Microlithography for the Semi-conductor Industry Using Laser Scanning

Microlithography for the Semi-conductor Industry Using Laser Scanning

The PFC MegaPAC proves an ideal solution for a custom microlithographic processor. Depending on the semi-conductor manufacturers’ requirements, each system can be customised with a variety of output voltages, both positive and negative. The configurability of the product also means that lead times for this large piece of capital equipment can be reduced, improving the bottom line for the customer. Additionally, the modularity of the PFC MegaPAC enables fast system repair in the event of a supply rail failure. A similar microlithographic process is also used for making a display. In this processor, the photo...

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