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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Wide Range Trimming with Variable Loads

Wide Range Trimming with Variable Loads

Vicor Maxi, Mini and Micro modules can be programmed from 10 to 110% of their nominal output voltage. If the system always has a sufficient minimum load, trimming down is easily accomplished with a small low power resistor or potentiometer. With a wide trim range, a preload is often needed to maintain a stable trimmed voltage, especially at light loads. A minimum load is frequently required, typically when the output is programmed below 75% of nominal, but it is always required if it is trimmed below 25%.   Click here to go to an...

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Explosives Detection Systems for Airports

Explosives Detection Systems for Airports

Air travel is an essential part of our daily lives; over 600 million people fly each year, not to mention the millions of bags that go along with them. That is why efficient explosives detectors are absolutely vital for passengers’ safety. Current explosives detection systems (EDS) are the size of a mini-van and employ technology which combine many x-ray images with the aid of a computer to generate cross-sectional views and, if needed, three-dimensional images. A variety of Vicor products, such as modules, VIPACs and PFC MegaPACs, can be used in these systems. In...

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Expansion of the Maxi, Mini and Micro Families of Modules

Having listened carefully to what our customers tell us about their dc-dc power supply requirements, Vicor is very pleased to tell you that within the past year we have doubled the number of pre-defined modules available to you, making it far more likely that you can get the exact power that you need for your design. The expanded range includes: Mid power Maxis for the V 24, V 300 and V 375 families Mid power Minis for the V 24, V 300, and V 375 families Mid power Micros for the V 24, V...

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