Levitation. Effective trick and its solution

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EFFECTIVE FOCUSES AND THEIR CLUES
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Levitation. Focus Secret

Spectacular tricks and their clues

Directory / Spectacular tricks and their clues

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Focus Description:

The magician floats in the air at a height of 10-15cm.

Focus secret:

The magician stands at a certain angle to the audience so that the toe on which the magician will stand is not visible, while squeezing the heels together, the magician stands on one toe, and the second one weighs in the air (visible toe of the foot).

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Random news from the Archive

CoolSiC 1200V Silicon Carbide MOSFETs in TO247-3/-4 Package 16.01.2020

Infineon's new 1200V CoolSiC MOSFETs in the TO247-3/-4 package are based on state-of-the-art semiconductor technologies and optimized for high performance and reliability.

The advantage of using SiC transistors compared to Si solutions is higher efficiency, which is especially important for power conversion systems. Compared to Si-based IGBTs and MOSFETs, SiC MOSFETs have several advantages: the lowest gate charge and capacitance levels among 1200V switches, no internal diode recovery loss, low temperature-independent switching loss, and no-threshold characteristic.

CoolSiC MOSFETs are great for hard and resonant switched topologies such as power factor correction (PFC) circuits, bi-directional topologies, DC/DC converters or DC/AC inverters.

Features:

Low switching losses;
Non-threshold characteristic;
Wide gate-source voltage range;
Gate threshold voltage VGS(th) = 4,5V;
Controlled voltage slew rate (dV/dT);
Robust current-carrying diode for hard switching;
Switching losses are independent of temperature;
Maintaining operability in the event of a short circuit for 3 μs at a gate voltage of 15 V.
Available for order in TO247-4 packages. This package has an additional source signal pin to optimize the switching process.

Application:

Solar energy conversion systems;
Electric vehicle charging systems;
Uninterruptible power supplies (UPS);
Power supplies;
Engine management.

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