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APHORISMS OF FAMOUS PEOPLE
Free library / Aphorisms of famous people / Thomas Hobbes

Aphorisms of famous people. Thomas Hobbes

Aphorisms of famous people

Free library / Aphorisms of famous people

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Thomas Hobbes. The most famous aphorisms

  • If the geometric axioms hurt the interests of people, they would be refuted.
  • The natural state of people before the formation of society was war, and not only war in its ordinary form, but the war of all against all.
  • Beauty is power, because, being a promise of good, it attracts the love of women and strangers to men.
  • We find in the nature of man three main causes of war: firstly, rivalry, secondly, distrust, thirdly, the thirst for glory.
  • Happiness is not that we have succeeded in something, but in the very success.
  • Only in the state is there a universal scale for measuring virtues and vices. And only the laws of each state can serve as such a scale.
  • Man to man is a wolf.
  • To know the properties of the state, it is necessary to first study the inclinations, affects and customs of people.

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See also Sections Winged words, phraseological units и Proverbs and sayings of the peoples of the world.

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IR1161L and IR11688S synchronous rectifier controllers 16.12.2016

Infineon has introduced to the market a new line of synchronous rectifier controllers for the secondary side of switching power converters, meeting the latest energy efficiency requirements. By using the IR1161L and IR11688S in conjunction with the latest generation of MOSFET switches OptiMOS and StrongIRFET, significant efficiency gains can be achieved over the Schottky diode circuit.

The controllers belong to the SmartRectifier family. During operation, the drain-source voltage is constantly measured, which allows you to determine the direction and amplitude of the current through the transistor. Thus, switching is achieved at its values ​​close to zero. By constantly monitoring the Vds voltage, no current is allowed to flow through the parasitic diode of the transistor, which contributes to a significant reduction in power losses. It is also worth noting the MOT (minimum on time) function, which ensures that there are no reverse (negative) currents through the MOSFET. Reliability and noise immunity are achieved through the use of double-pulse suppression circuits, which allows you to work without problems in fixed and variable frequency modes.

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The IR11688 can drive two n-channel MOSFETs and is used in resonant half-bridge converter circuits. The microcircuit provides protection against simultaneous switching on of both transistors, as well as an energy-saving mode that reduces its own consumption current to hundreds of microamperes when operating at a small load. The controller is used in compact power supplies of medium and high power.

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- transistor drain voltage control up to 200 V;
- maximum switching frequency 500 kHz for IR1161L and 400 kHz for IR11688;
- adjustable time MOT (minimum on time);
- protection against latch at low supply and control voltages;
- low current consumption;
- turn-on time delay 50 ns;
- supply voltage range from 4,75 V to 18 V.

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