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quiescent current वाक्य

"quiescent current" हिंदी मेंquiescent current in a sentence
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  • However, the 78xx devices'quiescent current is substantially higher and less stable.
  • The series pass element, topologies, and ambient temperature are the primary contributors to quiescent current.
  • Quiescent current is current drawn by the LDO in order to control its internal circuitry for proper operation.
  • So, due to the negative feedback, the quiescent current depends only slightly on the transistor's ?.
  • However, a different input that attempts to set the signal to 0 will show a large increase in quiescent current, signalling a bad part.
  • In this idle state the LDO still draws a small amount of quiescent current in order to keep the internal circuitry ready in case a load presented.
  • They provide the majority of the current amplification ( while consuming low quiescent current ) and directly drive the load, connected via DC-blocking capacitor C2.
  • The Holtek regulators have a quiescent current of < 5 �A ( approximately 1000 times less than the LM78xx series ) making them better suited for battery-powered devices.
  • The Buck PMIC for solar and vibrations energy harvesting MB39C811regulates output voltage with the quiescent current of 1.5�A . The Boost PMIC for solar and thermal energy harvesting MB39C831.
  • In contrast to the traditional Darlington configuration, quiescent current is much more stable with respect to changes in the temperature of the higher power output transistors vs the lower power drivers.
  • To make the output more stable, the device is designed to keep the quiescent current at or below 100�A, making it possible to ignore the error term in nearly all practical cases.
  • Quiescent currents in Q16 and Q19 are set by the current mirror Q12 / Q13, which is running at H " 1 mA . Through some mechanism, the collector current in Q19 tracks that standing current.
  • There is no negative feedback since the emitter voltage does not change at all when the input base voltages change . " he common quiescent current vigorously steers between the two transistors and the output collector voltages vigorously change.
  • Optimal quiescent current in an amplifier using Sziklai pairs also tends to be much lower than in Darlington-based output stages, on the order of 10mA vs . 100mA or more for some emitter follower output stages.
  • Power is also dissipated when the electrons from the cathode slam into the anode ( plate ) and heat it; this can occur even in an idle amplifier due to quiescent currents necessary to ensure linearity and low distortion.
  • The series negative feedback ( the emitter degeneration ) makes the transistors act as voltage stabilizers; it forces them to adjust their V BE voltages ( base currents ) to pass the quiescent current through their collector-emitter junctions.
  • At the same time, the magnitude of the quiescent current is relatively insensitive to the characteristics of the components Q1 Q4, such as " h " fe, that would otherwise cause temperature dependence or part-to-part variations.
  • In contrast with classic amplifying stages that are biased from the side of the base ( and so they are highly ?-dependent ), the differential pair is directly biased from the side of the emitters by sinking / injecting the total quiescent current.
  • The exact choice of "'quiescent current "'( the standing current through both devices when there is no signal ) makes a large difference to the level of distortion ( and to the risk of thermal runaway, that may damage the devices ).
  • On June 10, 2014, Kevin Hayes was issued U . S . Patent 8, 749, 310 for " amplifier bias control . " This patent covers the only known technique for observing the true underlying quiescent current ( idle current ) of an output tube ( or transistor ) under dynamic signal conditions, and then holding it to the stable target value with a precision of 99 % or better.
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