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Экологический статус

Статьи

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  Simplify Small Solar Systems with Hysteretic Controller &mdash LT Journal
  PDF, 122 Кб, Файл опубликован: 7 июл 2015
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  design ideas Simplify Small Solar Systems* with Hysteretic Controller
  Mitchell Lee Battery-based solar power systems in the 10W–100W range often use a switching
  regulator to control battery charge. These have the advantage of high efficiency
  and facilitate peak power point tracking, but only at the cost of an inductor, circuit
  complexity and noise. As a simpler alternative to a switching regulator, linear
  control is feasible in applications up to about 20W. While simple and quiet, linear
  charge controllers generate heat, which must be shed by means of a heat sink.
  The bulk, cost and assembly complexity of a heat sink somewhat nullify a linear
  charge controller’s perceived advantages over a switching regulator approach.
  A hysteretic controller that simply
  connects or disconnects the solar panel
  as needed to limit the battery’s state
  of charge provides an excellent anodyne, one devoid of inductors, complexity, noise and heat sinking.
  Both series and shunt hysteretic switch
  topologies are possible. A series configuration opens the connection to the solar
  panel when the battery has reached its
  maximum charging voltage, then reconnects when the battery voltage falls to
  a lower threshold. The chief difficulty
  with a series configuration is driving the
  high side switch, which requires either a
  charge pump for an n-channel implementation or a high voltage, high side gate
  drive circuit for a p-channel MOSFET.
  The preferable shunt arrangement is …

Модельный ряд

Классификация производителя

• Monitor, Control and Protection > Supervisory Circuits > Single Supply Monitors
• Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) System Monitor