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Adaptive current source drivers

Adaptive current source drivers

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Compared to the previous CSDs, the adaptive-drive current and drive voltage can be realized to optimize the switching loss reduction and the drive loss reduction at different load currents. It should be noted that the adaptive concept is suitable for both the continuous and discontinuous CSDs regardless of the drive-circuit topologies. The linear regulator can be used to achieve the function of the adaptive voltage and drive current in a cost-effective manner.

Chapter Contents:

  • 5.1 Adaptive current source driver for buck converters
  • 5.1.1 Introduction
  • 5.1.2 Adaptive continuous current source driver
  • 5.1.2.1 Synchronous buck converter with the continuous current source driver
  • 5.1.2.2 Optimal design and adaptive control with the continuous current source driver
  • 5.1.3 Adaptive discontinuous current source drivers
  • 5.1.3.1 Synchronous buck converter with the discontinuous current source driver
  • 5.1.3.2 Optimal design and adaptive control with the discontinuous current source driver
  • 5.1.4 Implementation of the adaptive drive voltage for the current source drivers
  • 5.1.5 Experimental results and discussion
  • 5.2 Adaptive current source driver for power factor correction application
  • 5.2.1 Introduction
  • 5.2.2 Analysis of current source driver circuits and proposed adaptive current source driver for boost power factor correction converters
  • 5.2.2.1 The proposed current source driver for boost power factor correction converter
  • 5.2.2.2 Adaptive gate-drive current of the power MOSFET
  • 5.2.2.3 Application extension
  • 5.2.3 Loss analysis of proposed adaptive current source driver for boost power factor correction converter
  • 5.2.3.1 Loss analysis of power stage
  • 5.2.3.2 Example of loss comparison
  • 5.2.4 Experimental results and discussion
  • 5.3 Digital adaptive power factor correction
  • 5.3.1 Introduction
  • 5.3.2 Principle of the proposed digital adaptive discontinuous current source driver
  • 5.3.2.1 Topology of the full-bridge current source driver
  • 5.3.2.2 Proposed pre-charge time based digital adaptive current source driver
  • 5.3.3 Design procedure and implementation
  • 5.3.3.1 Interleaved boost power factor correction converter under CRM
  • 5.3.3.2 Design procedure of the adaptive-drive current
  • 5.3.3.3 Loss comparison between the constant-drive current and the adaptive-drive current
  • 5.3.3.4 Close-loop control of the interleaved boost power factor correction converter with the digital adaptive current source driver
  • 5.3.4 Experimental results and discussion
  • 5.3.4.1 Experimental results of the digital adaptive discontinuous current source driver
  • 5.3.4.2 Loss reduction of the digital adaptive discontinuous current source driver
  • 5.4 Summary
  • References

Inspec keywords: driver circuits; constant current sources

Other keywords: adaptive voltage; switching loss reduction; continuous CSDs; linear regulator; discontinuous CSDs; adaptive-drive current; adaptive current source drivers; load currents; drive-circuit topologies; drive voltage; drive loss reduction

Subjects: Power electronics, supply and supervisory circuits

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