18035315. Circuit and Method for Controlling Rectifier, and Circuit Including the Rectifier simplified abstract (Telefonaktiebolaget LM Ericsson (publ))

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Circuit and Method for Controlling Rectifier, and Circuit Including the Rectifier

Organization Name

Telefonaktiebolaget LM Ericsson (publ)

Inventor(s)

Huajuan Xiao of Beijing (CN)

Donghao Li of Beijing (CN)

Ying Cao of Beijing (CN)

Jiashen Tian of Beijing (CN)

Circuit and Method for Controlling Rectifier, and Circuit Including the Rectifier - A simplified explanation of the abstract

This abstract first appeared for US patent application 18035315 titled 'Circuit and Method for Controlling Rectifier, and Circuit Including the Rectifier

Simplified Explanation

The patent application describes a circuit and method for controlling a rectifier, which includes a transformer, an inductor, and at least one switching component. The method involves sensing the current flowing into the inductor and primary winding of the transformer, generating an indication voltage based on the sensed current, comparing the indication voltage with a reference voltage, and driving the switching component based on the comparison result.

  • The rectifier includes a transformer, inductor, and switching component.
  • The method involves sensing the current, generating an indication voltage, comparing it with a reference voltage, and driving the switching component accordingly.
  • The timing for turning on/off the switching component is optimized to reduce power loss and improve efficiency.

Potential Applications

  • Power electronics
  • Renewable energy systems
  • Electric vehicle charging stations
  • Industrial automation

Problems Solved

  • Power loss in rectifiers
  • Inefficient energy conversion
  • Lack of control in rectifier circuits

Benefits

  • Reduced power loss
  • Improved energy efficiency
  • Enhanced control over rectifier circuits


Original Abstract Submitted

A circuit and a method for controlling a rectifier, and a circuit including the rectifier are disclosed. The rectifier may comprise: a transformer (T); an inductor (Lm) coupled with a primary winding (Np) of the transformer (T) in parallel; at least one switching component (SR, SR) coupled between a secondary winding (Ns, Ns) of the transformer (T) and an output of the rectifier. The method may comprise: sensing (S) a current flowing into a combination of the inductor (Lm) and the primary winding (Np) of the transformer (T); generating (S) an indication voltage, based on the sensed current; comparing (S) the indication voltage and a reference voltage; and driving (S) the at least one switching component (SR, SR), based on a comparison result of the indication voltage and the reference voltage. The timing point for turning on/off the switching component (SR, SR) may be optimized, so as to reduce the power loss and improve the efficiency.