| 摘要 |
The invention relates to a power factor correction circuit, comprising an input to which an input voltage (ug) can be applied, said input comprising a first and a second connecting terminal, a first switching element (Q1) with a control electrode, a reference electrode and a working electrode, the contro l electrode being coupled to a current source and the reference electrode bein g coupled to a reference potential, an inductive resistor (L1) which is couple d between the working electrode of the first switching element (Q1) and the first connecting terminal of the input. The circuit arrangement also compris es an output where an output voltage (uz) can be provided, said output comprisi ng a first and a second output terminal, a first diode (D1) which is coupled between the working electrode on the first switching element (Q1) and the first terminal on the output, a second switching element (Q2) with a control electrode, a reference electrode and a working electrode, the reference electrode being coupled to the reference potential, a first capacitor (C1) which is coupled between the control electrode on the second switching eleme nt (Q2) and the working electrode of the first switching element (Q1), and a first ohmic resistance (R2) which is coupled between the first connecting terminal of theoutput and the control electrode of the second switching element (Q2).
|
