| 摘要 |
<p>A method and a circuit arrangement for operating at least one LED, includes: a first and a second mains connection for connecting a mains voltage; a first rectifier, whose rectifier input is coupled to the mains connections and at whose rectifier output the rectified mains voltage can be provided; an electronic pump switch coupled to the rectifier output, defining a pump node; a main energy store coupled to that side of the electronic pump switch which faces away from the rectifier output; an inverter coupled to the main energy store supplied with energy therefrom. The inverter provides an inverter voltage at its inverter output which has an inverter frequency; a pump network coupling the inverter output to the pump node; a matching network, via which coupling the inverter output to the connection terminals for at least one LED, wherein the matching network has a resonant circuit having a natural frequency.</p> |
