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High power charge pump with inductive elements

  • US 10,637,352 B2
  • Filed: 08/30/2017
  • Issued: 04/28/2020
  • Est. Priority Date: 09/07/2016
  • Status: Active Grant
First Claim
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1. A DC-DC converter, comprising an input DC-link, an output DC-link, the output DC-link connected to the input DC-link by a circuit arrangement comprising at least a storage capacitor, a DC-link capacitor, and at least one controllable switching arrangement, with the controllable switching arrangement adapted to connect at least one of the storage capacitor and DC-link capacitor and/or the input DC-link to the output DC-link, wherein an inductive element is serially connected immediately in front of the storage capacitor and both the storage capacitor and the inductive element are adapted to form a resonant circuit and wherein the circuit arrangement comprises a further DC-link capacitor serially connected to the DC-link capacitor, and permanently connected with the input DC-link and with the at least one controllable switching arrangement, the at least one controllable switching arrangement adapted to alternatively connect the further DC-link capacitor or the input DC-link to the storage capacitor, with a switching frequency of the at least one controllable switching arrangement and the resonance frequency of the resonant circuit being essentially equal.

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