Trennschaltung fuer Wechselrichter

DE 102008048841 B3 UPAB: 20100214 NOVELTY - The circuit (30) has an energy storage element (C01) e.g. capacitor, connected with inputs (10, 12) and storing energy received from the inputs. Electronic switches (S01, S02) are switched between the energy storage element and outputs (36, 38). The switches connect the energy storage element with the outputs during a free-wheel phase of a single-phase inverter (26), and isolate the energy storage element from the outputs outside the free-wheel phase of the inverter. The storage element is switched between a connection and another connection of the inputs. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following: (1) a system for converting a received direct current voltage into an alternating voltage, comprising a solar generator (2) a method for converting the received direct current voltage into the alternating voltage by the solar generator. USE - Isolating circuit for a single-phase inverter in a H4-bridge circuit for converting an electrical direct current voltage into an elctrical alternating voltage. ADVANTAGE - The switches connect the energy storage element with the outputs during the free-wheel phase of the single-phase inverter, and isolate the energy storage element from the outputs outside the free-wheel phase of the inverter, so that a grounded solar generator is separated, thus avoiding a short-circuit between the generator and a grounded network