Patent ID: 7804276
Filing Date: 2010-09-28
Classification: H02J

Abstract:
1. A circuit arrangement for transferring electrical charge between accumulators of an accumulator arrangement comprising a series circuit of accumulators, comprising a number of first series circuits each for connecting in parallel to one of the accumulators, and each comprising a switching element having a load path and a control terminal, and an inductive storage element connected in series to the load path; a further series circuit for connecting in parallel to the accumulator arrangement and comprising a further switching element having a load path and a control terminal, and a further inductive storage element connected in series to the load path, the further inductive storage element being inductively coupled to the inductive storage elements of the first series circuits; a control circuit comprising a number of first control outputs each of which being connected to the control terminal of one of the switching elements of the first series circuits, and a further control output connected to the control terminal of the further switching element; wherein the circuit arrangement is configured to assume an operation mode in which the control circuit closes a switching element of a first series circuit of one of the accumulators via the corresponding control input to selectively take energy from the accumulator, and in which the control circuit opens the switching element of the first series circuit of the accumulator and closes the further switching element via the corresponding control input and the further control input, respectively, to subsequently feed the energy back to the accumulator arrangement.