NOVELTY - The circuit has a closed-loop control circuit (6) coupled to a current detection device (8) for adjusting output current signal to a setpoint current signal (6c). A transformer (2) comprises a first winding (2a) coupled to an output connection (1a) of an energy storage device (10), and a second winding (2b) isolated from the first winding. A compensation current generation device (4) is coupled to the control circuit and feeds compensation current compensating for fluctuations in output current of the energy storage device into the second winding depending on current control signal.    USE - Damping circuit for damping oscillations of output current of an energy storage device utilized in person or goods transport vehicles such as ships and motorboats. Can also be used for wind-power plants or solar plants and hybrid or electric cars.    ADVANTAGE - The circuit enables damping in a critical resonant frequency range without utilizing unnecessary consumption of resources in uncritical ranges, which avoid damping of current ripple, thus increasing efficiency of the damping circuit. The circuit utilizes already existing components such as current-limiting inductors, during configuration of the circuit, which results in reduced costs, reduced complexity and reduced requirement in terms of installation space. The compensation current generation device is implemented as a full bridge with soft-switching devices, so that low-loss generation of the compensation current for feeding into the second winding of the transformer can be realized.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following:    (1) a system for damping oscillations of output current of an energy storage device    (2) a method for damping oscillations of output current of an energy storage device.    DESCRIPTION OF DRAWING(S) - The drawing shows a circuit diagram of a system for damping oscillations of output current of an energy storage device.    Output connection (1a)    Transformer (2)    Windings (2a, 2b)    Compensation current generation device (4)    Closed-loop control circuit (6)    Setpoint current signal (6c)    Current detection device (8)    Energy storage device (10)