A potential converter device, comprising: a first storage capacitor implemented to be supplied with energy from an energy source having low power output to acquire a first potential form at the first storage capacitor; a second storage capacitor implemented to be supplied with energy from the first storage capacitor to acquire a second potential form at the second storage capacitor; a converter means electrically connected between the first and the second storage capacitors and implemented to execute an energy transmission from the first storage capacitor to the second storage capacitor if the first potential form reaches a first potential threshold value until the first potential form reaches a second potential threshold value, and wherein the first potential threshold value is greater regarding its magnitude than the second potential threshold value; and a control means which is implemented to time-control the energy transmission of the converter means from the first storage capacitor to the second storage capacitor by activating and deactivating the converter means, so that the first storage capacitor is charged in a first time period during which the converter means is deactivated and does not consume any power itself and whose starting time (t 11) is given by reaching the second potential threshold value and whose end time (t 12) is given by reaching the first potential threshold value (P 1), in the first potential form, and wherein the converter means is implemented to execute the energy transmission only in a second time period during which the converter means is activated and whose starting time (t 21) is given by reaching the first potential threshold value and whose end time (t 22) is given by reaching the second potential threshold value, in the first potential form, wherein the ratio of the first time period to the second time period is greater than 5. a first storage capacitor implemented to be supplied with energy from an energy source having low power output to acquire a first potential form at the first storage capacitor; a second storage capacitor implemented to be supplied with energy from the first storage capacitor to acquire a second potential form at the second storage capacitor; a converter means electrically connected between the first and the second storage capacitors and implemented to execute an energy transmission from the first storage capacitor to the second storage capacitor if the first potential form reaches a first potential threshold value until the first potential form reaches a second potential threshold value, and wherein the first potential threshold value is greater regarding its magnitude than the second potential threshold value; and a control means which is implemented to time-control the energy transmission of the converter means from the first storage capacitor to the second storage capacitor by activating and deactivating the converter means, so that the first storage capacitor is charged in a first time period during which the converter means is deactivated and does not consume any power itself and whose starting time (t 11) is given by reaching the second potential threshold value and whose end time (t 12) is given by reaching the first potential threshold value (P 1), in the first potential form, and wherein the converter means is implemented to execute the energy transmission only in a second time period during which the converter means is activated and whose starting time (t 21) is given by reaching the first potential threshold value and whose end time (t 22) is given by reaching the second potential threshold value, in the first potential form, wherein the ratio of the first time period to the second time period is greater than 5.