|
(11) | EP 0 076 599 A3 |
(12) | EUROPEAN PATENT APPLICATION |
|
|
|
|||||||||||||||
(54) | Power unit |
(57) The power unit supplies two output voltages +UA, -UA having opposite polarities and a common zero potential (0). To ensure symmetrical
loading on the common neutral conductor, a current balancing circuit is provided in
the power unit between the rectifiers (D1, D2) and the longitudinal regulators (IC1,
IC2). |