公开(公告)号：DE19618236A1

公开(公告)日：1996-12-12

申请号：DE19618236

申请日：1996-05-07

Applicant: IBM

Inventor： BAIER HEINZ ,  KUENZEL ULRICH DR

IPC: H02H7/18

Abstract: The invention concerns an electric circuit (5) for an electrical direct voltage source (4) accommodated in a housing (3), the live pole (6) being brought out of the housing (3) via a switching device (23) which can be controlled from outside the housing (3). The switching device (23) can be controlled, for example, by being connected to the on-off switch (21, 22) of an electrical appliance (2). If the on-off switch (21, 22) is closed, for example, by the user, the electrical switching device (23) likewise changes to its closed state such that the voltage emitted by the direct voltage source (4) can be picked up externally at the housing (3). In contrast, if the on-off switch (21, 22) is in its open state, no voltage can be picked up at the connection points (8, 12) on the outside of the housing (3). The advantage of the invention is that no short-circuits can occur between these connection points (8, 12).

公开(公告)号：AT27663T

公开(公告)日：1987-06-15

申请号：AT81105823

申请日：1981-07-23

Applicant: IBM

Inventor： HINKEL HOLGER DR ,  KUENZEL ULRICH DR ,  MAX ERHARD DR ,  SCHNEIDER JOCHEN

IPC: G11B5/73 ,  G11B5/84 ,  G11B5/82