Bistable controllable power switch for switching large and small loads has auxiliary circuit that closes large current switch before low current switch when switch-on pulse is applied

摘要

The device has at least one large current switch (1) for large currents arranged between two connection terminals (11,12) of a large current path (a) and controllable by a bistable drive (2a, b) using an auxiliary circuit. The auxiliary circuit controls a low current switch (5) in a low current path (b) in parallel with the large current path and closes the large current switch before the low current switch when a switch-on pulse is applied.