Solid state switch.

摘要

A two pole solid state switch has a pair of series connected switching transistors (5 and 6) in each pole. Input lines (7 and 8) are isolated from output lines (9 and 10) by making the switching transistors (5 and 6) non conducting. Additional switches which are preferably additional switching transistors (12 and 13) are arranged between the interconnection points (P) of the switching transistors of each pair in the respective poles of the switch. The additional switching transistors (12 and 13) are put into a highly conducting state whenever the pairs of switching transistors (5 and 6) in the poles of the switch are in a non conducting state. As a result the effective isolation provided by the switch is greatly enhanced.