| 摘要 |
<p>PCT No. PCT/AU90/00343 Sec. 371 Date Mar. 10, 1992 Sec. 102(e) Date Mar. 10, 1992 PCT Filed Aug. 10, 1990 PCT Pub. No. WO91/03103 PCT Pub. Date Mar. 7, 1991.A switching device (2) comprises a plurality of switching means (4) connected in series by input conductor (12) to an input terminal (8). A plurality of respective load means (6) are connected between the switching means (4) and an output terminal (10). Each of the switching means (4) is adapted to selectively activate the respective load means (6) by connecting it to the input terminal (8) in response to a corresponding voltage level applied to the input terminal (8).</p> |
