| 摘要 |
<p>PCT No. PCT/DE87/00274 Sec. 371 Date Mar. 7, 1988 Sec. 102(e) Date Mar. 7, 1988 PCT Filed Jun. 12, 1987 PCT Pub. No. WO87/07987 PCT Pub. Date Dec. 30, 1987.Such electronic control systems contain safety circuits for device components endangered by excessive currents or excessive voltages, which are constructed only for a pulse operation and not for higher relative switch-on times. In order to shield the effectors (users) already in the pre-stage against undesirable high currents or, respectively, voltages, such that a punch through of these destroying voltages or, respectively, currents can be excluded for practical purposes, it is disclosed that an effector (1) is controllable in operating condition and simultaneously a reference voltage (R1/R2) can be switched on within the permissible tolerance region where, upon the exceeding of the tolerance region, the effector (1) can be switched off.</p> |
