| 摘要 |
910,589. Semi-conductor devices; circuit assemblies. NIPPON ELECTRIC CO. Ltd. Jan. 3, 1961 [Jan. 20, 1960], No. 261/61. Class 37. A semi-conductor rectifier 17 to be used in a smoothing circuit is protected from switching surges by a series thermistor 16 in the same sealed housing as the rectifier. The resistance of the thermistor falls as the rectifier heats up so that the resistance in series with the rectifier is reduced under working conditions. |
