| 摘要 |
<p>1,009,205. Protective systems for voltage regulators. WESTERN ELECTRIC CO, Inc. Dec. 14, 1961 [Dec. 15, 1960], No. 44746/61. Heading G3R. The series transistor of a voltage stabilizer is protected from transient overloading due to discharge of the reservoir capacitor 7 when the output is short circuited, by connecting a capacitor across the transistor through a biased diode. A transistor 1 is connected in series between a supply rectifier 8 and load terminals 14, 15, and is normally controlled to stabilize the voltage at 14, 15 by a Zener diode 10 and comparator transistor 11. A capacitor 2 is connected in series with a diode 3 across the transistor 1, the diode 3 being back-biased by a potential divider 5, 6. On short circuit diode 3 conducts diverting the discharge energy of capacitor 7 into capacitor 2 which charges slowly until the fuse 4 "blows".</p> |
