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Current regulator apparatus with ballast transistor provided with a supplemental transistor to limit the average power dissipation of the ballast transistor
Current regulator apparatus with ballast transistor provided with a supplemental transistor to limit the average power dissipation of the ballast transistor
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机译:具有镇流器晶体管的电流调节器设备,其具有补充晶体管以限制镇流器晶体管的平均功耗
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摘要
1. Device for generating a regulated current, comprising a semi-conductor member (T1 ) playing the role of ballast resistance, fed by a rectified a-c source (V) and biased by a reference voltage (Zener diode Z), characterized by an auxiliary semi-conductor member (T2 ) connected in series with the semi-conductor ballast member (T1 ) and biased by a voltage divider (R3 -R4 ) connected to the terminals of said source.
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