140 



BELL SYSTEM TECHNICAL JOURNAL 



BIAS 



APPLIED VOLTAGE 



Fig. 1. — Ideal biased linear rectifier characteristic. 



(1) 



LINEAR 

 CHARACTERISTIC 



(2) 



BIASED POSITIVE 

 RECTIFIER 



(3) 



BIASED NEGATIVE 



RECTIFIER 



bi 



^ 



(4) 



BIASED IDEAL 

 LIMITER 



I'ig. 2. — Synthesis of liniiter characteristic. 



