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引言荷兰乌得勒支城 NIEAF 公司研制出一种直流放大器,它利用光束调制原理,对投射到光敏晶体三极管的发射电极的光束进行调制,使该放大器具有自补偿特性。在补偿反馈电路
INTRODUCTION NIEAF, Utrecht, The Netherlands, has developed a DC amplifier that uses the beam modulation principle to modulate the beam projected onto the emitter electrode of a phototransistor so that the amplifier has self-compensation characteristics. Compensate the feedback circuit