公开(公告)号：US3675025A

公开(公告)日：1972-07-04

申请号：US3675025D

申请日：1970-06-16

Applicant: BELL TELEPHONE LABOR INC

Inventor： FELDMAN MARTIN ,  HEITER GEORGE LUDWIG

IPC: G11C11/403 ,  G11C13/04 ,  H01J39/12

CPC classification number: G11C11/403 ,  G11C13/042 ,  G11C13/048

Abstract: Apparatus and method for detecting relatively low intensity electromagnetic energy with high sensitivity comprises a transistor having a light sensitive base area, a current detector-load circuit coupled to its collector terminal, and a voltage control circuit coupled to its emitter terminal. The voltage control circuit serves to supply selective potentials to the emitter terminal in order to enable or inhibit conduction. The current detector-load circuit acts as a low impedance transistor collector load and monitors changes in conduction of the transistor.

Abstract translation: 用于检测具有高灵敏度的相对低强度电磁能的装置和方法包括具有光敏基区的晶体管，耦合到其集电极端的电流检测器负载电路和耦合到其发射极端的电压控制电路。 电压控制电路用于向发射极端子提供选择性电位，以便实现或抑制传导。 电流检测器负载电路用作低阻抗晶体管集电极负载并监测晶体管导通的变化。