公开(公告)号：US3659082A

公开(公告)日：1972-04-25

申请号：US3659082D

申请日：1970-06-12

Applicant: INSTRUMENTATION LABOR INC

Inventor： ROLFE NORMAN FREDERICK FERDINA

IPC: G06G7/24

CPC classification number: G06G7/24

Abstract: A log converter circuit has converter and reference transistors connected in differential pair relation. An operational amplifier is connected in circuit with each transistor and a storage circuit is arranged to apply an output of the circuit to the reference transistor. A switch is connected between the output of the log converter circuit and the storage circuit for interrupting application of symetrical signal from the log converter circuit to the storage circuit.

Abstract translation: 对数转换电路具有以差分对关系连接的转换器和参考晶体管。 运算放大器与每个晶体管连接在电路中，并且存储电路被布置成将电路的输出施加到参考晶体管。 在逻辑转换电路的输出和存储电路之间连接有开关，用于中断从对数转换器电路到存储电路的对应信号的应用。