Title:
AMPLITUDE DETECTOR FOR PULSE STATE SIGNAL
Document Type and Number:
Japanese Patent JPS5970311
Kind Code:
A
Abstract:
1. An amplitude detector, which at its output emits a d.c. voltage corresponding to the respective amplitude of the input a.c. voltage, and which contains a first transistor (T1) whose emitter is connected to a signal input (E), whose base is connected to reference potential via the parallel arrangement of a capacitor (C3) and a resistor (R6), and whose collector is connected to reference potential via a resistor (R2), characterised in that for processing signals in the form of pulses which have a high pulse repetition frequency the emitter of the first transistor (T1) is connected to the pulse signal input (E) via a series arrangement of a first resistor (R1) and a first capacitor (C1), that the collector of this transistor is connected to an output terminal (A), and to reference potential via a parallel arrangement of a second resistor (R2) and a second capacitor (C2), that the emitter of the first transistor is connected via a fourth resistor (R4) to the operating voltage (-UB), and that the base of the first transistor (T1) is connected to the operating voltage (-UB) via a first diode (D1) and a fifth, adjustable resistor (R5).
Inventors:
FURITSUTSU MAIYAA
Application Number:
JP16057883A
Publication Date:
April 20, 1984
Filing Date:
September 02, 1983
Export Citation:
Assignee:
SIEMENS AG
International Classes:
G01R19/04; H03K3/2893; H03K5/153; H03K5/08; H04L1/20; H04L25/04; (IPC1-7): H03K5/153
Domestic Patent References:
| JPS4715008A | ||||
| JPS5210620A | 1977-01-27 | |||
| JPS5636804A | 1981-04-10 |
Attorney, Agent or Firm:
Toshio Yano