JPS5925815U

JPS5925815U - BTL amplifier

Info

Publication number: JPS5925815U
Application number: JP11987182U
Authority: JP
Inventors: 進田中; 瞭介伊藤
Original assignee: 山水電気株式会社
Priority date: 1982-08-09
Filing date: 1982-08-09
Publication date: 1984-02-17

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来装置の一例の構成を示す回路図、第２図は
同側を説明するための図、第３図は従来装置の他の一例
の構成を示す回路図、第４図は本考案の一実施例の概略
構成を示す模式的回路図、第５図は本考案の他の実施例
の要部構成を示す回路図、第６図および第７図は本考案
の各実施例に用いる要部の具体的な構成の例を示す回路
図である。１・・・・・・入力端子、６．７・・・・・・出力端子
、８・・・・・・負荷、９・・・・・・電源トランス、
１０・・・・・・整流回路、１５．１６・・・・・・前
置増幅器、１７・・・・・・平滑コンデンサ、１８．１
９・・・・・・５ＥＰＰ出力回路、２０゜２１・・・・
・・高抵抗。Fig. 1 is a circuit diagram showing the configuration of an example of a conventional device, Fig. 2 is a diagram for explaining the same side, Fig. 3 is a circuit diagram showing the configuration of another example of the conventional device, and Fig. 4 is a diagram for explaining the same side. A schematic circuit diagram showing a schematic configuration of one embodiment of the invention, FIG. 5 is a circuit diagram showing the main structure of another embodiment of the invention, and FIGS. 6 and 7 are diagrams showing each embodiment of the invention. FIG. 3 is a circuit diagram showing an example of a specific configuration of the main parts used. 1...Input terminal, 6.7...Output terminal, 8...Load, 9...Power transformer,
10... Rectifier circuit, 15.16... Preamplifier, 17... Smoothing capacitor, 18.1
9...5EPP output circuit, 20°21...
・High resistance.

Claims

[Scope of utility model registration request]

Two sets of amplifier circuits, each consisting of a preamplifier and an output circuit driven by the preamplifier, are used, and each preamplifier is used as an amplifier that outputs non-inverted and inverted signals with respect to input signals. , in a BTL amplifier in which the two sets of amplifier circuits are operated in opposite phases to each other and a load is connected between the output points of each of the output circuits, the two sets of preamplifiers output a current signal proportional to the input signal. It consists of a current output type amplifier, and the above two sets of output circuits are connected to the above two sets of output circuits.
1. A BTL amplifier comprising a current amplifier operated by a power source substantially isolated from a reference potential point of a preamplifier.