JPS5881616U - Output voltage adjustment circuit - Google Patents

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

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来例を示す回路図、第２図〜第６図はそれぞ
れ本考案の一実施例を示す回路図である。 図中、２は電流増幅器、４．　５．　６及び７は半導体
スイッチ、８，９及び１０は負荷抵抗器、１１は差動増
幅器、１４は減算回路、１９は演算回路である。FIG. 1 is a circuit diagram showing a conventional example, and FIGS. 2 to 6 are circuit diagrams showing one embodiment of the present invention. In the figure, 2 is a current amplifier; 4. 5. 6 and 7 are semiconductor switches, 8, 9 and 10 are load resistors, 11 is a differential amplifier, 14 is a subtraction circuit, and 19 is an arithmetic circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 入力信号の変動を電流の変動に変換する電流増幅器と、
該電流増幅器の負荷抵抗器を切り換える第１の半導体ス
イッチを有する切換回路と、該切換回路に上記電流増幅
器の出力を導入する第２の半導体スイッチとを有し、上
記第２の半導体スイッチの端子電圧により上記切換回路
に含まれる第１の半導体スイッチの電圧降下成分を相殺
して上記切換回路の上記負荷抵抗器に生ずる電圧降下成
分を検出することを特徴とする出力電圧調整回路。a current amplifier that converts input signal fluctuations into current fluctuations;
a switching circuit having a first semiconductor switch that switches a load resistor of the current amplifier; and a second semiconductor switch that introduces the output of the current amplifier into the switching circuit, and a terminal of the second semiconductor switch. An output voltage adjustment circuit characterized in that a voltage drop component occurring in the load resistor of the switching circuit is detected by canceling a voltage drop component of a first semiconductor switch included in the switching circuit with a voltage.