LIMITER CIRCUIT

PROBLEM TO BE SOLVED: To eliminate waveform distortion and a change in a DC level of a signal in the case that the signal with a voltage close to the upper limit or the lower limit is received. SOLUTION: Since a negative feedback is applied from the output terminal 30 to an inverting input terminal...

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Bibliographische Detailangaben
Hauptverfasser:	YOSHIHARA MASAKI, KOBAYASHI MIYUKI, KUBOTA YOSHIHIRO, UNO YOSHIO, TOGUCHIDA KAZUE, MURAKAMI TOSHIYA, YOSHIZAWA YUKIE
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRONIC CIRCUITRY CONTROL OF AMPLIFICATION ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY PICTORIAL COMMUNICATION, e.g. TELEVISION
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To eliminate waveform distortion and a change in a DC level of a signal in the case that the signal with a voltage close to the upper limit or the lower limit is received. SOLUTION: Since a negative feedback is applied from the output terminal 30 to an inverting input terminal of an operational amplifier 8, characteristics of the linearity of 1st and 2nd one-side limiter circuits 4, 6, when an input signal level is close to a 1st constant voltage 14 or a 2nd constant voltage 24, are improved and waveform distortion of the signal is eliminated. Voltage difference between a noniverting input terminal and the inverting input terminal of the operational amplifier 8 is very small, so that the signal fed to the input terminal 31 is outputted from the output terminal 30 as is without change DC level.