Drive circuit system and method for enhancing slew rate of operational amplifier

The invention discloses a drive circuit system and a method for enhancing slew rate of an operational amplifier. The drive circuit system comprises an operational amplifier, a judge module and a bias reinforcing module. The operational amplifier has an input stage driven by bias current. The bias re...

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Bibliographische Detailangaben
Hauptverfasser:	ZUO KEYANG, LIANG YANXIONG, ZHAO JINJIE
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADVERTISING AMPLIFIERS ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION BASIC ELECTRONIC CIRCUITRY CRYPTOGRAPHY DISPLAY EDUCATION ELECTRICITY PHYSICS PULSE TECHNIQUE SEALS
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Beschreibung
Zusammenfassung:	The invention discloses a drive circuit system and a method for enhancing slew rate of an operational amplifier. The drive circuit system comprises an operational amplifier, a judge module and a bias reinforcing module. The operational amplifier has an input stage driven by bias current. The bias reinforcing module is respectively electrically connected with the judge module and the input stage of the operation amplifier. The judge module is used for generating a bias reinforcing signal according to the edge trigger of a control signal. When the bias reinforcing module receives the bias reinforcing signal, the bias reinforcing module provides additional current to match with the bias current to drive the input stage of the operational amplifier, thereby enhancing the slew rate of the operational amplifier.