Bipolar zero position and gain adjustable amplifier and analog signal conditioner

Abstract

The invention relates to a bipolar zero position and gain adjustable amplifier and an analog signal conditioner, in particular to a voltage amplifier with adjustable amplification factor positive-negative bipolarity and adjustable zero position and an analog signal conditioner with temperature compensation and non-linear correction realized by adopting an operational amplifier, belonging to the field of signal conversion operation and automatic control. The bipolar gain adjustable amplifier has a voltage type, a simple type, a current type, an attenuation type, a uniform adjustment type, a separate adjustment type and the like; the amplifiers of the voltage type, the simple type, the current type and the attenuation type adopt a single operational amplifier circuit; the amplifiers of the uniform adjustment type and the separate adjustment type adopt a double-operational amplifier circuit; and the analog signal conditioner consists of a zero position temperature shift adjuster and a magnification adjuster. The bipolar gain adjustable amplifier is the foundation for forming the bipolar zero position gain adjustable amplifier and the analog signal conditioner. The invention has wide application range and relatively high use value.

Description

technical field [0001] The invention relates to a bipolar amplifier with adjustable zero position and gain and an analog signal conditioner, especially a voltage amplifier with adjustable positive and negative bipolarity and adjustable zero position and a temperature compensation and non-polarity amplifier realized by an operational amplifier. An analog signal conditioner for linear correction belongs to the field of signal conversion operation and automatic control. Background technique [0002] Amplifying circuits are the most commonly used basic circuits of electronic circuits. [0003] However, ordinary amplifiers or amplifying circuits have fixed gain (magnification) or can only achieve unipolar adjustment, and do not have the function of bipolar positive and negative adjustable, and cannot achieve positive and negative bipolar adjustment of gain. It is inconvenient to use it in a circuit system that has not yet determined to adjust the positive and negative directions...

AI Technical Summary

Problems solved by technology

[0003] However, ordinary amplifiers or amplifying circuits have fixed gain (magnification) or can only achieve unipolar adjustment, and do not have the function of bipolar positive and negative adjustable, and cannot achieve positive and negative bipolar adjustment of gain. It is inconvenient to apply in the circuit system that has not yet determined the positive and negative direction of adjustment

[0004] Amplifiers are often used in measurement circuits, signal processing, signal conversion operations, etc. In some applications, amplifiers with positive or negative magnification and adjustable zero position are required, and ordinary amplifiers are difficult to meet the requirements.

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