Dual-Slope-Integrator

作者: Herwig Dr. Dipl.-Phys. Labus

DOI:

关键词: AmplifierVoltage referenceIntegrating ADCCharge amplifierEngineeringControl theoryOp amp integratorIntegratorComparatorPassive integrator circuit

摘要: A dual-slope integrator is provided in the usual manner with input switches for a measured voltage and reference first counter having count capacitor N1, addition to integrating resistor condenser circuit an amplifier. The output of latter applied comparator clock-pulse generator produces counting pulses. According invention, second N2 so that two counters together have capacity N1 ×N2, switching keyed by clock pulses, further amplifier amplification N*2 provided, factor being approximately equal N2. connected holding through switch which triggered cadence pulses eliminate instabilities resulting from temperature dependent transient factors otherwise conventional integrator.