Method of Decommission of Temperature Drift in the Current of Nular Status in Two-Temperature Current Backlitters
Keywords
Abstract
The method of reducing the temperature drift of zero displacement current in two-stroke current amplifiers is proposed, which is based on the introduction of structural redundancy in electronic devices, in particular, in current-voltage converters, built on two-stroke current amplifiers. The construction of two-stroke symmetrical current amplifiers used for constructing analog signal converters based on the method of reducing temperature drift and input current is analyzed. The proposed schemes of two-stroke symmetric current amplifiers are considered. The influence of the input current is reduced. The analytical expressions determining the components of the output currents of the input two-stroke cascade are obtained. The functioning of the scheme of blocks of balancing and amplification of currents of two-stroke symmetrical current amplifiers, which are used in intermediate and amplifying cascades of two-stroke symmetrical current amplifiers, is presented and analyzed. The analytical relations for calculation of low-signal amplification coefficients and transmission coefficients in the balance mode are derived. In addition, the expressions for the gain coefficients were obtained, and also the dependencies showing the change in the overall transmission coefficient within the range of the output signal are also given. The linear errors that arise as a result of these changes are analyzed. A schematic design of the induced converter current-current, current-voltage built with the use of integrated transistors is carried out. The recommendations for building on the basis of these two-stroke symmetrical current amplifiers of converters are current-current and voltage-current, which makes it possible to use them in multichannel analog-digital converters. A comparative analysis of some variants of the implementation of the given method for the case of the use of the PPSS without amplification and with the amplification of the current in the input cascade is carried out.
