By Kenneth L. Ashley
The hands-on, simulation-based advent to analog electronics. Analog Electronics with LabVIEW is the 1st finished advent to analog electronics that makes complete use of computing device simulation. Kenneth L. Ashley introduces analog electronics via a sequence of theory/project sections, during which theoretical displays correlate without delay with circuit dimension and research initiatives. the result of experiments are used to extract machine version parameters utilized in next digital circuit research, delivering an important enhancement within the realizing of recent, computer-based electronic-circuit simulation. Readers will grasp not just the basics of analog electronics, but additionally information acquisition and circuit simulation with LabVIEW, uncomplicated circuit-solution computation with Mathcad, and circuit simulation with Cadence Schematics or catch. assurance contains: *Elementary analog circuit research, together with the resistor voltage divider and MOSFET DC gate voltage, MOSFET drain current-source identical, amplifier frequency reaction, and extra *Fundamentals of transistors and voltage amplification *Characterization of MOS transistors for circuit simulation *Common-source amplifiers, MOSFET source-follower buffer level, differential amplifier degree, and MOSFET present assets *Operational amplifiers: resistor damaging suggestions ways and capacitor-based functions *Development of a easy CMOS Operational Amplifier *LabVIEW instructional with emphasis on analog electronics, the discrete nature of compute information acquisition, and LabVIEW size VIs reminiscent of the autoranging DC voltmeter *Characterization of the BJT for circuit simulation together with linear modeling *BJT NPN common-emitter amplifier, together with emitter degeneration and current-source PNP load with emitter degeneration For these new to LabVIEW, the booklet additionally features a whole introductory educational with emphasis suitable to analog-electronics purposes. CD-ROM incorporated The accompanying CD-ROM contains a entire reproduction of LabVIEW 6 scholar version software program, besides all of the LabVIEW, Mathcad, and Schematics (or seize) records you must practice the experiments and routines during this publication, plus samples of all venture dimension and knowledge documents for dimension simulation.
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Additional info for Analog electronics with LabVIEW
In the following, the definition Veffn VDSsat = VGS – Vtno will be used. ) The PMOS has a counterpart, Veffp VSDsat = VSG – Vtpo. Veffp is a frequently recurring term in device and circuit analytical formulations. 2. Output and Transfer Characteristics of the MOSFET The equations used in the following to characterize the MOSFET transistor are from the SPICE Level 1 model. SPICE also has more detailed models in Level 2 and Level 3. These can be specified when running SPICE. However, the number of new model parameters, in general, in circuit simulation is practically boundless.
In this case, the length is roughly a constant and the channel resistance, for a given VGS, is independent of VDS. 1 where Rchan(VGS) is the resistance of the channel and is a function of VGS. Assuming that L' L, for a given VGS, Rchan(VGS), and thus ID, is approximately a constant for VDS VDSsat. Thus, the drain, in circuit terms, appears like a current source. In many modern MOSFET devices, this is only marginally valid. In the following, the definition Veffn VDSsat = VGS – Vtno will be used.
This resistance is actually part of the transistor and is between the drain and source of the transistor, but the circuit as given is equivalent, as the source is at ground. 4 Note that this form evolves from ideal transistor current, gmVgs, flowing through the parallel combination of the output resistance and RD. 5 Note that IDRD is the voltage drop across RD. For example, for a –10-V power supply, we choose IDRD 5 V. A measurement of λp for our devices will show that λp 1/20 V, which results in λpIDRD 1/4.
Analog electronics with LabVIEW by Kenneth L. Ashley