Analog electronics with LabVIEW by Kenneth L. Ashley

By Kenneth L. Ashley

The hands-on, simulation-based advent to analog electronics. Analog Electronics with LabVIEW is the 1st entire advent to analog electronics that makes complete use of desktop simulation. Kenneth L. Ashley introduces analog electronics via a sequence of theory/project sections, during which theoretical displays correlate at once with circuit dimension and research tasks. the result of experiments are used to extract gadget version parameters utilized in next digital circuit research, delivering an important enhancement within the knowing of recent, computer-based electronic-circuit simulation. Readers will grasp not just the basics of analog electronics, but additionally facts acquisition and circuit simulation with LabVIEW, simple circuit-solution computation with Mathcad, and circuit simulation with Cadence Schematics or trap. insurance comprises: *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 resources *Operational amplifiers: resistor unfavourable suggestions techniques and capacitor-based functions *Development of a simple CMOS Operational Amplifier *LabVIEW instructional with emphasis on analog electronics, the discrete nature of compute facts acquisition, and LabVIEW size VIs corresponding to 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 e-book additionally incorporates a entire introductory educational with emphasis appropriate to analog-electronics functions. CD-ROM integrated The accompanying CD-ROM encompasses a whole replica of LabVIEW 6 scholar variation software program, besides all of the LabVIEW, Mathcad, and Schematics (or trap) records you want to practice the experiments and routines during this publication, plus samples of all undertaking dimension and knowledge documents for size simulation.

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The device consists of a three-layer structure of metal–oxide–semiconductor (MOS). A two-terminal MOS structure (connections to metal and semiconductor) is essentially a parallel-plate capacitor. , with respect to the metal contact on the underside of the p-type semiconductor body (or substrate)], negative charges are induced under the oxide layer in the semiconductor. When VG (with respect to the semiconductor body) exceeds the threshold voltage, Vtno, a channel of free-carrier electrons forms under the oxide; that is, the onset of the channel occurs when VG = Vtno.

The three-terminal transistor symbol implies that the body and source are connected. 3. Mathcad-generated output characteristic for the NMOS transistor. The plot illustrates the linear and active regions. The linear region is also called the triode region or presaturation region. 8 V. Also plotted is the ideal characteristic with zero slope in the active region. The output-characteristic equation in the linear region corresponds to VDS ranging from the condition of Fig. 1(b) to that of Fig. 1(c).

15 The effect is to reduce the current through RS and RD and thus reduce the circuit transconductance of the common-source amplifier stage. 8)]. In general, the complete circuit includes, in addition, the body-effect transconductance current source of Figs. 4. The omission of this current source in Fig. 6 implies that Vsb = 0 because the source and body are connected. This connection is possible to implement in special cases such as in some of our MOSFET lab projects where only one transistor on the chip is used or for the case of a differential stage where the source of two transistors is at the same node.

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