Electronics SC410 & SC412 Agilent VEE Supplement to the
Contents
1. iiy Agilent Technologies Na EducatorsCorner com Experiments Electronics S0410 amp SC412 Agilent VEE Supplement to the Laboratory Manual By Moe Wasserman College of Engineering Boston University Boston Massachusetts Equipment Required e Agilent 34401A Digital Multimeter e Agilent 33120A Function Arb Generator Introduction In each of the following experiments you will write a program to instruct the instruments on the lab bench to perform prescribed measurements on your circuits In some cases your program will analyze the data received by the instruments and will present the results on the computer screen in graphical and or tabular form The reason why the word write is in quotation marks is that the programming language you will use Agilent VEE has a purely graphical rather than text interface Conventional program statements will be replaced by objects or icons on the computer screen and the order of execution of the objects will be determined by wires that connect the icons Before performing any of these experiments you should read the introductory document entitled Using Agilent VEE then work through the four exercises that you will find there The first step in programming any Agilent VEE controlled experiment is to place on the screen an Panel Driver object for each of the instruments to be used These objects will be used to set the default configurations for the instruments they will not be c2. WDN lt n
3. onnected by wires to anything else on the screen Instructions for setting the defaults will be given in each experiment The settings will be made on the Main Panel of each object unless another panel is designated Only the necessary settings will be specified all others are immaterial Recall that there is no instrument panel object for the triple power supply you must use a Direct I O object All valid commands for this instrument as well as for the other instruments on your bench will be found in the User s Manual for each instrument We use a Direct I O driver here because no other driver is available but one could be used for any of the instruments on the bench They respond faster than the other kinds of driver and they can issue commands that are not accessible from the instrument panels These advantages come at the cost of knowing the commands for each instrument and entering them in the appropriate sequence As is often the case a program may not perform as expected on the first try If this occurs two useful debugging tools are available They can be activated with the menu commands Debug gt Show Data Flow and Debug gt Show Execution Flow To use these to best advantage set the slowest speed for these processes with File gt Default Preferences on the General tab in the Debug group click the Data Flow Rate arrow to show the drop down list Set the rate to 1 Slowest iiy Agilent Technologies Na EducatorsC
4. orner com Experiments When the program is run you will see symbols representing data and commands moving along the wires between objects and each object will be highlighted when it is active Operating in this mode is also useful to assist you in understanding how Agilent VEE works But don t use these options all the time because they slow down execution considerably Always begin an experiment setup by clicking the reset button on each instrument panel object If you don t the instrument may not be in the proper operating mode when you run the experiment The following symbols will be used in the circuit schematics TPS Triple power supply FG Function Generator p6V 6 volt output Multimeter in TPS Triple power supply ammeter mode p25V 25 volt output Multimeter in TPS Triple power supply voltmeter mode n25V 25 volt output N 4 x0 oa Dual channel oscilloscope Instructions will be given in considerable detail for setting up and running the program for the first experiment only It is assumed that you will then be familiar with the basic operations of Agilent VEE Electronics SC410 amp SC412 Experiments Experiment No l V Characteristics of Semiconductor Diodes Diode Limiters Small Signal Behavior of the pn Junction Diode Transistor Curve Tracer MOSFET Parameters Transistor Inverters MOSFET Transconductance Frequency Response Feedback Amplifiers Using Op Amps Schmitt Trigger Schmitt Trigger II ODOOANDAAR
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