1/2/2023 0 Comments Multisim live free![]() Select the voltage prob The VCC and VEE are the notations used for the voltages at various common voltage terminals. Here we are measuring the voltage across R1. Place this on the wire that you would like to measure with reference to. Locate a reference probe on the left hand side of the screen 4. Locate the voltage probe icon at the left hand side of the screen 2. To measure voltage in Multisim we use probes. The Value tab in this component's properties dialog box contains the following: Parameter. It functions the same as the single pole double throw switch, except that the same control voltage controls two independent switches. The Voltage Controlled DPDT is double-pole, double-throw switch. This prevents high frequency oscillation from occurring when the timing. Currently the carrier signal is set to 87.5% duty cycle so that a narrow pulse (the remaining 12.5%) will be applied to the TRIGGER input of the 555. For a +Vcc/-Vcc modulation signal the control voltage varies between Vcc/4 and 3Vcc/4. When the modulating signal is at 0 V, the control voltage is at one half the supply voltage (Vcc/2). The 10 kOhm modulation resistor attenuates the modulating signal by a factor of 4. By default, digital components are connected to VCC and GND or VSS and VDD, simply place the appropriate source symbol anywhere on the schematic to power up the IC
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