#Switch in multisim series
Also note that the ammeter must be connected in series with the circuit. To use the multimeter to measure current, the COM and A jacks must be used, not the V ->|- jack as used earlier. The digital I/O pins are on the top right terminal strip. The transistor itself will be controlled by the ELVIS digital writer, which would not normally be able to power a fan.Ĭonstruct the circuit shown in figure 14. In this lab, a NPN transistor will be used to drive a fan. Another way to think of it is that the transistor is used to amplify the chip’s limited current output to power a much larger load. Here the transistor is used as an electronic relay. (Si no aparece haga View> Show simulate Switch). Transistors can be used as switches when we want to connect a load to an integrated circuit that the ic cannot drive. ya tiene instalado por lo menos el Multisim demo en su computadora y que ya lo tienen predispuesto. In addition, Multisim includes generic models for MOSFET switches and IGBTs. Examples of these switches are under the transistors group in Multisim’s database. We will mimic the output of a digital chip here with the digital writer. Also Multisim comes with over 500 new Infineon MOSFETS, with up to 3 levels of model complexity for intricate power applications such as thermal modeling. The natural current amplifying ability of the transistor allows us to switch on and off a much larger current using a source that has limited current drive capability, e.g. A high input voltage or base current turns the transistor on. A low input voltage or current turns the collector current off.
#Switch in multisim software
Here we use the transistor as a switch to turn on and off a load, which can be an LED, a fan or a speaker. Multisim is described as software integrates industry-standard SPICE simulation with an interactive schematic environment to instantly visualize and analyze electronic circuit behavior and is a Circuit Simulator in the Education & Reference category.
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