To add a title to the new axis, click in the chart area and select the green plus sign. To finish formatting this chart, we’ll add appropriate labels. Scroll down in the task pane to Number and reduces the decimal places to 2. Set the minimum bound to -0.2 and the maximum to 0.2. Switch to Axis Options with the bar chart icon:įor these data, a range of ☐.2 works well. With the task pane still open, click on the new axis. However, Excel always leaves extra empty space on both sides of an axis by default, so you can modify the axis as we did in Section 1 of this chapter. It also scales the sine wave to cover most of the chart area. This will add an additional axis on the right side of the chart. You can add a secondary axis so that the sine wave covers more of the chart by right-clicking on it, selecting Format Data Series, and choosing Secondary Axis from the task pane.
2n3055 transistor circuits dr r draw series#
The way of controlling power motor via simple push button realizes the use 2N3055 as a switching device and in the same way we can use 2N3055 in other transistor circuits.Currently, both data series are sharing a common y-axis, and the amplitude of the sine wave is small relative to the range of the first curve. With transistor going to high resistance state in OFF mode, the collector current also becomes zero bringing motor to stop. This motor will keep rotating until there will be base current.Īfter a certain time when the button is released the base current becomes zero and the transistor gets turned OFF. Having transistor acting as short circuit in ON state there will be collector current which flows through motor making it rotate. With this closed loop a current flows through base of transistor and with base current flow the transistor gets turned ON. When the button is pressed at certain time, the voltage V2 forms a closed loop with base-emitter of transistor as can be seen in circuit diagram. With no base current the transistor acts as open circuit and the entire supply voltage V1 will appears across it. Under initial conditions the button will be open and no current flows through the base of transistor. The 100Ω resistor is provided for limiting the current through base. The trigger source and power source must share a common ground for the circuit to work. Here we are going to use 2N3055 as a simple switching device to drive a motor and is in common emitter configuration.Īs show in circuit we are using a motor as the load and the gate signal for turning ON the transistor is provided by 5V source with button being the triggering device. The device has good amplifying factor and also the gain is almost linear making 2N3055 one of best solution for power amplifiers.Īs mentioned earlier the 2N3055 can be used for any NPN transistor applications but for understanding the functioning of device let us consider a simple application circuit as shown below. 2N3055 is one of the basic transistors available in the market for cheap and with features being suited for many applications.ĢN3055 is also used in audio power amplifiers. Operating temperature range: -65✬ to +200✬ĢN6673, 2N6675, complementary pair- MJ2955ĢN3055 is preferred when you want a simple switching device for medium power loads.Maximum voltage across collector and base: 100V DC.Maximum current allowed through base: 7A DC.
2N3055 is a general purpose NPN power transistor manufactured with the epitaxial base process, mounted in a hermetically sealed metal case.
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