Transistor as a Switch Manufacturer,Supplier and Exporter in India
Product Code : SCL-EELE-12321
Indian Lab Suppliers supplies the Transistor as a Switch (Product ID: 12321) as part of its electronics engineering lab equipment range. It studies the switching times of a transistor and uses it as a switch to energise a relay.
Quick Answer
A square wave from a sine/square oscillator drives the transistor from cut-off to saturation, and on a dual-trace 20 MHz CRO students measure the delay, rise, storage and fall times, and from them the turn-on and turn-off times. In the application circuit, two NPN transistors switch a relay, with an LED showing when it is energised. Supplies are a fixed 12 V DC and a 0-5 V DC variable source, both 100 mA and IC regulated. The oscillator and CRO are required and not included.
Key Specifications
| Parameter | Detail |
|---|---|
| Experiments | Delay, rise, on, storage, fall and off times; transistor as a switch driving a relay |
| Transistors | Two NPN |
| Supplies | 12 V DC at 100 mA, IC regulated; 0-5 V DC at 100 mA, variable |
| Indicator | LED for relay energised |
| Mains | 230 V ±10%, 50 Hz AC; ON/OFF switch, fuse and indicator lamp |
| Also required (not included) | Sine/square oscillator, dual-trace 20 MHz CRO |
Where This Is Used
Used in digital and pulse-electronics practicals. Related: Study of Recovery Time of Diodes with power supply and 1 meter (Product ID: 12269) and Current amplification factor of a transistor with Power Supplies and 3 digital meters (C.R.) (Product ID: 12290). Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Frequently Asked Questions
Which switching times are measured?
Delay, rise, on, storage, fall and off times.
What causes storage time?
Excess charge in the saturated base region that must be removed before the transistor turns off.
What shows the relay state?
An LED.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Engineering Lab Equipment
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