To Study the Behavior of Light Emitting Diode (LED) with power supply and 2 meters (C.R.) Manufacturer,Supplier and Exporter in India
Product Code : SCL-EELE-12245
Indian Lab Suppliers supplies the To Study the Behavior of Light Emitting Diode (LED) with power supply and 2 meters (C.R.) (Product ID: 12245) as part of its electronics engineering lab equipment range. It is a self-contained board for studying light emitting diodes on DC and AC, plotting their forward characteristics and driving a seven-segment display.
Quick Answer
Students operate an LED first on DC and then on AC, where it lights only on the forward half-cycles. They plot forward voltage against current for red, green, yellow and bicolour discrete LEDs and compare the turn-on voltages of the colours, then light the segments of a common-anode seven-segment display to form digits. Built-in supplies are 9 V DC at 100 mA (IC regulated) and 12 V AC at 100 mA. Readings come from a 3½-digit DC voltmeter (2 V range) and a 3½-digit DC current meter with 20 mA and 200 mA ranges, and a wire-wound potentiometer sets the current.
Key Specifications
| Parameter | Detail |
|---|---|
| LEDs | Red, green, yellow and bicolour discrete |
| Display | Seven-segment, common anode |
| Supplies | 9 V DC at 100 mA, IC regulated; 12 V AC at 100 mA |
| Voltmeter | Digital, 3½ digit, 2 V DC |
| Current meter | Digital, 3½ digit, 20 mA / 200 mA DC |
| Control | Wire-wound potentiometer |
| Mains | 230 V ±10%, 50 Hz AC; ON/OFF switch, fuse, jewel light |
| Other apparatus | None required |
Where This Is Used
Used in school and college electronics practicals on opto devices. Related: Opto electronic devices characteristics with power supply and 3 meters (2 Multirange) (Product ID: 12225) and Semiconductor Characteristics (Product ID: 12198). Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Frequently Asked Questions
Which LED colours are included?
Red, green, yellow and bicolour.
Does it show LED operation on AC?
Yes, from the built-in 12 V AC supply.
What type of seven-segment display is fitted?
A common-anode LED display.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Physics Lab Equipment
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