Single Phase Series Inverter with Power Supply Manufacturer,Supplier and Exporter in India
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Product Code : SCL-EELE-12903
Indian Lab Suppliers supplies the Single Phase Series Inverter with Power Supply (Product ID: 12903) as part of its electronics engineering lab equipment range. It is a two-SCR single-phase series inverter in which the load current oscillates in a resonant circuit and turns each SCR off naturally.
Quick Answer
The two SCRs are fired alternately through two 1:1 pulse transformers, driven by a logic pulse generator (hex inverter and quad 2-input AND ICs) and two NPN transistors. A centre-tapped inductor forms part of the resonant power circuit, and when the current in each half reaches zero the conducting SCR commutates by itself. A potentiometer sets the inverter frequency, which must stay below the circuit’s resonant frequency so that each SCR turns off before the other fires. The control side uses a 12 V DC, 100 mA regulated supply, a bridge rectifier provides the DC input, and the board runs from 230 V ±10%, 50 Hz mains.
Key Specifications
| Parameter | Detail |
|---|---|
| Power devices | 2 SCRs |
| Power circuit | Centre-tapped inductor; bridge rectifier for DC input |
| Pulse generation | Hex inverter IC, quad 2-input AND IC, 2 NPN transistors, 2 pulse transformers 1:1 |
| Control | Inverter frequency potentiometer |
| Control supply | 12 V DC, 100 mA regulated |
| Mains | 230 V ±10%, 50 Hz; ON/OFF switch, fuse and indicator lamp |
| Connections | 4 mm stackable patch cords, 0.5 m |
Where This Is Used
Studied with the SCR Parallel Inverter with Power Supply (Product ID: 12904) and the Single Phase Transistorised Bridge Inverter with Power Supply (Product ID: 12905). Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Frequently Asked Questions
How are the SCRs turned off?
By the natural current zero of the resonant circuit (load commutation).
Can the frequency be changed?
Yes, with the frequency potentiometer.
How many SCRs are used?
Two.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Engineering Lab Equipment
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