Single phase Half Controlled Symmetrical & Asymmetrical Bridge Converter with Power Supply Manufacturer,Supplier and Exporter in India
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Product Code : SCL-EELE-12897
Indian Lab Suppliers supplies the Single phase Half Controlled Symmetrical & Asymmetrical Bridge Converter with Power Supply (Product ID: 12897) as part of its electronics engineering lab equipment range. It compares the symmetrical and asymmetrical arrangements of a single-phase half-controlled bridge converter.
Quick Answer
A half-controlled bridge uses two SCRs and two diodes: in the symmetrical form the two SCRs share a common cathode, one in each leg, while in the asymmetrical form both SCRs are in one leg and both diodes in the other, so the diodes carry the freewheeling current. Firing pulses come from op-amp and logic-gate circuits (quad XOR, 3-input AND, 2-input AND and hex inverter ICs) with three NPN transistors and two 1:1 pulse transformers, and a potentiometer sets the reference voltage that fixes the firing angle. Supplies are a 230 V, 200 mA isolation transformer, 6 V AC, 100 mA and ±12 V DC, 100 mA regulated, and the load is a 40 W lamp. The board weighs about 7 kg and runs from 230 V ±10%, 50 Hz mains.
Key Specifications
| Parameter | Detail |
|---|---|
| Experiments | Symmetrical and asymmetrical half-controlled bridge |
| Power devices | 2 SCRs |
| Firing | 2 op-amp ICs; XOR, AND and inverter logic ICs; 3 NPN transistors; 2 pulse transformers 1:1 |
| Control | Reference-voltage potentiometer |
| Supplies | Isolation transformer 230 V AC, 200 mA; 6 V AC 100 mA; ±12 V DC 100 mA regulated |
| Load | 40 W lamp |
| Mains | 230 V ±10%, 50 Hz; ON/OFF switch, fuse and indicator lamp |
| Weight / size | About 7 kg; W 412 × H 150 × D 310 mm |
Where This Is Used
Used alongside the Single phase fully-controlled Bridge Converter (Product ID: 12892) and the SCR Converters and Reactive Loads with Power Supply (Product ID: 12883). The load side is at mains voltage: switch off before rewiring. Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Frequently Asked Questions
What differs between the two arrangements?
The position of the SCRs, which changes the freewheeling path and how long each device conducts.
How is the firing angle set?
With the reference-voltage potentiometer.
What load is supplied?
A 40 W lamp.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Engineering Lab Equipment
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