This document discusses AC voltage controllers and provides references for further reading on the topic. It mentions AC voltage controllers six times without providing any additional details and includes two references books on power electronics and circuits that likely contain more information about AC voltage controllers.

1. AC Voltage
Controller

2. AC Voltage Controller

3. AC Voltage Controller

4. AC Voltage Controller

5. AC Voltage Controller

6. AC Voltage Controller

7. AC Voltage Controller

8. References
1. “Power Electronics” By Dr. P. S. Bimbhra, Khanna Publication.
2. “Power Electronics-Circuits, Devices and Applications” By M. H. Rashid, Pearson Publication.