The AGC driver, a close loop feedback amplifier, operates a broad range of resonant optical scanners and resonant optical choppers at their natural frequency. The AGC driver has an Automatic Gain Control circuit which automatically regulates the motion amplitude of the resonant device. It improves amplitude stability by approximately 10 times compared to the unregulated drivers and provides precise control for a wide temperature range.
Controls
Both sine wave and TTL level square wave are provided as reference signals.
A trimpot control permits the user to adjust the phase of the reference signals with respect to the position of the mirror or the vane. The adjustable range is 180°.
A second trimpot provides amplitude adjustment in the range of 10% to 100% of the full amplitude.
Specifications
| Input power | +/-12V to +/-15V DC, 0.3 Amp max. for the AGC-PC 110V or 220V AC, 10W for AGC-110 and AGC-220 |
| Frequency range | 5 Hz to 20 KHz |
| Amplitude regulation | 0.01% or better typical (depending on temperature range) |
| Amplitude adjustment range | 10% to 100% of full amplitude |
| Reference output | Sine and TTL level square wave |
| Phase adjustment range | 180 degrees |
| Voltage control input | 0V to 5Vdc input into 10K ohm for the AGC-VC |
ORDERING INFORMATION
TYPE [AGC-110, AGC-VC-110, AGC-220, AGC-VC-220, AGC-110/220, AGC-VC-110/220, AGC-PC, AGC-VC-PC], per customer specifications.
