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Drivers for Resonant Modulators

ED Driver

 The ED driver is a closed-loop oscillator that operates the CH line of resonant choppers at their natural resonant frequency. The ED driver provides a square wave reference output signal and has a frequency range of 5 Hz to 20 kHz.




AGC Driver

 The AGC driver operates the CH line of resonant scanners at their natural frequency. It has Automatic Gain Control Circuitry which automatically regulates the motion amplitude of the resonant device. The AGC driver improves amplitude stability by approximately 10 times compared to the unregulated models and also provides precise control over a wide temperature range. The AGC-VC driver control the amplitude of the resonant device by an external input voltage (0-5 V). The AGC-EXT driver sets the frequency of the resonant device by an external clock input.


PLD-1C Driver

 The PLD-1C driver phase locks a resonant tuning fork chopper to an external clock signal. The phase relationship to the clock is factory set to the customer's requirements (0° to 360°) and is front panel adjustable over a range of ±45° min. The PLD-1C driver is a fully integrated driver with front panel controls and internal power supplies. The PLD-1C-PC driver is a printed circuit board level driver which requires an external ±15 V dc power supply.


PLD-2C Driver

 The PLD-2C driver phase locks two resonant tuning fork choppers (chopper "A" and chopper "B") in a Master/Slave mode. Chopper "B" is phase locked to chopper "A" (the slave is locked to the master). The phase relationship to the master is factory set to the customer's requirements (0° to 360°) and is front panel adjustable over a range of ±45° min. The PLD-2C driver is a fully integrated driver with front panel controls and internal power supplies. The PLD-2C-PC driver is a printed circuit board level driver which requires an external ±15 V dc power supply.


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