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CH-SYS-2C Resonant Choppers Phase Locked In Primary And Secondary Mode

Updated:2026-07-27

Brand: EOPC
Model:CH-SYS-2C
Description: The PLD-2C driver phase locks two choppers. The [sub]system consists of two resonant optical choppers (type CH), chopper "A" and chopper "B", in a primary/secondary mode, to provide ultra stable modul
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Product Details

CH-SYS-2C Resonant Choppers Phase Locked In Primary And Secondary Mode Description:

PLD-2C Datasheet

The PLD-2C driver phase locks two choppers. The [sub]system consists of two resonant optical choppers (type CH), chopper "A" and chopper "B", in a primary/secondary mode, to provide ultra stable modulating beam motions. The system can be used as a "stand alone" unit, in the laboratory or as a portable instrument, or incorporated into a larger instrument or system.

Chopper "B" is phase locked to chopper "A" (the secondary is locked to the primary). The phase relationship to the master is factory set to customer requirement (0° to 360°) and is front panel adjustable in a range of +/-45° min. The driver can be a fully integrated driver with front panels controls and internal power supplies or a printed circuit board level driver. The dimensions of the cased driver are: 12" × 10" × 3.8". The PLD-2C-PC driver is a printed circuit board level driver, which requires an external +/-15V DC power supply.

Features and Advantages：

Locks two tuning fork choppers in primary/secondary mode
10 Hz to 16 kHz frequency range
Both sine wave and square wave reference signals
Clock stability +/-50 PPM
0.01% phase stability
Position output
0.01% or better amplitude stability

Product Options:

PLD-2C-PC	Board level driver that requires an external +/-12V to +/-15V dc power supply.
PLD-2C-110	Cased driver (12" × 10" × 3.8") operating from a line voltage of 110V AC.
PLD-2C-220	Cased driver (12" × 10" × 3.8") operating from a line voltage of 220V AC.
PLD-2C-110/220	Cased driver (12" × 10" × 3.8") with a line switch selector for operating from a line voltage of 110V or 220V AC.

FRONT PANEL CONTROLS:

POWER	Power switch to turn the drive "ON"
LOCKED MODE	Choppers are phase locked in a primary/secondary mode
OSCILLATOR MODE	Choppers are self oscillating at their resonant frequency (not locked)
PHASE CONTROL POT	Phase adjustment of choppers in relationship to each other, +/- 45 degrees
MONITOR A & B	Chopper position output for each chopper, BNC connectors
AMPLITUDE A & B	Amplitude adjustment POT for each chopper
OUTPUT A & B	Output connector to interconnect to each chopper

SPECIFICATIONS:

Frequency range	10 Hz to 16 kHz
Monitor	Analog position output, +/-5V max. 1K ohm max load for each chopper
Phase adjustment range	+/-45° min.
Phase stability	0.01%
Phase relationship	Factory set to customer specifications
Operating temperature range	Room temperature only
Power input	110V ac or 220V ac, 50-60 Hz, 20W