QD-2000 Servo Amplifier
Compact and Cost Effective Galvanometer Power Supply
Nutfield Technology’s QuantumDrive-2000 Servo Amplifier is a compact, powerful galvanometer power supply, giving greater performance at the most cost effective price. As the smallest class-0 servo amplifier available, the QD-2000 features a single output power amp configured for maximum performance and electrical efficiency. Quiescent current is little over half of that needed for the high power push-pull QD-4000 amplifier. This galvanometer power supply leverages lower component count, higher signal-to-noise for high accuracy positioning and good temperature stability.
Exceptional performance is achieved with PID servo architecture plus advanced terms for extra stability, speed and control. As with traditional systems, a notch filter is selected and tuned for each unique mirror-galvo combination to maximum system bandwidth. The result is faster, more accurate scanning.
Lower cost and optimized for high volume OEM applications, the design of the QD-2000 does not sacrifice on performance or features. Onboard status LEDs provide servo status and fault indications. A diagnostic port is available for test, development and monitoring needs. Circuit features include soft start/stop operation, open circuit AGC monitor and under-voltage power supply protection. The QD-2000 also features TTL compatible remote enable and status I/O.
QD-2000 Servo Amplifiers are tested and tuned with serial number matched galvanometer and mirror to customer specifications. Together with Nutfield Technology’s scanners, the QD-2000 galvanometer power supply is a laser solution that is the strongest and most affordable in its class.
Contact Nutfield Technology for assistance with identifying a solution for your scanning application.
Features
Key features of the QD-2000 Servo Amplifier are:
Diagnostic Port:
Position
Position Error
Velocity
Current
AGC Monitor
Analog Input (±5)
Integrates with all Nutfield galvos
Single axis and Open-Frame configurations provided with a connector kit
Remote Enable
Ready Status Output
Direction Invert Jumper
Up to 30W Output Power
Specifications
| Specifications:>strong | Value |
|---|---|
| Power Requirements: | QD-2000 Servo Amplifier |
| Input Voltage | ±15 VDC |
| < 100mV Ripple < 0.5% DC to 30 MHz Noise |
|
| ,0.5% DC to 30 MHz Noise | |
| Maximum Drive Current: | |
| Peak | 10 Amperes |
| RMS | 3 Amperes |
| Quiescent Current | 220mA (servo enabled, galvo resting) |
| Gain Drift | up to 20 ppm/°C (3 sigma) |
| Offset Drift | up to 26 µrad/°C (3 sigma) |
| Inputs: | |
| Command Input Range | ±5 volts |
| Command Input Scale Factor: | 1:1 |
| Command Input Impedance | 200K ohms (Differential) |
| 100K ohms (Single Ended) | |
| External Enable | TTL (put low to disable drive) |
| Servo Ready | TTL |
| Diagnostic Outputs: | |
| Position | Analog (1V/V) |
| Position Error | Analog (1V/V) |
| Velocity | Analog |
| AGC Voltage | Analog (DC) |
| Coil Current | Analog (1V/A) |
| Environmental: | |
| Operating Temperature | 0°C to +45°C (with appropriate cooling) |
| Storage temperature | -10°C to +60°C |
| Humidity | non-condensing |
| Mechanical: | |
| Weight | 49 g (1.7 oz.) |
| Note: Specifications are in degrees optical (2 x mechanical degrees) after a 2-minute warm-up period. Specifications subject to change without notice. | |
Applications
Nutfield Technology’s QD-2000 Servo Amplifiers are tested and tuned with a matching galvanometer and mirror to custom specifications. Together, our galvo-based scanning solutions are used in countless applications from medical diagnostics and dental imaging, to laser projection and imaging, and so on.
Accessories
Accessories available for the QD-2000:
Optional Diagnostic Cables available
Connector Kit available