PA Series Power Amplifier
The PA Series Switching Power Amplifier is SST's latest intelligent, networked, and digital PWM amplifier. It integrates DSP, FPGA, and ARM digital acquisition and control technologies and utilizes advanced high-voltage power devices as switching components. With high reliability, low noise, and minimal temperature drift, it meets the stringent requirements of magnetically sensitive specimens in electrodynamic vibration test systems. Powered by a 300 Vdc supply with a 100 Arms and 400 A peak PWM power module (SA-2010), the PA Series delivers precise, high-accuracy output voltage and drives inductive or resistive loads up to 20 kW, making it an ideal power solution for electrodynamic shaker systems.
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High-reliability power module with 4× power output and 49% higher power density. -
System noise reduced by an order of magnitude, ensuring near-zero interference with precision devices.
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High-accuracy output voltage delivering 100% effective force output.
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Programmable digital control interface supporting multi-parameter and multi-physics integration.
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Ultra-long-distance transmission with real-time remote status monitoring and alarms.
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Multiple ports and communication options for system status, protection, and diagnostics.
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HD touch display with an intuitive interface showing real-time operating conditions.
Rated Output Power: 20 kW
Peak Output Power: 80 kW
Rated Output Voltage: 200 Vrms
Rated Output Current: 100 Arms
Peak Output Current: 400 Apeak
Continuous DC Output Current: 50 Adc
Cooling: Air-cooled (intelligent automatic variable-speed system)
Operating Frequency Range: DC–5000 Hz
Output Noise (no input, 10 Hz–1 kHz): < 2 mVrms
Switching Frequency: 102 kHz
Signal-to-Noise Ratio: > 90 dB (10 Hz–1 kHz)
Total Harmonic Distortion (1 kHz, 100 Arms, resistive load): < 0.2%
DC Stability (voltage drift, 20 °C–35 °C): < ±2 mV/°C
Communication Interfaces: RS-485, USB
Input Impedance: > 10 kΩ
Parallel Current Sharing Error: < 1%
Voltage Measurement Error: ≤ 1%
Current Measurement Error: ≤ 2%
MTBF: > 300,000 h
Load Type: Capacitive/Resistive/Inductive
