The Motech PPS-1204 is a dual-channel programmable DC power supply built on linear technology for benchtop testing, prototyping, and laboratory applications. Each channel delivers 0–30V at 0–3A with 10mV voltage and 1mA current programming resolution. Load regulation holds to 0.01% + 1mV (voltage) and 0.1% + 3mA high/0.1% + 6mA low (current). Line regulation maintains 0.01% + 3mV and 0.1% + 2mA high/0.1% + 3mA low. Ripple and noise measure 2mV RMS (typical) and 1mA RMS (typical). Programming accuracy reaches 0.1% + 2LSB for voltage and 0.2% + 5LSB for current, with matching readback accuracy. Load transient recovery completes within 50µs.
Technical Specifications
• Output: 0–30V, 0–3A per channel
• Programming Resolution: 10mV (voltage), 1mA (current)
• Load Regulation: 0.01% + 1mV (V); 0.1% + 3mA high / 0.1% + 6mA low (I)
• Line Regulation: 0.01% + 3mV (V); 0.1% + 2mA high / 0.1% + 3mA low (I)
• Ripple & Noise: 2mV RMS (V), 1mA RMS (I) typical
• Programming Accuracy: 0.1% + 2LSB (V), 0.2% + 5LSB (I)
• Readback Accuracy: 0.1% + 2LSB (V), 0.2% + 5LSB (I)
• Temperature Coefficient: 100ppm + 10mV (V), 200ppm + 4mA (I)
• Load Transient Recovery: 50µs
• Programming Speed: 10ms up / 15ms down
• Output Isolation: ≤240Vdc from chassis ground per terminal
• Operating Temperature: 0°C to 40°C
• Dimensions: 8.4″ × 5.2″ × 15.7″
• Weight: 18 lbs
– Key Features
• Dual independent channels with tracking function
• Remote sensing for load wire compensation
• Programmable overvoltage and overcurrent protection
• Output enable/disable control
• Power-off memory retention
• Programmable up/down fine tuning
• Analog external programming via 0–10V control
– Interfaces
• GPIB interface (SH1, AH1, T6, TE0, L4, LE0, RL1, SR0, PP0, DC1, DT0, C0, E1)
• Analog voltage control requiring two isolated sources for simultaneous programming
