MPD series multi-channel programmable DC power supply
•Output specifications: CH1/CH2: 0~30V/0~3A; CH3: 2.5V/3.3V/5V or 0~10V; CH4: 5V, 1A (MPD-4303S)
•Resolution: 1mV/0.1mA/1mW
•Tracking series/parallel mode
•Simultaneous display of power, current, and power
•Standard USB communication interface, compatible with SCPI and MODBUS protocols
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The MPD Series are multi-channel programmable linear DC power supplies, including models 3303-S, 3303-SA, and 4303-S. They support multiple independent outputs (e.g., CH1/CH2: 0~30V/0~3A; CH3/CH4: 2.5V/3.3V/5V or 0~10V), adapting to multi-device synchronous testing scenarios. A key highlight is their flexible output modes, supporting three operating modes: independent, series (max. 64V), and parallel (max. 6A) to meet diverse power requirements. Resolution reaches 1mV/0.1mA/1mW, with voltage ripple ≤3mVrms and load regulation ≤0.01%+3mV, ensuring stable and clean output. Operation is convenient with a 5-digit LED display and silicone keys with indicators, supporting 4 groups of parameter storage and recall; the knob can switch between coarse and fine adjustment (FINE mode). Equipped with over-voltage protection (OVP), over-current protection (OCP), and over-temperature protection, an intelligent temperature-controlled fan reduces noise. A standard USB communication interface, compatible with SCPI and MODBUS protocols, facilitates remote control. With dimensions of 210×130×265mm and a 3-year warranty, it is suitable for electronic R&D, automated testing, and other scenarios.
| Model | MPD-3303S | MPD-3303SA | MPD-4303S | ||||||||
| Output | Channel
Voltage Current |
CH1 | CH2 | CH3 | CH1 | CH2 | CH3 | CH1 | CH2 | CH3 | CH4 |
| 0~30V | 0~30V | 2.5/3.3/5.0V | 0~30V | 0~30V | 0-5V | 0~30V | 0~30V | 0-5Vor5.001V~10V | 0~5V | ||
| 0~3A | 0~3A | 0~3A | 0~3A | 0~3A | 0~3A | 0~3A | 0~3A | 0~3Aor0~1A | 0~1A | ||
|
Constant voltage mode |
Change rate | Voltage variation rate ≤ 0.01%+3mV
Load variation rate ≤ 0.01%+3mV(rated current ≤ 3A) ≤ 0.02%+5mV(rated current>3A) |
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| Ripple&Noise | 1mVrms(5Hz~1MHz) | ||||||||||
| Recovery time | ≤100 μS (load variation 50%, minimum load 0.5A) | ||||||||||
| Temperature coefficient | ≤ 300ppm/ ℃ | ||||||||||
| Output range | 0~rated voltage, continuously adjustable | ||||||||||
| Constant current mode | Change rate | Voltage variation rate ≤ 0.2%+3mA Load variation rate ≤ 0.2%+3mA | |||||||||
| ripple current | ≤ 3mArms | ||||||||||
| Output range | 0~rated current, continuously adjustable | ||||||||||
|
Tethered tracking mode |
Parallel variation rate | Voltage variation rate ≤ 0.01%+3mV
Load variation rate ≤0.01%+3mV (rated current ≤ 3A) ≤ 0.02%+5mV (rated current>3A) |
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Tandem variation rate |
Voltage variation rate ≤ 0.01%+5mV
Load variation rate ≤ 300mV Tracking error ≤ 0.5%+10mV(10-30V no-load) Connected load ≤ 300mV) ≤ 0.5%+30mV (0-9.99V no-load) Connected load ≤ 300mV |
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| Tracking error | ≤0.5%+10mV | ||||||||||
|
Meter header |
Display | Voltage: 5 bits 0.4 “LED display
Current: 5 bits 0.4” LED display Power: 5 bits 0.4 “LED display |
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| Resolving power | Voltage:1mV
Current: 0.1mA Power: 1mW |
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| Programming accuracy (25+5°) | Voltage: + (0.03% reading+10 bits)
Current: + (0.3% reading+10 bits) |
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| Reading accuracy (25+5 °C) | Voltage: ±(0.03% reading+10 bits)
Current: ± (0.3% reading+10 bits) |
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CH3 specifications |
Output voltage | (2.5V/3.3V/5V)±8% | 0-5V | 0~5V/5~10V | |||||||
| Output current | 3A | 0-3A | 0~3A/0~1A | ||||||||
| Change rate (25+5 °C) | Voltage variation rate ≤ 0.01%+3mV
Load variation rate ≤0.01%+3mV |
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| Ripple&Noise | ≤1mVrms (5Hz~1MHz) | ≤1mVrms (5Hz~1MHz) | ≤2mVrms (5Hz~1MHz) | ||||||||
| Lock key function | √ | ||||||||||
| Save/Recall | 4groups | ||||||||||
| Power Supply | AC 100V/120V/220V/230V±10%,50/60Hz | ||||||||||
| Size&Weight | MPD-3303S(A):210*130*265mm ;About7Kg MPD-4303S: 210*130*265mm ; About 8kg | ||||||||||
| Standard Accessories: | Power Cable*1PC, Test Lead*3PC, USB, User Manual |
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| Optional Accessories (Manufacturer installed only): | LAN, RS-232 |