SPD4000X — Four-output Programmable Linear DC Power Supply
Four-output programmable linear DC power supplies with three model configurations, 1 mV / 1 mA resolution, 4.3-inch graphical display, CH2/CH3 series/parallel operation, USB/LAN remote control and web-browser monitoring for multi-rail bench and automated test.
| Model | CH1 | CH2 | CH3 | CH4 | Total Power |
|---|---|---|---|---|---|
| SPD4323X | 0–6 V / 3.2 A | 0–32 V / 3.2 A | 0–32 V / 3.2 A | 0–6 V / 3.2 A | 240 W |
| SPD4121X | 0–15 V / 1.5 A | 0–12 V / 10 A | 0–12 V / 10 A | 0–15 V / 1.5 A | 285 W |
| SPD4306X | 0–15 V / 1.5 A | 0–30 V / 6 A | 0–30 V / 6 A | 0–15 V / 1 A | 400 W |
Key Features
Four Independent Outputs
Each SPD4000X model provides four independently controllable outputs, making it suitable for multi-rail embedded boards, analog front ends, RF modules and production fixtures that need several rails from one instrument.
CH2 / CH3 Series and Parallel Modes
The two main channels can be combined in series or parallel where higher voltage or higher current is needed, while the remaining channels continue to support auxiliary rails.
1 mV / 1 mA Resolution
The 5-digit voltage and current display gives fine setting and readback control for low-voltage digital rails, analog bias points and controlled power-sequencing work.
Graphical Waveform and Timer Display
The 4.3-inch 480 × 272 TFT-LCD shows real-time output changes and timer/list information, making multi-channel power behaviour easier to monitor during tests.
Remote Sense on High-current Channels
Remote voltage compensation helps correct cable drop on high-current channels, improving the voltage actually delivered at the DUT terminals.
USB, LAN and Web Control
USB and LAN interfaces support SCPI automation, LabVIEW integration and web-browser control for bench automation, validation rigs and production test setups.
Specifications
| Parameter | Unit | Value / Description |
|---|---|---|
| OUTPUT CONFIGURATIONS | ||
| SPD4323X | — | CH1/CH4: 0–6 V / 3.2 A; CH2/CH3: 0–32 V / 3.2 A; 240 W total |
| SPD4121X | — | CH1/CH4: 0–15 V / 1.5 A; CH2/CH3: 0–12 V / 10 A; 285 W total |
| SPD4306X | — | CH1: 0–15 V / 1.5 A; CH2/CH3: 0–30 V / 6 A; CH4: 0–15 V / 1 A; 400 W total |
| CONTROL AND ACCURACY | ||
| Resolution | — | 1 mV / 1 mA |
| Display | — | 4.3-inch TFT-LCD, 480 × 272, 5-digit voltage and current display |
| Setting accuracy | — | Voltage: ±(0.03% of reading + 10 mV); Current: ±(0.3% of reading + 10 mA) |
| Readback accuracy | — | Voltage: ±(0.03% of reading + 10 mV); Current: ±(0.3% of reading + 10 mA) |
| FUNCTIONS AND INTERFACES | ||
| Operation modes | — | Independent outputs; CH2 and CH3 series / parallel combinations |
| Response time | µs | < 50 |
| Protection | — | OVP / OCP |
| Interfaces | — | USB and LAN standard; optional USB-GPIB module; SCPI and LabVIEW driver support |
| Other functions | — | Real-time waveform display, timer/list operation, save/recall and web-browser control |
Applications
Multi-rail Prototype Power
Power MCU, FPGA, memory, analog and interface rails simultaneously from one compact supply.
Positive and Negative Rail Setup
Use multiple outputs for op-amp, sensor, ADC/DAC and bias-rail validation without stacking separate bench supplies.
Power Sequencing and Functional Test
Use SCPI control, list operation and remote monitoring for automated DUT power-up, margining and acceptance tests.
Converter and Load-stage Biasing
Provide control, gate-drive, auxiliary and main-rail supplies during converter prototype and validation work.
Advanced Teaching Lab PSU
Useful for electronics labs that need several isolated outputs for complex experiments and project work.
Long-duration Monitoring
Real-time waveform display and save/recall support repeated validation setups and long-duration bench tests.
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