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Power Electronics Testing with KUAIQU
30V 20A 600W R-SPS3020S High Power
DC Supply with OVP
The KUAIQU R-SPS3020S is a 30V 20A 600W high power DC supply designed for power electronics testing, electronic circuit development, power module evaluation, and laboratory bench testing. With an adjustable 0–30V output, up to 20A current, and 600W maximum output power, it provides a flexible DC source for test circuits and electronic devices that require different voltage and current conditions.
For power electronics testing, the ability to adjust and monitor the DC supply conditions is important when evaluating circuits under different operating points. The R-SPS3020S combines precision voltage and current adjustment with a four-digit display for voltage, current, and power readings. OVP and OCP protection, output ON/OFF control, M1–M3 memory settings, panel lock, and front and rear output connections provide practical control functions for laboratory development, prototype testing, and repeated power electronics test setups.
Key Features
30V 20A 600W High Power DC Supply
The R-SPS3020S provides an adjustable 0–30V DC output, up to 20A current, and 600W maximum output power. This combination gives power electronics engineers a wider operating range when testing low-voltage, higher-current circuits, power modules, electronic assemblies, and other compatible DC loads.
The adjustable output allows the same DC supply to be used for different test conditions instead of requiring a fixed-voltage source for every test setup.
Adjustable Voltage and Current for Power Electronics Testing
The voltage and current settings can be adjusted according to the requirements of the connected test circuit. With a voltage setting resolution of 10mV and current setting resolution of 10mA, the R-SPS3020S provides detailed adjustment when establishing different DC test conditions.
This is useful when comparing circuit behavior at different supply settings, checking component or module operation within a defined voltage range, or repeating a test at a previously used operating condition.
Four-Digit Display for Voltage, Current, and Power Monitoring
The four-digit display provides voltage, current, and power readings during operation. This allows users to observe the electrical conditions of the connected test circuit directly from the DC supply.
For power electronics testing, monitoring these three values helps users understand the actual power being delivered to the test setup while adjusting the output conditions.
Precision Encoder Adjustment
The precision encoder provides controlled adjustment of the voltage and current settings. This makes it easier to make gradual changes to the output during circuit development and power electronics testing.
The encoder-based adjustment is particularly useful when the test requires users to move between different voltage or current settings while observing the corresponding electrical readings on the display.
OVP and OCP Protection
The R-SPS3020S includes Over Voltage Protection and Over Current Protection. These protection functions provide an additional layer of protection when abnormal voltage or current conditions occur during testing.
For power electronics test benches where different circuits, modules, or prototypes may be connected to the same DC supply, OVP and OCP can help reduce the risk associated with unintended output conditions.
Output ON/OFF Control
The output ON/OFF control allows users to enable or disable the DC output without changing the configured voltage and current settings.
This provides a practical way to prepare test parameters first and then apply power to the connected circuit when the test setup is ready. It can also be used when changing connections or preparing another test condition.
M1-M3 Memory for Repeated Test Conditions
The R-SPS3020S provides three memory groups, M1–M3, for storing commonly used settings.
When power electronics testing involves several frequently used voltage and current conditions, the memory function allows users to recall those settings more conveniently instead of manually configuring the same parameters each time. This is useful for repeated prototype evaluation and comparative testing.
Panel Lock for Stable Test Settings
The panel lock function helps prevent unintended changes to the configured settings during operation.
This can be useful when a power electronics test needs to run with a defined voltage and current condition, particularly when multiple test samples are evaluated using the same settings.
Front and Rear Output Connections
The R-SPS3020S provides front and rear output ports to accommodate different test bench configurations.
The front output is intended for currents below 5A, while the rear output can be used when operating at the full rated power. This allows users to select the connection arrangement according to the current requirements and physical layout of the test setup.
USB and Optional RS232/RS485 Communication Interfaces
The R-SPS3020S provides a standard USB interface, with RS232/RS485 available as applicable communication interface options.
These interfaces provide additional connection possibilities when the power supply needs to be connected with an external computer or test setup that supports the corresponding communication interface. The interfaces should be selected according to the actual product configuration.
Applications
Power Electronics Testing
The R-SPS3020S provides adjustable DC power for evaluating power electronic circuits under different voltage and current conditions. The 0–30V, 0–20A output range provides flexibility for a variety of low-voltage power electronics test setups.
Power Module Testing
The 600W output capability makes the R-SPS3020S suitable for providing DC power to compatible power modules during development and evaluation.
Users can adjust the voltage and current settings while monitoring voltage, current, and power readings to observe the electrical operating conditions of the test setup.
Power Converter Testing
The adjustable DC output can be used as an input source for compatible power conversion circuits and converter test setups.
Different DC input conditions can be established within the 0–30V output range, allowing engineers to evaluate circuit operation under multiple supply settings.
Switching Power Circuit Testing
The R-SPS3020S can provide adjustable DC input power for compatible switching power circuits and related development boards.
The precision encoder, four-digit display, and adjustable voltage and current settings allow users to configure and monitor the DC input conditions during laboratory testing.
Power Electronics Prototype Evaluation
During prototype development, engineers may need to test a circuit at different supply conditions before finalizing the design.
The R-SPS3020S provides adjustable voltage and current output, real-time voltage/current/power display, and memory settings that can be used to establish and repeat different prototype test conditions.
PCB and Power Circuit Testing
The DC supply can be used with compatible PCB test setups requiring an adjustable external DC source.
The output ON/OFF control provides convenient power application, while the panel lock can help maintain the configured settings during repeated PCB testing.
Electronic Circuit Development
The R-SPS3020S can serve as a bench DC source during the development of low-voltage electronic circuits and power-related prototypes.
Users can adjust the output according to the requirements of the circuit and observe voltage, current, and power readings while evaluating the test setup.
Repeated Power Electronics Testing
The M1–M3 memory function provides three groups for commonly used settings.
For test procedures that repeatedly use the same voltage and current combinations, stored settings can reduce repeated manual adjustment and help maintain more consistent test configurations.
Laboratory Power Electronics Experiments
The 30V 20A 600W output capability provides a flexible DC source for laboratory experiments involving compatible power electronic components, circuits, modules, and prototypes.
The adjustable output, display, protection functions, and output control make it suitable for general bench-based power electronics development and testing.
DC Load and Device Testing
The R-SPS3020S can provide adjustable DC power for compatible electronic devices and DC loads within its rated voltage, current, and power range.
Users can adjust the output and monitor the resulting voltage, current, and power values during the test.
Quality Check and Terms of Service:
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Package includes: DC Power Supply *1, Output Power Cord *1, Input Power Cord *1, User Manual *1, Warranty Card *1.
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Has passed CE & FCC Certification.
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All DC power supplies and accessories are inspected before shipment to ensure good quality.
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Customer support: Contact us with any questions, and we'll respond within 24 hours.
Technical Specifications
| Parameter |
Specification |
| Model |
R-SPS3020S |
| Product Type |
High Power DC Supply |
| Rated Voltage |
0–30V |
| Rated Current |
0–20A |
| Rated Power |
600W |
| Rated Test Environment |
0°C–40°C |
| Load Regulation Voltage |
≤0.1% + 10mV |
| Load Regulation Current |
≤0.1% + 2.5mA |
| Line Regulation Voltage |
≤0.01% + 2.5mV |
| Line Regulation Current |
≤0.1% + 2.5mA |
| Voltage Setting Resolution |
10mV |
| Current Setting Resolution |
10mA |
| Voltage Readback Resolution |
10mV |
| Current Readback Resolution |
10mA |
| Voltage Setting Accuracy |
≤0.05% + 10mV |
| Current Setting Accuracy |
≤0.01% + 10mA |
| Voltage Readback Accuracy |
≤0.05% + 10mV |
| Current Readback Accuracy |
≤0.01% + 10mA |
| Voltage Ripple |
≤200mVp-p / ≤20mVrms |
| Current Ripple |
≤20mArms |
| Ripple Test Frequency |
20Hz–20MHz |
| Rise Time, No Load |
≤150ms |
| Rise Time, Full Load |
≤200ms |
| Fall Time, No Load |
≤15s |
| Fall Time, Full Load |
≤50ms |
| Dynamic Response |
≤20ms |
| Efficiency |
≥85% |
| Display |
Four-Digit Voltage, Current, and Power Display |
| Protection |
OCP, OVP |
| Memory |
M1-M3, 3 Groups |
| Output Control |
Output ON/OFF |
| Adjustment |
Precision Encoder Adjustment |
| Panel Control |
Panel Lock Button |
| Communication Interface |
Standard USB, RS232/RS485 Optional |
| Output Connections |
Front and Rear Output Ports |
| Front Output Limitation |
Below 5A |
| Rear Output |
Full Rated Power Output |
| Product Size |
About 26.5 × 19 × 8.5 cm |
| Net Weight |
About 2.5 kg |
| Package Size |
38 × 24.5 × 12.5 cm |
| Package Weight |
About 3.2 kg |
| Carton Quantity |
6 pcs/carton |
Why Choose KUAIQU R-SPS3020S?
The KUAIQU R-SPS3020S combines 30V, 20A, and 600W output capability with practical adjustment, monitoring, protection, and control functions for power electronics testing. Its adjustable 0–30V output and 0–20A current range allow users to configure different DC operating conditions, while the four-digit display provides voltage, current, and power readings during operation.
For Power Electronics Testing, the R-SPS3020S provides a combination of precision encoder adjustment, OVP and OCP protection, output ON/OFF control, M1–M3 memory, panel lock, and front/rear output connections. These functions address common bench-testing needs such as setting different supply conditions, monitoring test parameters, protecting against abnormal output conditions, repeating frequently used settings, and organizing connections for different test setups.
The R-SPS3020S is therefore suited to power electronics development, power module testing, converter-related test setups, PCB and circuit evaluation, prototype testing, and other compatible DC testing applications within its rated specifications.![]()
