Adjustable DC Power Supply for MOSFET Bench Testing, NICE-POWER R-SPS2003, 0-200V 0-3A 600W

$229.99
$229.99
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InputVoltage: AC220V(±10%)
Model: R-SPS2003
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Adjustable DC Power Supply for MOSFET Bench Testing, NICE-POWER R-SPS2003, 0-200V 0-3A 600W

Adjustable DC Power Supply for MOSFET Bench Testing, NICE-POWER R-SPS2003, 0-200V 0-3A 600W

$229.99

Adjustable DC Power Supply for MOSFET Bench Testing, NICE-POWER R-SPS2003, 0-200V 0-3A 600W

$229.99
InputVoltage: AC220V(±10%)
Model: R-SPS2003

Download English Manual (PDF)

Click the link above to get the full user guide for this product.

Adjustable DC Power Supply for MOSFET Bench

Testing, NICE-POWER R-SPS2003, 0-200V 0-3A

600W

The NICE-POWER R-SPS2003 High Power Basic Series is a high voltage adjustable DC power supply designed for electronic engineering applications that require controlled DC input conditions. With a 0–200V adjustable voltage range, 0–3A output current, and 600W rated power, it provides a practical DC source for MOSFET bench testing, power circuit development, and prototype validation. 

During MOSFET testing, engineers often need a reliable DC input source to apply different voltage conditions to test circuits. The R-SPS2003 allows users to manually adjust output voltage and current settings while monitoring voltage, current, and power values through the digital display.

The R-SPS series includes the R-SPS2003 standard version and the R-SPS2003-R programmable version. The USB, RS232, and RS485 communication interfaces are optional configurations and should be confirmed according to the selected model. These interfaces are not standard features for every unit. 

The R-SPS2003 is an adjustable DC power supply for providing controlled power conditions during MOSFET-related circuit testing. It is not a dedicated MOSFET analyzer and does not perform automatic semiconductor parameter measurement, curve tracing, gate charge testing, or switching waveform analysis.

Key Features

0–200V Adjustable DC Output for MOSFET Bench Testing

The NICE-POWER R-SPS2003 provides a wide adjustable output voltage range from 0 to 200V, making it suitable for MOSFET test circuits and power electronics applications that require higher DC voltage input conditions.

Engineers can manually set the required output voltage according to the MOSFET circuit design, application requirements, and rated operating conditions.

600W Rated Power for Power Electronics Applications

With a rated output power of 600W, maximum output voltage of 200V, and maximum output current of 3A, the R-SPS2003 supports various laboratory and engineering bench applications.

It can provide DC power for compatible MOSFET circuits, switching circuit prototypes, and power electronic development platforms within its rated output range.

Four-Digit Voltage Current and Power Display

The built-in four-digit display shows output voltage, current, and power values during operation.

This allows engineers to observe the DC operating conditions supplied to MOSFET test circuits and monitor changes during different test setups.

For detailed MOSFET electrical characteristic measurements, additional professional testing instruments are required.

Output ON/OFF Control for Convenient Testing

The Output ON/OFF function allows users to control the DC output during circuit setup, debugging, and testing.

Engineers can prepare the MOSFET test circuit, adjust the required output settings, and then enable the output when the test environment is ready.

Encoder Knob Adjustment for Flexible Test Conditions

The encoder knob provides convenient manual adjustment of voltage and current settings.

This allows users to prepare different DC input conditions when evaluating MOSFET circuits, power modules, and related electronic designs.

Front Panel and Rear Panel Dual Output Ports

The R-SPS2003 features both front-panel and rear-panel output terminals for different bench configurations.

The front-panel output is suitable for connections below 5A, while the rear-panel output can be used for full-rated-power applications.

Users can select the appropriate output terminal according to the test setup requirements.

Standard and Programmable Model Options

The R-SPS2003 is the standard model, while the R-SPS2003-R is the programmable model.

The programmable version supports optional USB, RS232, and RS485 communication interfaces. Please confirm the required communication configuration before purchase.

Applications

MOSFET Switching Circuit Testing

The R-SPS2003 can provide adjustable DC input power for MOSFET switching circuits during development and laboratory testing.

Engineers can apply different DC voltage conditions and observe the power supply output values while evaluating circuit operation.

MOSFET Power Circuit Prototype Development

During power electronics research and development, MOSFET-based circuits often require adjustable DC sources for prototype power-up and functional verification.

The R-SPS2003 provides a controlled DC input source for compatible prototype circuits within its voltage, current, and power limits.

High Voltage MOSFET Circuit Debugging

With up to 200V adjustable output capability, the R-SPS2003 is suitable for high voltage electronic circuit development where controlled DC input is required.

It helps engineers verify circuit connections, check basic operation, and troubleshoot prototype designs.

Power Electronics Laboratory Evaluation

The R-SPS2003 can be used as an adjustable DC source in laboratory environments for power electronics experiments and engineering validation.

For measurements such as switching waveform analysis, efficiency testing, or semiconductor parameter characterization, external instruments should be used together with the power supply.

Quality Check and Terms of Service:

  • Package includes: DC Power Supply × 1, Output Power Cord × 1, Input Power Cord × 1, User Manual × 1, Warranty Card × 1.
  • Has passed CE & FCC Certification.
  • All DC power supplies and accessories are inspected before shipment to ensure good quality.
  • Customer support: Contact us with any questions, and we'll respond within 24 hours.

Technical Specifications

Specification Details
Product Model R-SPS2003 / R-SPS2003-R
Product Type Adjustable DC Bench Power Supply
Application MOSFET Bench Testing
Rated Voltage 0–200V
Rated Current 0–3A
Rated Power 600W
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
Setting Resolution Voltage 10mV
Setting Resolution Current 10mA
Readback Resolution Voltage 10mV
Readback Resolution Current 10mA
Setting Accuracy Voltage ≤0.05%+10mV
Setting Accuracy Current ≤0.01%+10mA
Readback Accuracy Voltage ≤0.05%+10mV
Readback Accuracy Current ≤0.01%+10mA
Voltage Ripple ≤200mVp-p / ≤20mVrms
Current Ripple ≤20mArms
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%
Operating Temperature 0℃–40℃
Product Size Approx. 26.5 × 18.5 × 8cm
Net Weight Approx. 2.8kg
Package Size Approx. 38 × 24.5 × 12.5cm
Package Weight Approx. 3.3/3.5kg

Why Choose NICE-POWER R-SPS2003?

The NICE-POWER R-SPS2003 provides a high voltage adjustable DC power solution for MOSFET bench testing, power electronics development, and electronic circuit validation.

With 0–200V output capability, 600W rated power, and clear voltage, current, and power displays, it helps engineers create controlled DC input conditions for prototype testing and circuit debugging.

The R-SPS2003 standard version is suitable for general adjustable DC power applications, while the R-SPS2003-R programmable version provides an option for users who require computer-controlled operation.

USB, RS232, and RS485 communication interfaces are optional configurations and should be confirmed before ordering. The power supply should be used together with appropriate external instruments when performing detailed MOSFET characterization or semiconductor testing.

Warranty

30-Day return and refund guarantee (Refer to our Refund Policy), 2-year warranty (only available for orders purchased directly from kuaiquinstrument.com), lifetime technique support by KUAIQU.

Please feel free to reach us with any concerns:

Email: kuaiquinstrument@163.com

We strive to reply to you within 24 hours.

Shenzhen Kuaiqu Electronic Co., Ltd. was founded in 2014 and is located in Shenzhen City, Guangdong Province. It is a scientific and technological enterprise integrating,production and sales. Specializing in the production of DC stabilized power supply, variable frequency power supply, switching power supply, program-controlled power supply and other 100 kinds of measuring teaching instruments and industrial special equipment.

We are committed to delivering premium products and exceptional customer service, striving to be your most reliable and intelligent assistant.

At KUAIQU, we are committed to providing our customers with the best value for their purchases. To ensure you always get the best price, we offer a 30-day price guarantee on all products purchased directly from kuaiquinstrument.com. This policy aims to give you confidence and peace of mind when shopping with us.

What is the 30-Day Price Guarantee?

Our 30-day price guarantee means that if you purchase a product from kuaiquinstrument.com and the price of that product drops within 30 days of your purchase date, you are eligible for a refund of the price difference of the products. (Prices are based on USD. No refunds will be given for price changes in other currencies due to exchange rate fluctuations.)

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  • Product Match: The price guarantee applies to the same product (identical model, specifications, and condition).

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If you notice that the price of a product you purchased from kuaiquinstrument.com has dropped within 30 days, follow these steps to apply for a refund of the price difference:

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At KUAIQU, we strive to provide our customers with high-quality products and exceptional customer service. Our 30-day price guarantee is just one of the ways we ensure you get the best value for your investment. Shop confidently with KUAIQU, knowing that you are always getting the best deal available.

Thank you for choosing KUAIQU. If you have any questions or need further assistance, please do not hesitate to contact our customer support team at kuaiquinstrument@163.com.

FAQs

Still confused about our DC regulated power supplies after checking the FAQs? Please contact our customer service, we are ready to solve all your problems.

Use overlay text to give your customers insight into your brand. Select image and text that relates to your style and story.

Our customer service can walk you through all settings. You can also watch full operation tutorials on our YouTube channel, including OVP, OCP, memory storage function and other operation guides. Our official blog also has lots of technical articles for reference.

Partial KUAIQU power supplies support program control with USB, RS232, RS485 interfaces, based on Modbus protocol. Remote control can be realized via our self-developed PC software. If you need this function and confirm interface configuration of a model, email us: kuaiquinstrument@163.com..

The banana plug adopts cross-slot design. Pry the metal slot slightly open with a screwdriver to make the plug clamp terminals tighter and safer..

All KUAIQU DC power supplies support basic battery charging. For dedicated long-term charging, our patented battery-charging model with independent BATTERY key and full charging protection is highly recommended.

A certain amount of ripple is normal for all switching DC power supplies. Ripple is a small residual AC component superimposed on the DC output and is an inherent characteristic of switching power supply technology. The typical ripple voltage of our power supplies ranges from approximately 100 mV to 300 mV, which is suitable for most general-purpose testing, maintenance, and electronic applications.

A: Minor fluctuations in the last displayed digit are normal and are typically caused by temperature drift within the electronic components. As ambient and internal temperatures change, small variations in the readings may occur. This falls within normal industry tolerances and does not affect the power supply's suitability for everyday electronics work, home repairs, DIY projects, or general testing. For applications requiring extremely high precision and ultra-stable output, a linear DC regulated power supply may be more appropriate.

This is normal and does not indicate a malfunction. The internal capacitors continue to hold a small amount of stored energy after the power is switched off. As the capacitors discharge, the display will gradually turn off, typically within 5–8 seconds.

In CV mode, the power supply maintains a fixed output voltage while the current varies according to the load. In CC mode, the power supply limits the output current to a preset value, automatically reducing voltage if necessary. CC mode is especially useful for battery charging, LED testing, and protecting electronic components.

This is normal behavior. The power supply contains internal filter capacitors that store electrical energy. When the output voltage is reduced, these capacitors require a few seconds to discharge, causing the displayed voltage to decrease more gradually than when increasing the voltage. Q: Why does t

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FAQs

If you have any other questions or technical doubts about our DC power supplies, please feel free to contact us anytime. Our professional support team will reply to you as soon as possible.

Output ripple refers to small residual AC fluctuations present in the DC output. Lower ripple levels provide cleaner power, which is important when testing sensitive electronics, RF circuits, audio equipment, and precision instruments.

Yes, all DC regulated power supplies manufactured by KUAIQU support battery charging. However, if you mainly intend to charge batteries, I would highly recommend our patented DC power supply specially designed for battery charging. It comes with an exclusive dedicated BATTERY function key, and built-in specialized charging protection functions to safeguard your batteries during the whole charging process..

This is normal behavior. The power supply contains internal filter capacitors that store electrical energy. When the output voltage is reduced, these capacitors require a few seconds to discharge, causing the displayed voltage to decrease more gradually than when increasing the voltage..

This is normal and does not indicate a malfunction. The internal capacitors continue to hold a small amount of stored energy after the power is switched off. As the capacitors discharge, the display will gradually turn off, typically within 5–8 seconds..

This is a common operation issue for adjustable DC power supplies. Please follow the steps below to solve the voltage adjustment failure: Turn the current adjustment knob clockwise moderately to set the unit to constant voltage (C.V) mode; After confirming the power supply enters CV mode, turn the voltage adjustment knob clockwise, then you can freely adjust the output voltage value..

It is recommended to pre-adjust the voltage to around 5V before operation. This step prevents spark generation when connecting short-circuited loads, which effectively avoids safety accidents and other hidden electrical hazards..

A: Our banana plug adopts cross-slot design. If the plug becomes loose, use a screwdriver to slightly pry open the metal slot, which can make the plug clamp tighter and connect more safely..

Some models of our KUAIQU DC regulated power supplies support programmable control. They are equipped with USB, RS232 or RS485 communication interfaces and adopt the Modbus protocol. You can realize remote control easily by using our self-developed PC software. If you need programmable control but are unsure whether a specific model comes with your required communication interface, please feel free to contact us via email: kuaiquinstrument@163.com.

If you have any confusion about using OVP, OCP and other built-in functions, our professional customer support staff will provide targeted guidance for you. We also upload complete step-by-step tutorial videos on our official YouTube channel. Apart from OVP and OCP over-protection setup, the videos demonstrate memory storage function and all common operation skills. You can visit our channel via https://www.youtube.com/ In addition, our official blog contains a large number of popular science and technical articles about DC power supplies, you can search and browse related content to solve your problems.

In CV mode, the power supply maintains a fixed output voltage while the current varies according to the load. In CC mode, the power supply limits the output current to a preset value, automatically reducing voltage if necessary. CC mode is especially useful for battery charging, LED testing, and protecting electronic components.