KUAIQU SPS1203C 120V 3A 360W DC

Bench Power Supply for Buck-Boost

Testing

The KUAIQU SPS1203C is a 120V 3A 360W DC bench power supply designed for Buck-Boost circuit testing, DC-DC converter evaluation, power electronics development, circuit debugging, and laboratory applications. With a maximum output of 0–120V, 0–3A, and 360W, the SPS1203C provides adjustable regulated DC power for compatible Buck-Boost converters, power conversion circuits, electronic modules, and electrical loads.

The SPS1203C is particularly suitable for Buck-Boost testing, where engineers and technicians need adjustable DC input power to evaluate circuit operation under different voltage and current conditions, observe electrical parameters, and troubleshoot power conversion circuits. The wide 0–120V output range and up to 3A current capability provide flexibility for different Buck-Boost circuit test requirements.

The SPS1203C is suitable for:

• Buck-Boost circuit testing

• DC-DC converter testing

• Voltage conversion circuit testing

• Power electronics testing

• Converter input testing

• Power conversion module testing

• Electronic circuit debugging

• Prototype power testing

• Voltage and current monitoring

• Laboratory power electronics testing

Its combination of adjustable output, 360W power capability, OCP protection, low-ripple regulated output, real-time electrical parameter display, and encoder adjustment makes it a practical DC bench power supply for Buck-Boost testing and power conversion circuit evaluation.

Key Features

Adjustable 120V 3A Output for Buck-Boost Testing:

The SPS1203C provides 0–120V adjustable output voltage and 0–3A adjustable output current, with a maximum output power of 360W. This provides flexible DC input power for compatible Buck-Boost circuits, DC-DC converter modules, power conversion boards, and electrical loads.

As a DC bench power supply for Buck-Boost testing, the SPS1203C allows engineers to set the required input voltage and current according to the requirements of the device under test. The wide voltage range is useful when evaluating power conversion circuits under different DC input conditions.

The SPS1203C supports:

• 0–120V adjustable output voltage

• 0–3A adjustable output current

• 360W maximum output power

• 10mV voltage setting resolution below 100V

• 0.1V voltage setting resolution at or above 100V

• 1mA current setting resolution

• 10mV voltage readback resolution below 100V

• 0.1V voltage readback resolution at or above 100V

• 1mA current readback resolution

The adjustable output makes the SPS1203C useful for supplying DC input power to Buck-Boost circuits, testing DC-DC converter modules, evaluating power conversion boards, and observing electrical operating conditions during development and troubleshooting.

OCP Protection for Buck-Boost Circuit Testing:

The SPS1203C provides OCP (Over Current Protection) to help protect the power supply and connected circuit when excessive current conditions occur.

During Buck-Boost testing, abnormal loads, incorrect connections, shorted components, or unexpected circuit conditions may result in excessive current. OCP provides additional protection when these conditions occur.

This is particularly useful for:

• Buck-Boost circuit testing

• DC-DC converter testing

• Power conversion circuit testing

• Converter input testing

• Electronic circuit testing

• Prototype power testing

• Power electronics troubleshooting

Low-Ripple Regulated DC Output:

The SPS1203C provides regulated DC output with specified ripple performance for Buck-Boost testing, DC-DC converter evaluation, and power electronics development.

The voltage ripple is specified at:

• ≤300mVp-p

• ≤30mVrms

The current ripple is:

• ≤30mArms

The regulated output and specified ripple performance make the SPS1203C suitable for providing controlled DC input power to compatible Buck-Boost circuits, converter modules, electronic circuits, and electrical loads during testing and troubleshooting.

Real-Time Electrical Parameter Display:

The SPS1203C provides a digital display for monitoring important electrical parameters during operation.

Users can observe:

• Voltage

• Current

• Power

• Ah

• Charging status

• Output status

During Buck-Boost testing, the real-time display allows engineers to observe changes in input voltage, current, and power while the connected converter or power conversion circuit is operating.

Precise Voltage and Current Adjustment:

The encoder knob enables accurate voltage and current adjustment for different Buck-Boost circuit testing requirements.

With 10mV voltage setting resolution below 100V, 0.1V resolution at or above 100V, and 1mA current setting resolution, users can make fine adjustments to the output parameters according to the requirements of the connected converter or electrical load.

Buck-Boost Circuit Testing Protection

OCP — Over Current Protection

The SPS1203C provides an OCP (Over Current Protection) function to help protect the power supply and connected circuit when excessive current conditions occur.

During Buck-Boost testing, abnormal loads, incorrect connections, short circuits, or faulty conversion modules may result in excessive current. OCP helps provide additional protection under these conditions.

This function is useful when testing:

• Buck-Boost converter circuits

• DC-DC converter modules

• Power conversion circuits

• Converter input circuits

• Electronic control circuits

• Prototype power circuits

• Other compatible electrical loads

Reverse Polarity Protection

The SPS1203C provides reverse polarity protection during its battery charging function.

Incorrect battery connection can cause abnormal charging conditions. The battery charging function is designed to provide protection against damage caused by reverse polarity.

This function can be useful when the tested power electronics system includes a rechargeable battery or battery-powered electronic module.

It can support applications such as:

• Rechargeable battery charging

• Battery-powered converter testing

• Battery charging circuit testing

• Power electronics maintenance

• Electronic module testing

Overcharge Protection

The dedicated battery charging function provides overcharge protection.

When the battery reaches full charge, the SPS1203C can automatically turn off the output to help prevent continued charging after the battery reaches its charging limit.

This function is useful when a Buck-Boost power conversion system incorporates rechargeable batteries.

Over-Temperature Protection

The SPS1203C provides over-temperature protection as an additional protection function during operation.

Temperature protection is useful when the DC bench power supply is operated for extended periods or under higher-output conditions during Buck-Boost testing and power electronics development.

This function provides additional protection for:

• Extended Buck-Boost testing

• DC-DC converter testing

• Power conversion testing

• Laboratory testing

• Electronics development workstations

Short-Circuit Alarm

The SPS1203C provides a short-circuit alarm to alert users when a short-circuit condition is detected.

During Buck-Boost circuit testing, incorrect wiring, abnormal loads, or faulty conversion modules may result in short-circuit conditions. The short-circuit alarm provides an indication to help users identify an abnormal output condition.

This is useful for:

• Converter input checks

• Buck-Boost circuit testing

• Circuit connection testing

• Power electronics troubleshooting

• Prototype circuit testing

• Electronic component testing

Output Switch

The independent OUTPUT control allows engineers to set the required voltage and current parameters before applying output power to the connected Buck-Boost circuit or converter module.

This makes it convenient to prepare the required test parameters before energizing the device under test.

The output switch is useful for:

• Buck-Boost testing

• DC-DC converter testing

• Converter input testing

• Power conversion circuit testing

• Electronic circuit troubleshooting

• Prototype power testing

✦ Real-Time Electrical Parameter Display

The SPS1203C provides a digital display for monitoring important electrical parameters during operation.

Users can observe:

• Voltage

• Current

• Power

• Ah

• Charging status

• Output status

During Buck-Boost testing, the real-time display allows engineers to observe changes in input voltage, current, and power while the connected converter is operating.

The display helps users monitor the electrical conditions at the power supply output and observe changes when the device under test is powered.

✦ High-Precision 4-Digit Display

The SPS1203C uses a 4-digit digital display for electrical parameter monitoring.

The display provides information including:

• Output voltage

• Output current

• Power

• Ah charging amount

The clear digital display makes it easier to observe electrical parameters during Buck-Boost testing, DC-DC converter evaluation, and power electronics troubleshooting.

✦ Precise Encoder Adjustment

The SPS1203C uses encoder controls for voltage and current adjustment.

The encoder adjustment system allows engineers to conveniently set the required output parameters during Buck-Boost testing, converter evaluation, power electronics development, and circuit debugging.

With:

• 10mV voltage setting resolution below 100V

• 0.1V voltage setting resolution at or above 100V

• 1mA current setting resolution

users can make fine adjustments according to the requirements of the connected Buck-Boost circuit, converter module, or electrical load.

✦ USB-A & USB-C Fast Charging Output

In addition to the adjustable regulated DC output, the SPS1203C provides USB-A and USB-C charging ports for compatible USB devices.

The USB-A output supports:

• PE1.1/2.0

• Apple

• BC1.2

• AFC

• FCP

• QC2.0/QC3.0

The USB-C output supports:

• PE1.1/2.0

• Apple

• BC1.2

• AFC

• FCP

• QC2.0/QC3.0

• PD3.0

• PPS

The USB charging ports provide additional convenience at power electronics testing and engineering workstations when charging compatible portable electronic devices and accessories.

✦ Compact 360W Power Supply

The SPS1203C combines a 0–120V / 0–3A adjustable output with a maximum power rating of 360W, providing sufficient capacity for compatible Buck-Boost circuits, DC-DC converter modules, power conversion boards, and other electrical loads within its rated output range.

The SPS1203C is suitable for power electronics laboratories, engineering workstations, R&D environments, electronics development benches, converter testing laboratories, and educational testing environments.

The SPS1203C combines:

• Adjustable 0–120V output

• Adjustable 0–3A output

• 360W maximum power

• OCP protection

• Low-ripple regulated DC output

• Real-time voltage, current and power display

• Real-time Ah display

• High-precision 4-digit display

• Reverse polarity protection

• Overcharge protection

• Over-temperature protection

• Short-circuit alarm

• Automatic output shutdown after full charge

• Battery charging function

• USB-A fast charging

• USB-C fast charging

• Encoder adjustment

• Output ON/OFF control

It is particularly useful for testing:

• Buck-Boost converter circuits

• DC-DC converter modules

• Power conversion circuits

• Converter input circuits

• Power electronics modules

• Electronic control circuits

• Prototype power circuits

• Electronic components

• Battery-powered converter systems

• Electrical loads

✦ Wide Range of Applications

The SPS1203C is designed for applications requiring adjustable and regulated DC power for Buck-Boost testing, DC-DC converter evaluation, power conversion circuit testing, and troubleshooting, especially:

Buck-Boost Circuit Testing

• Buck-Boost converter functional testing

• Buck-Boost input power testing

• Converter operating condition verification

• DC input voltage testing

• Converter current observation

• Power conversion circuit testing

• Buck-Boost circuit debugging

• Prototype converter testing

DC-DC Converter Testing

• DC-DC converter module testing

• Converter input testing

• Voltage conversion testing

• Converter power consumption observation

• Input current monitoring

• Converter operating condition evaluation

• Power conversion troubleshooting

• Converter prototype testing

Power Electronics Development & Troubleshooting

• Power conversion circuit development

• DC-DC converter debugging

• Power circuit troubleshooting

• Electronic module evaluation

• Prototype power testing

• Power electronics experiments

• Circuit connection testing

• Electronic circuit debugging

Battery-Powered Power Electronics Testing

• Battery-powered converter testing

• Rechargeable battery charging

• Battery charging condition monitoring

• Ah charging amount monitoring

• Battery-powered electronic system testing

• Charging circuit testing

• Battery maintenance

• Power electronics testing

The SPS1203C provides adjustable regulated DC power, 360W power capability, OCP protection, low-ripple output, real-time electrical parameter monitoring, and precise output adjustment to support Buck-Boost circuit testing, DC-DC converter testing, power conversion circuit evaluation, converter input testing, power electronics development, electronic circuit troubleshooting, prototype testing, and laboratory applications.

✦ Quality Assurance & Customer Support

Each package includes:

1 × DC power supply

1 × output power cable

1 × input power cable

1 × user manual

1 × warranty card

All DC power supplies and accessories undergo inspection before shipment to ensure reliable quality. The SPS1203C has passed CE & FCC certification.

We provide professional after-sales service and technical support. If you have any questions about the SPS1203C 120V 3A 360W DC bench power supply for Buck-Boost testing, please feel free to contact us.

Technical Specifications

Why Choose KUAIQU SPS1203C?

For Buck-Boost circuit testing, engineers need a DC bench power supply that provides flexible voltage and current adjustment, sufficient output capacity, clear electrical parameter monitoring, and protection functions for different power conversion test conditions.

The KUAIQU SPS1203C combines:

✓ 0–120V / 0–3A adjustable output

✓ 360W power capability

✓ Adjustable regulated DC output

✓ OCP protection

✓ Low-ripple DC output

✓ 10mV voltage setting/readback resolution below 100V

✓ 0.1V voltage setting/readback resolution at or above 100V

✓ 1mA current setting/readback resolution

✓ Real-time voltage, current and power display

✓ Real-time Ah accumulated charge display

✓ High-precision 4-digit display

✓ Reverse polarity protection

✓ Overcharge protection

✓ Over-temperature protection

✓ Short-circuit alarm

✓ Automatic output shutdown after full charge

✓ Dedicated battery charging function

✓ USB-A + USB-C fast charging

✓ Precision encoder adjustment

✓ Output ON/OFF control

Providing a practical testing solution for Buck-Boost circuit testing, DC-DC converter testing, power conversion circuit evaluation, converter input testing, power electronics development, electronic circuit troubleshooting, prototype converter testing, battery-powered converter testing, and laboratory applications.