KUAIQU SPS1203C 120V 3A 360W

Adjustable DC Power Source with OCP for

DC Chopper Circuit Testing

The KUAIQU SPS1203C is a 120V 3A 360W adjustable DC power source designed for DC chopper circuit testing, DC-DC converter evaluation, power electronics development, circuit debugging, and laboratory use. With a 0–120V adjustable output, up to 3A current, and 360W maximum power, it provides regulated DC power for compatible chopper circuits, switching circuits, converter modules, and electronic loads.

The SPS1203C is particularly useful for DC chopper circuit testing, where engineers need a stable and adjustable DC input to evaluate circuit performance under different voltage and current conditions. The wide 0–120V output range provides flexibility for testing circuits that require higher DC input voltages than conventional 30V or 60V bench supplies.

The SPS1203C is suitable for:

• DC chopper circuit testing

• DC-DC converter testing

• Chopper circuit input testing

• Switching circuit testing

• Power electronics testing

• Power conversion module testing

• Electronic circuit debugging

• Prototype circuit testing

• Voltage and current monitoring

• Laboratory power electronics testing

Its combination of adjustable output, 360W power capability, OCP protection, regulated DC output, real-time electrical parameter display, and encoder adjustment makes it a practical adjustable DC power source for DC chopper circuit testing.

Key Features

Adjustable 120V 3A Output for DC Chopper Testing:

The SPS1203C provides 0–120V adjustable output voltage and 0–3A adjustable output current, with a maximum output power of 360W. This gives engineers flexible DC input power for compatible chopper circuits, DC-DC converters, switching circuits, and electronic loads.

As an adjustable DC power source for DC chopper circuit testing, the SPS1203C allows users to set the required input voltage and current according to the device under test. The wide voltage range is especially useful when evaluating chopper circuits at different DC input levels.

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 it easy to supply controlled DC power to chopper circuits and observe how the circuit responds to different input conditions.

OCP Protection for DC Chopper Circuit Testing:

The SPS1203C features OCP (Over Current Protection) to help protect the power source and connected circuit when excessive current occurs.

During DC chopper testing, incorrect wiring, abnormal loads, shorted components, or circuit faults can cause excessive current. OCP provides an additional layer of protection during these test conditions.

This is useful for:

• DC chopper circuit testing

• DC-DC converter testing

• Switching circuit testing

• Converter input testing

• Power electronics testing

• Prototype circuit testing

• Circuit troubleshooting

Low-Ripple Regulated DC Output:

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

The voltage ripple is specified at:

• ≤300mVp-p

• ≤30mVrms

The current ripple is:

• ≤30mArms

The regulated output provides a controlled DC source for compatible chopper circuits, converter modules, switching circuits, and electronic loads during testing.

Real-Time Electrical Parameter Display:

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

Users can observe:

• Voltage

• Current

• Power

• Ah

• Charging status

• Output status

During DC chopper circuit testing, the display helps engineers monitor the power source output and observe changes in voltage, current, and power as the circuit operates.

Precise Voltage and Current Adjustment:

The encoder controls allow convenient voltage and current adjustment during DC chopper testing.

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 DC input conditions required by the circuit under test.

DC Chopper Circuit Testing Protection

OCP — Over Current Protection

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

During DC chopper circuit testing, abnormal loads, incorrect connections, short circuits, or faulty modules can cause excessive current. OCP helps provide additional protection under these conditions.

This function is useful when testing:

• DC chopper circuits

• DC-DC converter modules

• Switching power circuits

• Power conversion circuits

• Converter input circuits

• Electronic control circuits

• Prototype power circuits

• Compatible electrical loads

Reverse Polarity Protection

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

Incorrect battery connections can cause abnormal charging conditions. The battery charging function is designed to help protect against damage caused by reverse polarity.

This can be useful when a DC chopper or power conversion system includes a rechargeable battery.

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.

This function can be useful when testing power conversion systems that include rechargeable batteries.

Over-Temperature Protection

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

This can be useful when the adjustable DC power source is operated for extended periods or at higher output levels during DC chopper and power electronics testing.

It provides additional protection during:

• Extended chopper circuit testing

• DC-DC converter testing

• Power conversion testing

• Laboratory testing

• Electronics development

Short-Circuit Alarm

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

During DC chopper testing, incorrect wiring, abnormal loads, or faulty modules may result in a short circuit. The alarm helps users identify an abnormal output condition.

This is useful for:

• Chopper circuit checks

• Converter input testing

• Circuit connection testing

• Power electronics troubleshooting

• Prototype circuit testing

• Electronic component testing

Output Switch

The independent OUTPUT control allows users to set the required voltage and current before applying power to the connected chopper circuit or converter.

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

The output switch is useful for:

• DC chopper testing

• DC-DC converter testing

• Converter input testing

• Power conversion circuit testing

• Circuit troubleshooting

• Prototype testing

✦ Real-Time Electrical Parameter Display

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

Users can observe:

• Voltage

• Current

• Power

• Ah

• Charging status

• Output status

During DC chopper testing, the real-time display helps engineers monitor the power source output and observe changes while the connected circuit is operating.

✦ 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 display makes it easier to monitor electrical parameters during DC chopper testing, 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 DC chopper testing, converter evaluation, 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 chopper circuit, converter module, or electronic load.

✦ USB-A & USB-C Fast Charging Output

In addition to the adjustable 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 electronics testing and engineering workstations.

✦ Compact 360W Power Source

The SPS1203C combines a 0–120V / 0–3A adjustable output with a maximum power rating of 360W, providing suitable capacity for compatible DC chopper circuits, DC-DC converter modules, switching circuits, 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, and converter testing laboratories.

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:

• DC chopper circuits

• DC-DC converter modules

• Switching power circuits

• Power conversion circuits

• Converter input circuits

• Power electronics modules

• Electronic control circuits

• Prototype power circuits

• Battery-powered converter systems

• Electrical loads

✦ Wide Range of Applications

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

DC Chopper Circuit Testing

• DC chopper circuit functional testing

• Chopper circuit input power testing

• DC input voltage testing

• Chopper operating condition verification

• Input current observation

• Power conversion circuit testing

• Chopper circuit debugging

• Prototype chopper 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

• Switching power circuit 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 DC Chopper Circuit Testing, DC-DC converter testing, power conversion circuit evaluation, converter input testing, power electronics development, electronic circuit troubleshooting, prototype testing, battery-powered converter 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 adjustable DC power source for DC chopper circuit testing, please feel free to contact us.

Technical Specifications

Why Choose KUAIQU SPS1203C?

For DC Chopper Circuit Testing, engineers need an adjustable DC power source with a wide output range, sufficient power 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 DC Chopper Circuit Testing, DC-DC converter testing, power conversion circuit evaluation, converter input testing, switching power circuit testing, power electronics development, electronic circuit troubleshooting, prototype testing, and laboratory applications.