KUAIQU SPS-C305S 30V 5A 150W Regulated DC Bench Supply with OCP for Embedded System Testing
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KUAIQU SPS-C305S 30V 5A 150W Regulated DC Bench Supply with OCP for Embedded System Testing
KUAIQU SPS-C305S 30V 5A 150W Regulated DC Bench Supply with OCP for Embedded System Testing
KUAIQU SPS-C305S 30V 5A 150W Regulated DC Bench Supply with OCP for Embedded System Testing
KUAIQU SPS-C305S 30V 5A 150W Regulated DC Bench Supply with OCP for Embedded System Testing
KUAIQU SPS-C305S 30V 5A 150W Regulated DC Bench Supply with OCP for Embedded System Testing
KUAIQU SPS-C305S 30V 5A 150W Regulated DC Bench Supply with OCP for Embedded System Testing
KUAIQU SPS-C305S 30V 5A 150W Regulated DC Bench Supply with OCP for Embedded System Testing
KUAIQU SPS-C305S 30V 5A 150W Regulated DC Bench Supply with OCP for Embedded System Testing

KUAIQU SPS-C305S 30V 5A 150W Regulated DC Bench Supply with OCP for Embedded System Testing

$69.99
$69.99
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Input Voltage: AC220V(±10%)
Model: SPS-C305S
Total: $69.99
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KUAIQU SPS-C305S 30V 5A 150W Regulated DC Bench Supply with OCP for Embedded System Testing

KUAIQU SPS-C305S 30V 5A 150W Regulated DC Bench Supply with OCP for Embedded System Testing

$69.99
KUAIQU SPS-C305S 30V 5A 150W Regulated DC Bench Supply with OCP for Embedded System Testing
KUAIQU SPS-C305S 30V 5A 150W Regulated DC Bench Supply with OCP for Embedded System Testing
KUAIQU SPS-C305S 30V 5A 150W Regulated DC Bench Supply with OCP for Embedded System Testing
KUAIQU SPS-C305S 30V 5A 150W Regulated DC Bench Supply with OCP for Embedded System Testing
KUAIQU SPS-C305S 30V 5A 150W Regulated DC Bench Supply with OCP for Embedded System Testing
KUAIQU SPS-C305S 30V 5A 150W Regulated DC Bench Supply with OCP for Embedded System Testing
KUAIQU SPS-C305S 30V 5A 150W Regulated DC Bench Supply with OCP for Embedded System Testing

KUAIQU SPS-C305S 30V 5A 150W Regulated DC Bench Supply with OCP for Embedded System Testing

$69.99
Input Voltage: AC220V(±10%)
Model: SPS-C305S
Product Details

Download English Manual (PDF)

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

KUAIQU SPS-C305S 30V 5A 150W

Regulated DC Bench Supply with OCP for

Embedded System Testing

The KUAIQU SPS-C305S is a 30V 5A 150W regulated DC bench supply designed for embedded system testing and development. With adjustable voltage and current, fine setting resolution, real-time voltage, current and power display, and OCP protection, it provides controlled DC power for evaluating embedded boards, modules, and electronic systems under different operating conditions. Its independent output button and precision adjustment controls also make it convenient for repeated bench testing and troubleshooting.

Key Features

Regulated DC Output for Embedded Systems

The SPS-C305S provides 0–30V adjustable voltage and 0–5A adjustable current with 150W maximum output power. This allows users to establish different power conditions when testing embedded boards, development modules, and related electronic circuits without changing to a different power source for each test condition.

Fine Voltage and Current Adjustment

The dedicated V-COARSE, V-FINE, A-COARSE, and A-FINE controls provide both quick and fine parameter adjustment. With 10mV voltage setting resolution and 1mA current setting resolution, users can make controlled changes to the power supplied to an embedded system while evaluating its operating response.

4-Digit Display for Power Monitoring

The 4-digit display provides real-time readings of voltage, current, and power. During embedded system testing, users can monitor the electrical conditions of the connected device while adjusting the supply, helping them observe changes in power consumption and operating conditions.

OCP Protection for Test Conditions

Over-Current Protection (OCP) helps protect the power supply and connected test setup when excessive current conditions occur. This is particularly useful when evaluating embedded boards and modules under different operating conditions where current demand may change during testing.

Independent Output Control

The dedicated Output Button allows users to control the DC output after setting the required voltage and current. This provides a convenient way to connect or adjust an embedded system while keeping the configured test parameters available.

Multiple Protection Functions

In addition to OCP, the SPS-C305S provides Over-Voltage Protection (OVP), Over-Load Protection, Short Circuit Protection, Over-Temperature Protection, and Grounding Protection. These functions provide additional protection during embedded system development, board testing, and troubleshooting.

USB and Type-C Charging Output

The SPS-C305S includes USB and Type-C charging outputs. The USB/Type-C output supports PDO profiles of 5V/3A, 9V/2A, and 12V/1.5A, as well as PPS profiles of 3.3V–5.9V/3A and 3.3V–11V/1.6A. These outputs provide an additional charging option for compatible devices used alongside embedded system development and testing.

Applications

Embedded Board Testing

The SPS-C305S can provide adjustable DC power for embedded development boards and electronic modules. Users can adjust voltage and current according to the requirements of the test setup while monitoring actual voltage, current, and power readings.

Microcontroller and Development Module Testing

During development and evaluation of microcontroller-based systems and electronic modules, the regulated DC bench supply can provide controlled power conditions for functional checks and operating-condition evaluation.

Embedded System Power Evaluation

The adjustable output allows engineers to evaluate embedded systems under different supply conditions. The 4-digit display provides direct visibility of voltage, current, and power during bench testing.

Embedded Hardware Troubleshooting

The SPS-C305S is suitable for troubleshooting embedded hardware by providing adjustable DC power and fine parameter control. OCP, OVP, Short Circuit Protection, and other protection functions provide additional safeguards when investigating abnormal operating conditions.

Quality Check and Terms of Service:

  • Package Includes: Standard SPS-C305S power supply and included accessories according to the product package.

  • CE & FCC Certification: The product complies with applicable CE and FCC certification requirements.

  • Inspection Before Shipment: Each unit is inspected before shipment to help ensure proper product condition.

  • Customer Support: Customer support is available within 24 hours for product-related questions.

Technical Specifications

Item Sub-item Specification
Rated Value (0℃~40℃) Voltage 0–30V
Current 0–5A
Power 150W
USB/Type-C Output PDO 5V/3A, 9V/2A, 12V/1.5A
PPS 3.3V–5.9V/3A, 3.3V–11V/1.6A
Load Regulation Voltage ≤0.3% + 10mV
Current ≤0.1% + 2.5mA
Line Regulation Voltage ≤0.01% + 2.5mV
Current ≤0.1% + 2.5mA
Setting Resolution Voltage 10mV
Current 1mA
Readback Resolution Voltage 10mV
Current 1mA
Setting Accuracy Voltage ≤0.05% + 10mV
Current ≤0.01% + 10mA
Readback Accuracy Voltage ≤0.05% + 10mV
Current ≤0.01% + 10mA
Ripple (20Hz~20MHz) Voltage ≤60mVp-p / ≤10mVrms
Current ≤10mArms
Rise Time (No Load) Time ≤200ms
Rise Time (Full Load) Time ≤300ms
Fall Time (No Load) Time ≤15s
Fall Time (Full Load) Time ≤300ms
Dynamic Response Time ≤200ms
Efficiency — ≥85%
Input Voltage/Current — AC 220V (AC 110V optional)

Why Choose KUAIQU SPS-C305S?

For Embedded System Testing, the KUAIQU SPS-C305S combines a regulated 0–30V, 0–5A DC output with 150W maximum power, fine voltage and current adjustment, and clear 4-digit monitoring. Its V-FINE and A-FINE controls allow users to make precise changes to test conditions, while real-time voltage, current, and power readings provide visibility during embedded board and module evaluation. OCP, OVP, Over-Load Protection, Short Circuit Protection, Over-Temperature Protection, and Grounding Protection provide multiple layers of protection for bench testing. With its adjustable output and practical control layout, the SPS-C305S is suitable for embedded board testing, development module evaluation, power-condition testing, and embedded hardware troubleshooting.

Warranty

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.

Price Guarantee

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.)

How Does the Price Guarantee Apply?

  • Eligibility: The price guarantee applies only to purchases made on kuaiquinstrument.com. Products purchased from other retailers or third-party sellers are not eligible.
  • Timeframe: The price drop must occur within 30 days of your original purchase date.
  • Product Match: The price guarantee applies to the same product (identical model, specifications, and condition).

How to Apply for a Price Difference Refund

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:

  • Documentation: Prepare your order number and proof of the price drop (such as a screenshot and link to the product page showing the reduced price).
  • Contact Us: Reach out to our customer support team at kuaiquinstrument@163.com. Include your order number, proof of the price drop, and a brief explanation of your request.
  • Verification: Our team will verify the price drop and your purchase details.
  • Refund Process: Once verified, we will process the refund for the price difference to your original method of payment. It typically takes 1-3 business days for you to receive the refund.

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.

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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.

Contact Support