GW-GSP550W-5 350W AC-DC Power Supply

CORE ADVANTAGES

350W 5V High-Current Enclosed AC-DC Power Supply for Semiconductor Testing, Embedded Computing, LED Processing, and Automated Equipment

The GW-GSP550W-5 provides a regulated 5V / 70A output with up to 350W of output power , supporting semiconductor test fixtures, embedded computing platforms, LED processing equipment, automated inspection systems, and other applications requiring a stable high-current 5V power source.

350W High-Current 5V Power Capacity

Compact 230 × 127 × 40.5 mm Enclosed Structure

Built in a durable 230 × 127 × 40.5 mm metal enclosure , this model is suitable for installation inside test racks, industrial cabinets, processing equipment, embedded systems, and high-current electronic platforms.

Universal 90–264Vac Input Compatibility

The power supply supports a wide 90–264Vac input range , allowing operation across common international AC power grids without manual input-voltage selection.

Stable 5V / 70A Output Performance

The unit delivers a regulated 5V DC output at up to 70A , making it suitable for processor boards, FPGA platforms, LED control electronics, semiconductor validation equipment, embedded computing modules, and other demanding low-voltage loads.

Active PFC and Half-Bridge LLC Conversion

Built-in active PFC with PF greater than 0.97 improves input power utilization, while the half-bridge LLC topology supports stable voltage regulation, efficient conversion, and reliable continuous operation.

Forced-Air Cooling with Remote Control Functions

An integrated DC fan provides forced-air cooling for sustained high-current operation. Remote ON/OFF, remote sensing, adjustable output voltage, low-ripple output, and short-circuit, overcurrent, overvoltage, and overtemperature protection support dependable operation from -30°C to +70°C .

MODEL SELECTION

Compare Greatwall industrial power options.

Review nearby Greatwall models and select the output voltage, power level, and integration profile that best match the target system.

Model	Output Voltage	Rated Current	Rated Power	Best-Fit Application
GW-GSP550W-5	5Vdc	70A	350W	Semiconductor testing, embedded computing, LED processing, processor boards, and high-current 5V systems
GW-GSP550W-12	12Vdc	45.84A	550W	Industrial computers, surveillance equipment, robotic controllers, and high-power 12V platforms
GW-GSP550W-15	15Vdc	36.66A	550W	Laboratory instruments, imaging systems, automated test equipment, and dedicated 15V electronics
GW-GSP550W-24	24Vdc	22.92A	550W	PLC cabinets, industrial automation, process control, actuators, and machinery interfaces
GW-GSP550W-27	27Vdc	20.37A	550W	RF equipment, broadcast systems, microwave communication, and specialized 27V platforms
GW-GSP550W-48	48Vdc	11.46A	550W	Telecom equipment, industrial networking, edge communication, and distributed 48V systems

DEPLOYMENT SCENARIOS

Where GW-GSP550W-5 fits best.

The GW-GSP550W-5 is designed for systems requiring substantial current from a stable 5V rail. Its active PFC, half-bridge LLC conversion, built-in fan, remote sensing, and high-current output support integration into testing, computing, display processing, and industrial electronic applications.

Deployment Scenario	Application Description
Semiconductor Test Stations	Powers device-validation fixtures, burn-in platforms, test sockets, FPGA boards, and production test systems
Embedded Computing Platforms	Supports processor boards, industrial computers, control modules, and high-current digital electronics
LED Processing Systems	Supplies stable 5V power to LED receiving cards, processing controllers, display interfaces, and control electronics
Automated Test Equipment	Powers electronic loads, measurement fixtures, functional-test racks, and validation platforms
FPGA and DSP Systems	Suitable for development boards, signal-processing modules, accelerator cards, and custom computing hardware
Industrial Control Electronics	Supports low-voltage control boards, communication interfaces, data-acquisition modules, and embedded controllers

POWER DESIGN

Reliability notes for continuous operation.

The GW-GSP550W-5 combines an active-PFC input stage with a half-bridge LLC conversion architecture to produce a regulated 5V output from a universal AC source. Because the output current can reach 70A, conductor resistance, terminal quality, PCB copper capacity, connector selection, and voltage-drop control are especially important during integration.

The remote-sensing function can compensate for voltage loss between the power supply and the load. Sense wires should be routed correctly and connected according to the system design to avoid unstable regulation or incorrect compensation.
Key reliability features include:
· Active PFC with PF greater than 0.97 and half-bridge LLC conversion
· Universal 90–264Vac input compatibility
· Built-in DC fan for forced-air cooling
· Remote ON/OFF control with remote voltage sensing
· Low-ripple and low-noise regulated 5V output
· Adjustable output voltage with LED status indication
· Comprehensive SCP, OCP, OVP, and OTP protection
· 100% high-temperature burn-in testing
· Conformal-coated PCB with operation support up to 5,000 meters

INSTALLATION

Installation and operating guidance.

Confirm electrical compatibility, thermal clearance, mechanical fit, and system load before integration.

Item	Installation Recommendation
AC Input	Confirm the live, neutral, and protective-earth terminals before applying power
Output Polarity	Verify the positive and negative 5V terminals before connecting the load
Cable Selection	Use multiple short, low-resistance conductors or suitable busbars capable of carrying the full 70A output
Terminal Tightening	Secure all output terminals firmly to reduce contact resistance and localized heating
Voltage Drop	Measure voltage directly at the load under full operating current
Remote Sensing	Connect the sense lines according to the system design and keep them away from high-noise wiring
Grounding	Connect the protective-earth terminal to a reliable equipment ground
Fan Clearance	Keep the fan intake and exhaust areas free from cables, panels, and other obstructions
Installation Clearance	Maintain adequate spacing around the enclosure for forced-air cooling
Output Adjustment	Use a calibrated multimeter and make only small adjustments while monitoring the load
Load Capacity	Keep the continuous load within the rated 350W and 70A output limits
Maintenance	Disconnect the AC input and allow stored energy to discharge before inspection or servicing

FAQ

Frequently asked questions about GW-GSP550W-5.

Key answers for specification matching, installation planning, and system integration.

What type of power supply is the GW-GSP550W-5?

The GW-GSP550W-5 is an enclosed AC-DC switching power supply with active PFC, half-bridge LLC conversion, built-in forced-air cooling, remote control functions, and a regulated high-current 5V output.

What are the dimensions of the GW-GSP550W-5?

Its external dimensions are approximately 230 × 127 × 40.5 mm.

What input-voltage range does it support?

It supports a universal AC input range of 90–264Vac.

What are its rated output voltage, current, and power?

The unit provides 5V DC, a maximum output current of 70A, and a rated output power of 350W.

Does the GW-GSP550W-5 support remote sensing?

Yes. Remote sensing helps compensate for voltage drop between the power supply and the connected load, which is especially useful in high-current 5V systems.

Does the power supply include remote ON/OFF control?

Yes. The remote ON/OFF function allows the output to be enabled or disabled by an external control signal.

Does the GW-GSP550W-5 require forced-air cooling?

Yes. It includes a built-in DC fan and requires unobstructed airflow for reliable operation under high load.

What protection functions are included?

The power supply includes short-circuit, overcurrent, overvoltage, and overtemperature protection.

GW-GSP550W-5

Built for reliable, continuous power delivery.