Wangma Switching Power Supply, as a professional switching power supply brand, has important value in industrial, security, medical and other fields for its quality and reliability.

Core electrical parameters of switch power supply

Load regulation rate: reflects the stability of the output voltage of the power supply when the load changes. Industrial grade power supplies usually require ≤ 0.5%

Power factor: measures the efficiency of electricity utilization. High quality power sources have a power factor of ≥ 0.99, which can reduce harmonic pollution in the power grid

Efficiency: High conversion efficiency (such as>90%) can reduce heat generation and energy consumption, and 80 PLUS certification is a common standard.

Switching power supply safety and certification

Compulsory certification: such as CCC in China, CE in the European Union, UL/cUL in the United States, to ensure compliance with regional safety standards.

Industry certification: Medical equipment requires EN 60601-1, and industrial equipment requires anti-interference certification (such as EN 61000-6-2)

Environmental label: RoHS certification restricts harmful substances (such as lead content ≤ 0.1%).

Physical and Thermal Design of Switching Power Supply

Size and Installation: DIN Rail is suitable for industrial control cabinets, and PCB soldering is used for built-in equipment

Heat dissipation method: natural convection heat dissipation (silent) or forced air cooling (high-power), matching the working temperature range (such as -20 ℃ to+70 ℃)

Performance and Function of Switching Power Supply

Protection functions: essential overcurrent (OCP), overvoltage (OVP), short circuit (SCP) protection, and important scenarios require over temperature protection (OTP)

Isolation voltage: Isolation withstand voltage (such as 3000VAC) between input and output is crucial for safety

Ripple control: Low ripple power supply is suitable for precision instruments and needs to be verified through oscilloscope testing

Analysis of Switching Power Supply Brands and Models

Model code: For example, in "LRS-100-24", "LRS" is the series, "100" is the power (100W), and "24" is the output voltage (24VDC)

Risk of false labeling: Choose reputable brands such as Wangma Power Supply to avoid low priced power supplies falsely labeling power

Dynamic response test of switch power supply

By observing the voltage recovery time during sudden load changes through an oscilloscope, a high-quality power supply should quickly stabilize (e.g.<50ms)