- Univeral AC input/Full range
- Protections: short circuit, overload and overvoltage
- Forced air cooling by built-in DC fan
- PWM control and regulated
- 100% full load burn-in test
- Low cost, compact size and high efficiency
SMPS Power Supply Applications
- Power Tools
Electric Saw, Drilling Machine, Ginder, Sand Blast Machine, Puching Machine, Weeding Machine, Air Compressor, etc.
- Offices Devices
Computer, Printer, LCD Monitor, Scanning Machine, etc.
- Electrics & Household Appliance
TV, VCRS, Radio, Dust Collector, Fan Lamp or LED Strip, Sewing Machine, Microwave Oven, Fridge/Freezr, Coffemarker, etc.
- Industrial Equipemnt
Monitoring Equipment, Shipping, Vehicle, Metalhalide Lamp, Solar System, Wind Power Generation, etc.
24V DC 400W SMPS Specification
||0 ~ 16.5A
|Ripple & Noise (Max.)(Note 2)
|Voltage Adjust Range
||21.84 ~ 26.64V
|Voltage Tolerance (Note 3)
|Setup, Rise, Holdup Time
||200ms, 40ms, 30ms at full load
||90 ~ 132VAC/180V~264VAC (selected by a switch) or 254 ~ 370VDC
|AC Current (Typ.)
||8.5A/115V AC 5A/230V AC
|Inrush Current (Typ.)
||Cold start: 50A/230V AC
||105~135% rated output power
Protection type: Constant current limiting, recovers automatically after fault condition is removed.
Protection type: Hiccup mode, recovers automatically after fault condition is removed.
| Over temperature
||RTH3 ≥65°C FAN ON, ≤55°C FAN OFF, ≥80°C output shut down.
||-10 ~ +50℃
||20~90% RH non-condensing
||10~95% RH non-condensing
||10 ~ 500Hz, 2G 10min./1 cycle, period for 60min. each along X, Y, Z axes
|Safety & EMC
||I/P-O/P: 1.5KVAC I/P-FG: 1.5KVAC O/P-FG: 0.5KVAC
||I/P-O/P, I/P-FG, O/P-FG: 100M Ohms/500VDC/25℃/70% RH
||≥234.3K hrs MIN. MIL-HDBK-217F (25℃)
||1. All parameters NOT specially mentioned are measured at 230V AC input, rated load and 25°C of ambient temperature.
2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor.
3. Tolerance includes set up tolerance, line regulation and load regulation.
400W SMPS Dimension (Unit: mm)
Tips: Switching power supply vs. power adaptor
Power adaptor operates as conversion equipment for power supply. Most power adaptors are produced in small size, but they are designed in different types. For examples, there are power adaptors respectively used for DC and AC output. They also vary in their connection ways. Some adaptors are designed for wall use and some are designed for desktop use. Power adaptors are widely applied to laptops, cordless phones, repeaters, and game machines. In general conditions, power adaptors are provided with automatic test modules. In addition, voltage and current are marked on adaptors for use reference.
Switching power supply (SMPS) serves as a valve to control output of voltage and current. When opening the valve, voltage and current will be output. When closing the valve, output of voltage and current will be cut off. Switching power supply involves three major factors, namely DC, high frequency and switch. In modern society, switching power supply presents wider applications than USB chargers and adaptors. All electronic products are equipped with switching power supply.