24 volt switching power supply features rated current 4.5A, 108W rated power, converting universal AC input to DC output. High performance SMPS power supply is widely used in industrial automatic control, research equipment, LED lighting, etc.
- AC input range can be selectable with switch.
- SMPS power supply comes with short circuit / over load protections.
- Switching power supply featues natural cooling, 100% full load burn-in test for reliable use.
- Fixed switching frequency is at 25KHz.
- Low cost, high reliability. 1 year warranty is available.
24V 5A SMPS Power Supply Specification
|Ripple & Noise （Max.）||100mVp-p|
|Voltage Adjustment Range||21.6~26.4V|
|Setup, Rise, Hold Time||200ms, 80ms, 20ms at full load.|
|Input||Voltage Range||85~132V AC / 180~264V AC selected by switch, 255~370V DC|
|AC Current||2.4A/115V AC, 1.2A/230V AC|
|Inrush Current (Max.)||Cold start 30A/115V AC, 60A/230V AC|
|Leakage Current||＜1mA/240V AC|
|Protection||Over Load||105~150% rated output power|
|Protection type : Shut down o/p voltage, re-power on to recover|
|Environment||Working Temperature||-10 ~ +60℃ (Refer to output load derating curve)|
|Working Humidity||20 ~ 90% RH non-condensing|
|Storage Temperature & Humidity||-20 ~ +85℃, 10 ~ 95% RH|
|Temperature Coefficient||+0.03%/℃ (0~50℃)|
|Vibration||10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes|
|Safety & EMC||Safety Standard||Design refer to UL1012|
|Withstand Volatge||I/P-O/P:1.5KVAC, I/P-FG:1.5KVAC, O/P-FG:0.5KVAC|
|Isolation Resistance||I/P-O/P, I/P-FG, O/P-FG:100M Ohms/500VDC|
|EMI Conduction & Radiation||Design refer to FCC Part15 J Conduction Class B|
|Others||MTBF||322.4K hrs min. MIL-HDBK-217F (25℃)|
|Note||1. All parameters are measured at 230V AC input, rated load and 25℃ of ambient temperature if they are NOT specially mentioned.
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.
SMPS Power Supply Details
SMPS Power Supply Dimension (Unit: mm)
KNOWLEDGE BASE --- Switching Power Supply Working Principle
The working principle of switching power supply is different from that of linear power supply. Linear power supply makes the power transistor work in linear mode, while switching power supply makes the power transistor work in two working states, on and off. In other words, the amplitude of the input DC voltage is cut into the pulse voltage equal to the amplitude of the input voltage. When SMPS power supply is on, the voltage is low and the current is large, while off, the voltage is high and the current is small, namely, the loss generated on the power transistor is very small.
The switching power supply has two working modes: forward conversion and boost conversion. Although the circuit difference is small, the working process is very different and it is suitable for different occasions and requirements.