15V DC 20A 300W Switching Power Supply

5 out of 5 based on 1 reviews | Write a review

$77.34

Cheap 15V DC 20A 300W switching power supply can convert universal AC power to DC power, cooling by built-in DC fan, with short circuit, overload and overvoltage protections, ideal SMPS power supply for a wide range of applications like computer, printer, LED light, monitoring camera, etc.

SKU: ATO-SMPS-300-15

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Delivery date: 6-12 days

Overview

Features

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

Specification

Model		ATO-S-300-15
Output	DC Voltage	15V
	Rated Current	20A
	Current Range	0 ~ 20A
	Rated Power	300W
	Ripple & Noise (Max.)(Note 2)	150mVp-p
	Voltage Adjust Range	13.5 ~ 18V
	Voltage Tolerance (Note 3)	±1.0%
	Line Regulation	±0.5%
	Load Regulation	±0.5%
	Setup, Rise, Holdup Time	200ms, 50ms, 20ms at full load
Input	Voltage Range	90 ~ 132VAC/180V~264VAC (selected by a switch) or 254 ~ 370VDC
	Frequency Range	47~63Hz
	Efficiency (Typ.)	78%
	AC Current (Typ.)	6.5A/115V AC 4A/230V AC
	Inrush Current (Typ.)	Cold start: 50A/230V AC
	Leakage Current	<3.5mA/240V AC
Protection	Overload	105~135% rated output power Protection type: Constant current limiting, recovers automatically after fault condition is removed.
	Overvoltage	18~21V 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.
Environment	Working Temperature	-10 ~ +50℃
	Working Humidity	20~90% RH non-condensing
	Storage Temperature	-20~+85℃
	Storage Humidity	10~95% RH non-condensing
	Temperature Coefficient	±0.03%/℃ (0~50℃)
	Vibration	10 ~ 500Hz, 2G 10min./1 cycle, period for 60min. each along X, Y, Z axes
Safety & EMC	Withstand Voltage	I/P-O/P: 1.5KVAC I/P-FG: 1.5KVAC O/P-FG: 0.5KVAC
Safety & EMC	Isolation Resistance	I/P-O/P, I/P-FG, O/P-FG: 100M Ohms/500VDC/25℃/70% RH
Others	MTBF	≥234.3K hrs MIN. MIL-HDBK-217F (25℃)
	Dimension	21511550mm (LWH)
	Weight	1.1kg
Note	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.

Dimensions (Unit: mm)

Details

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.

Tips: Different working modes of switching power supply and linear power supply

Power devices of linear power supply operate in linear status. In other words, the power devices never stop once started, so they perform poorly in terms of their working efficiency which proves to be 50-60%. As required by its working mode, linear power supply must be equipped with a step-down transformer to help it complete the transformation from high voltage to low voltage. Then, the voltage would be output as DC voltage through rectification. Its working mode determines its poor performance in size, efficiency and calorific value. However, the linear power supply also has advantages. It generates less noise due to less ripples and satisfactory adjustment rate. The linear power supply is applicable to artificial circuit and various amplifiers.

Power devices of switching power supply operate in switching status with fast frequency (power devices switch at a frequency of 100-200 KHz and the module power supply operates at a frequency of 300-500 KHz). Their switching status improves performance of switching power supply in power loss and working efficiency. However, it comes up with higher requirements for transformers. The transformers applied to switching power supply must be made of materials with high magnetic conductivity. They are designed to achieve an efficiency of 80-90%. The switching power supply is characterized by higher efficiency and smaller size, but it appears poorer than linear power supply in terms of ripples and adjustment rates of voltage or current.

Existing reviews of 15V DC 20A 300W Switching Power Supply

20A switching power supply works great as expected.

I ordered this 20A switching power supply to replace my 10A unit because I needed higher current for more light strips. As soon as receiving it, I replaced my old one with the new one. It works great as expected. All in all, works fine

From: Annabelle | Date: 17/12/2018

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