Home
Motor Controls
- Back
- Variable Frequency Drives
- Soft Starters
  - Back
- Servo Drives
  - Back
  - AC Servo Drives
- Vibration Motor Controllers
  - Back
- Stepper Motor Drivers
  - Back
  - 2 Phase Stepper Driver
  - 3 Phase Stepper Driver
- BLDC Motor Controllers
  - Back
Power Supplies
- Back
- Transformers
- Power Inverters
- Frequency Converter
- Voltage Stabilizers
- DC Power Supplies
- Line Reactors
  - Back
  - AC Reactors
  - DC Reactors
- Phase Converter
  - Back
- Power Regulator
  - Back
- Variac Voltage Regulators
  - Back
- Uninterruptible Power Supplies
  - Back
Passive Components
- Back
- Automatic Transfer Switches
  - Back
- Contactors
- Connectors
  - Back
  - Circular Connector
  - Heavy Duty Connector
- Circuit Breakers
- Capacitors
  - Back
- Current Transformer
  - Back
- DIP Switch
  - Back
- Filters
  - Back
- Foot Switch
  - Back
- Forward Reverse Switch
  - Back
- Hook-Up Wire
  - Back
- Isolator Switch
  - Back
- Indicator Light
  - Back
- Junction Box
  - Back
- Joystick Switch
  - Back
- Locking Plugs
  - Back
- LED Machine Light
  - Back
- Push Button
  - Back
  - Momentary Push Button
- Pressure Switch
  - Back
  - Oil Pressure Switch
- Relays
- Rotary Switch
  - Back
- Rocker Switch
  - Back
- Surge Protection Devices
  - Back
- Terminal Block
  - Back
- Toggle Switch
  - Back
Sensors
- Back
- Accelerometer Sensor
  - Back
- Angle Sensor
  - Back
- Current Sensor
  - Back
- Ultrasonic Sensor
  - Back
  - Ultrasonic Distance Sensor
- Radiation Sensor
  - Back
- Displacement Sensor
  - Back
  - Magnetostrictive Sensor
- Encoder
  - Back
  - Absolute Encoder
  - Incremental Encoder
- Flow Switch
  - Back
- Float Switch
  - Back
- Gyroscope Sensor
  - Back
- Inclinometer Sensor
  - Back
- Load Cell
  - Back
- Level Sensor
  - Back
- Laser Sensor
  - Back
  - Laser Distance Sensors
- Limit Switch
  - Back
- Magnetic Cylinder Sensor
  - Back
- Proximity Sensor
- pH Electrode
  - Back
- Pressure Sensor
  - Back
- Photoelectric Sensor
  - Back
- Signal Isolator
  - Back
- Safety Switch
  - Back
- Torque Sensor
  - Back
- Tilt Sensor
  - Back
- Temperature Sensor
  - Back
  - Thermocouple
  - RTD Sensor
  - Infrared Temperature Sensor
- Temperature and Humidity Sensor
  - Back
- Voltage Sensor
  - Back
- Vibration Transmitters
  - Back
Test & Measurement
- Back
- Anemometer
  - Back
- Air Quality Monitor
  - Back
- Colorimeter
  - Back
- Clamp Meter
  - Back
- Crane Scale
  - Back
- Conductivity Meter
  - Back
- Current Transformer Tester
  - Back
- Digital Inclinometer
  - Back
- Digital Counter
  - Back
- Digital Readout
  - Back
- Digital Panel Meter
  - Back
- Dew Point Meter
  - Back
- Digital Torque Adapters
  - Back
- Energy Meter
  - Back
- Flow Meters
  - Back
- Function Generator
  - Back
- Gas Detectors
  - Back
- Gloss Meter
  - Back
- Hipot Tester
  - Back
- Hardness Tester
  - Back
- Infrared Thermometers
  - Back
- Insulation Tester
  - Back
- LCR Meter
  - Back
- Linear Scale
  - Back
- Moisture Meter
  - Back
- Oscilloscopes
  - Back
- OTDR Optical Time Domain Reflectometer
  - Back
- pH Meter
  - Back
- Paperless Recorder
  - Back
- Relay Tester
  - Back
- Refractometer
  - Back
- Spectrophotometers
  - Back
- Sound Level Meter
  - Back
- Timer Relays
  - Back
- Temperature Controller
  - Back
- Temperature Data Logger
  - Back
- Ultrasonic Thickness Gauge
  - Back
- Viscometer
  - Back
- Vibration Meter
  - Back
- Water Quality Tester
  - Back
Transmission & Actuator
- Back
- Air Filters
  - Back
- Air Hose Fittings
  - Back
- Brakes and Clutches
- Ball Screw Bearing
  - Back
- Ball Valves
  - Back
- Butterfly Valves
  - Back
- Door Opener
  - Back
- Drag Chain
  - Back
- Electric Valve Actuators
  - Back
- FRL Unit
  - Back
- Gearbox
  - Back
  - Planetary Gearbox
  - Worm Gearbox
  - Right Angle Gearbox
- Hydraulic Actuator
  - Back
- Hand Valves
  - Back
- Linear Actuators
  - Back
- Linear Ball Bearings
  - Back
- Linear Slide
  - Back
- Pneumatic Cylinders
  - Back
- Pressure Regulator
  - Back
- Solenoid Valves
- Shaft Coupling
  - Back
  - Diaphragm Coupling
  - Rigid Coupling
  - Jaw Coupling
- Slip Ring
  - Back
- Vacuum Generator
  - Back
Pumps
- Back
- Aerator Pump
  - Back
- Booster Pump
  - Back
  - Air Pressure Booster
- Centrifugal Pump
- Dosing Pump
  - Back
- Diaphragm Pump
  - Back
  - Air Diaphragm Pump
  - Electric Diaphragm Pump
- Gear Pump
  - Back
- Hydraulic Pump
  - Back
  - Hydraulic Electric Pump
- Lobe Pump
  - Back
- Lubrication Pump
  - Back
- Peristaltic Pump
  - Back
- Vacuum Pump
  - Back
Tools
- Back
- Alarm & Siren
  - Back
- Blower
  - Back
  - Air Blower
  - Regenerative Blower
- Centrifuge Machine
  - Back
- DC Cooling Fan
  - Back
- Endoscope
  - Back
- Electric Winch
  - Back
- Electric Pressure Washer
  - Back
- Foam Cutter
  - Back
- Generator
- Heat Exchanger
  - Back
- Hydraulic Punch
  - Back
- Hoist
  - Back
  - Air Hoist
  - Electric Hoist
- Impact Wrenches
  - Back
- Inkjet Printer
  - Back
- Magnetic Sweepers
  - Back
- Magnetic Stirrer
  - Back
- Pipettes
  - Back
- Portable LED Work Light
  - Back
- Rubber Sheets
  - Back
- Screw Feeder
  - Back
- Soldering Station
  - Back
- Sander
  - Back
Communication & Controller
- Back
- Data Acquisition
  - Back
  - Data Transfer Unit
- HMI (Human Machine Interface)
  - Back
- Industrial PCs
  - Back
- Industrial Ethernet Switch
- Programmable Logic Controller
  - Back
- Communications Cables and Accessories
  - Back
  - CAN BUS Converter
  - RS232/RS485 Converter
  - RS-485 Hub
  - Fiber Converter
Industrial Equipment
- Back
- Air Compressors
- CNC Router Machine
  - Back
- Dryer
  - Back
- Dehumidifier
  - Back
- Fume Extractor
  - Back
- Fan Heater
  - Back
- Industrial Cameras
  - Back
  - Industrial Camera Lenses
- Industrial Vacuum Cleaner
  - Back
- Laser Machines
  - Back
  - Laser Marker
- Oil Mist Eliminators
  - Back
- SCARA Robot
  - Back
- Static Eliminator
  - Back
- Tool Setter
  - Back
- Ultrasonic Cleaner
  - Back
- Water Chiller
  - Back
- Welding Machine
  - Back
- Water Purification System
  - Back
Motor
- Back
- Brushless DC Motors
- Servo Motors
  - Back
  - AC Servo Motors
  - DC Servo Motors
  - RC Servo Motors
  - Linear Servo Motors
- Gear Motors
  - Back
  - AC Gear Motors
  - DC Gear Motors
- Vibration Motors
- Stepper Motors
- Induction Motors
- Spindle Motors
  - Back
  - ATC Spindle
  - Air Cooled Spindle
  - Water Cooled Spindle
- Hydraulic Motors
  - Back
  - Orbital Motors
  - Hydraulic Pump Motors
  - Radial Piston Motor
- Brushed DC Motors
  - Back
- Hub Motors
  - Back
- Synchronous Motors
  - Back
- Compressor Motors
  - Back
- Air Motors
  - Back
  - Piston Air Motor
  - Vane Air Motor
Get a Discount
How To Buy
Contact
Chat

Home > Power Supplies > DC Power Supplies > Switching Power Supplies

Send Inquiry

15V DC 20A 300W Switching Power Supply

$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 sho

SKU: CHN-SMPS-300-15

Free Shipping Worldwide

Delivery date: 6-12 days

Overview
Documents

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		CHN-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)

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.

CCHN Industry

Motor

Motor Controls

Power Supplies

Passive Components

Sensors

Test & Measurement

Transmission & Actuator

Pumps