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MEAN WELL Switching Power Supplies(Representative Standard:TUV)

MEAN WELL offers products Switching Power Supplies specified by Representative Standard TUV from Electrical & Controls product category. There are a total of 13 items. Parts and equipment for controlling machines and electrical systems. Controllers and power supplies. MEAN WELL products are available to order through MISUMI online 24/7. Free shipping, no minimum order.
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  • You can add up to 6 items per a category to the compare list.

    Switching Power Supply 35~600W Low profile Single Output Enclosed Type, LRS Series
    Switching Power Supply 35~600W Low profile Single Output Enclosed Type, LRS Series
    Switching Power Supply 35~600W Low profile Single Output Enclosed Type, LRS Series
    Switching Power Supply 35~600W Low profile Single Output Enclosed Type, LRS Series
    Switching Power Supply 35~600W Low profile Single Output Enclosed Type, LRS Series
    Switching Power Supply 35~600W Low profile Single Output Enclosed Type, LRS Series
    Switching Power Supply 35~600W Low profile Single Output Enclosed Type, LRS Series
    Switching Power Supply 35~600W Low profile Single Output Enclosed Type, LRS Series
    Switching Power Supply 35~600W Low profile Single Output Enclosed Type, LRS Series

    Switching Power Supply 35~600W Low profile Single Output Enclosed Type, LRS Series

    MEAN WELL

    [Features]· Universal AC input / full-range· Can withstand surge input of 300 V AC for 5 seconds· Protection: short circuit / overload / overvoltage / overheating· Cooling: natural air cooling (LRS-350 series: forced cooling via built-in DC fan)· Miniature size / 1U thin-type· Compliant with IEC / EN 60335-1 (PD3) and IEC / EN61558-1, 2-16 for home appliances (not applicable for LRS-200 series and LRS-350 series)· Can be operated at an altitude of 5,000 meters· Passed vibration testing at 5G· LED indicator with power ON· No load power consumption

    Capacity(W) Output voltage (Single only) Shape Input Voltage Rated output current (single only)(A) Single/multi Dimension height(mm) Input/output terminal shape Representative Standard Dimension depth(mm) Number of Channels Dimension width(mm) Included Function
    35 ~ 150 DC3.3V / DC5V / DC12V / DC24V / DC48V / Other With Cover AC/DC 0.8 ~ 14 Single 30 Screw TUV 99 ~ 159 - 82 ~ 97 -
    From: 364,121 VND
    Days to Ship: Số ngày giao hàng: 4 Day(s) or more
    day to ship 4 Day(s) or more
  • You can add up to 6 items per a category to the compare list.

    Switching Power Supply (DIN Series)

    Switching Power Supply (DIN Series)

    MEAN WELL

    [Features]· Universal AC input / Full range· Installed on DIN rail TS35 / 7.5 or 15· Protections: Short circuit / Overload / Overvoltage· No load power consumption

    Capacity(W) Output voltage (Single only) Shape Input Voltage Rated output current (single only)(A) Single/multi Dimension height(mm) Input/output terminal shape Representative Standard Dimension depth(mm) Number of Channels Dimension width(mm) Included Function
    10 ~ 480 DC5V / DC12V / DC24V DIN rail direct attachment AC/DC 0.42 ~ 20 Single 22.5 ~ 125.2 European format TUV 100 ~ 128.5 - 22.5 ~ 125.2 -
    From: 624,900 VND
    Days to Ship: Số ngày giao hàng: Same day or more
    day to ship Same day or more
  • You can add up to 6 items per a category to the compare list.

    Switching Power Supply 75~960W High Performance DIN Rail Power, SDR Series)

    Switching Power Supply 75~960W High Performance DIN Rail Power, SDR Series)

    MEAN WELL

    Taiwan Meanwell Corp. is the world's third largest sales scale standard power supply manufacturerOptimum capacity for PLC or control equipment power supply, the DIN rail type (35 mm: DIN rail attachable)

    Capacity(W) Output voltage (Single only) Shape Input Voltage Rated output current (single only)(A) Single/multi Dimension height(mm) Input/output terminal shape Representative Standard Dimension depth(mm) Number of Channels Dimension width(mm) Included Function
    10 ~ 480 DC24V DIN rail direct attachment AC/DC 0.42 ~ 20 Single 22.5 ~ 125.2 European format TUV 100 ~ 128.5 - 22.5 ~ 125.2 -
    From: 701,370 VND
    Days to Ship: Số ngày giao hàng: Same day or more
    day to ship Same day or more
  • You can add up to 6 items per a category to the compare list.

    Switching Power Supply, DC 24V Output with Case (RS / HRP Series) [HRP-100]

    Switching Power Supply, DC 24V Output with Case (RS / HRP Series) [HRP-100]

    MEAN WELL

    Taiwan Meanwell Corp. is the world's third largest sales scale standard power supply manufacturerOptimum capacity for PLC and control equipment power supply lineup. Compact type, high efficiency, long life design[Features]· Compact type suitable for auxiliary power supply of PLC and control equipment.· Compact type, high efficiency, long life.· Aluminum electrolytic capacitor long life 105°C item.· Single output type 150 to 600W lineup

    Capacity(W) Output voltage (Single only) Shape Input Voltage Rated output current (single only)(A) Single/multi Dimension height(mm) Input/output terminal shape Representative Standard Dimension depth(mm) Number of Channels Dimension width(mm) Included Function
    100 ~ 648 DC24V With Cover AC/DC 4.5 ~ 27 Single 97 ~ 218 Screw TUV 38 ~ 248 - 38 ~ 105 Fan for cooling
    From: 1,434,622 VND
    Days to Ship: Số ngày giao hàng: 4 Day(s) or more
    day to ship 4 Day(s) or more
  • You can add up to 6 items per a category to the compare list.

    Switching Power Supply 15~150W Mini Watt Multi-Output Enclosed Type, RS Series
    Switching Power Supply 15~150W Mini Watt Multi-Output Enclosed Type, RS Series
    Switching Power Supply 15~150W Mini Watt Multi-Output Enclosed Type, RS Series
    Switching Power Supply 15~150W Mini Watt Multi-Output Enclosed Type, RS Series
    Switching Power Supply 15~150W Mini Watt Multi-Output Enclosed Type, RS Series

    Switching Power Supply 15~150W Mini Watt Multi-Output Enclosed Type, RS Series

    MEAN WELL

    Single output switching power supply[Features]· Universal AC input / full range· Protection: short circuit / overload / over-voltage/ over-temperature· Cooling: natural air cooling· POWER-ON LED display

    • Volume Discount
    Capacity(W) Output voltage (Single only) Shape Input Voltage Rated output current (single only)(A) Single/multi Dimension height(mm) Input/output terminal shape Representative Standard Dimension depth(mm) Number of Channels Dimension width(mm) Included Function
    15 ~ 150 DC5V / DC12V / DC24V With Cover AC/DC 1.3 ~ 16 Single 28 ~ 38 Screw TUV 62.5 ~ 199 - 51 ~ 98 -
    From: 510,168 VND
    Days to Ship: Số ngày giao hàng: 4 Day(s) or more
    day to ship 4 Day(s) or more
  • You can add up to 6 items per a category to the compare list.

    Switching Power Supply 15~150W Step Shape DIN Rail Power, HDR Series
    Switching Power Supply 15~150W Step Shape DIN Rail Power, HDR Series
    Switching Power Supply 15~150W Step Shape DIN Rail Power, HDR Series
    Switching Power Supply 15~150W Step Shape DIN Rail Power, HDR Series
    Switching Power Supply 15~150W Step Shape DIN Rail Power, HDR Series

    Switching Power Supply 15~150W Step Shape DIN Rail Power, HDR Series

    MEAN WELL

    [Features] Insulation class: Class II Universal AC input / full range (277 V AC operating voltage) No load power consumption: < 0.3 W Protection functions: Short circuiting / overload / overvoltage DIN rail mounting: TS-35 / 7.5 or 15 Cooling: natural air cooling Adjustable DC output voltage POWER-ON LED display Ideal for constructing controls and the automation of home appliances

    Capacity(W) Output voltage (Single only) Shape Input Voltage Rated output current (single only)(A) Single/multi Dimension height(mm) Input/output terminal shape Representative Standard Dimension depth(mm) Number of Channels Dimension width(mm) Included Function
    15 ~ 60 DC24V DIN rail direct attachment AC/DC 0 to 0.63 ~ 0 to 2.5 Single 90 - TUV 54 ~ 54.5 - 17.5 ~ 52.5 -
    From: 532,280 VND
    Days to Ship: Số ngày giao hàng: 4 Day(s) or more
    day to ship 4 Day(s) or more
  • You can add up to 6 items per a category to the compare list.

    Power Supply 10~96W Ultra Slim DIN Rail Power, MDR Series

    Power Supply 10~96W Ultra Slim DIN Rail Power, MDR Series

    MEAN WELL

    Taiwan Meanwell Corp. is the world's third largest sales scale standard power supply manufacturerThe optimum capacity for auxiliary power supplies for relays and sensors in the control panel, the DIN rail type (35 mm: DIN rail attachable)

    Capacity(W) Output voltage (Single only) Shape Input Voltage Rated output current (single only)(A) Single/multi Dimension height(mm) Input/output terminal shape Representative Standard Dimension depth(mm) Number of Channels Dimension width(mm) Included Function
    10 ~ 100 DC5V / DC12V DIN rail direct attachment AC/DC 0.84 ~ 10 Single 22.5 ~ 90 European format TUV 100 - 22.5 ~ 90 -
    From: 624,900 VND
    Days to Ship: Số ngày giao hàng: 4 Day(s) or more
    day to ship 4 Day(s) or more
  • You can add up to 6 items per a category to the compare list.

    Switching Power Supply (G3 Series)

    Switching Power Supply (G3 Series)

    MEAN WELL

    [Features]· No load power consumption

    Capacity(W) Output voltage (Single only) Shape Input Voltage Rated output current (single only)(A) Single/multi Dimension height(mm) Input/output terminal shape Representative Standard Dimension depth(mm) Number of Channels Dimension width(mm) Included Function
    125 - With Cover AC/DC - Multi 199 Screw TUV 38 2 98 -
    From: 1,623,658 VND
    Days to Ship: Số ngày giao hàng: 54 Day(s)
    day to ship 54 Day(s)
  • You can add up to 6 items per a category to the compare list.

    Switching Power Supply (PFC Series)

    Switching Power Supply (PFC Series)

    MEAN WELL

    [Features]· Universal AC input / Full range.· Withstand 300 V AC surge input for 5 seconds.· Built-in active PFC function.· Protections: Short circuit / Overload / Overvoltage / Over temp. (optional for HRP-75 / HRP-100)· Built-in constant current limiting circuit.· Built-in remote sense function (HRP□-150 / 200)· No load power consumption

    Capacity(W) Output voltage (Single only) Shape Input Voltage Rated output current (single only)(A) Single/multi Dimension height(mm) Input/output terminal shape Representative Standard Dimension depth(mm) Number of Channels Dimension width(mm) Included Function
    75 ~ 10000 DC12V / DC24V / DC48V / DC36V With Cover AC/DC 3.125 ~ 400 Single 97 ~ 295 Screw TUV 30 ~ 248 - 38 ~ 177.8 Fan for cooling
    From: 1,434,622 VND
    Days to Ship: Số ngày giao hàng: 4 Day(s) or more
    day to ship 4 Day(s) or more
  • You can add up to 6 items per a category to the compare list.

    75~1000W High Reliability Enclosed Type (with PFC function), HRP Series

    75~1000W High Reliability Enclosed Type (with PFC function), HRP Series

    MEAN WELL

    Taiwan Meanwell Corp. is the world's third largest sales scale standard power supply manufacturerThe optimum capacity for auxiliary power supplies for relays and sensors in the control panel. Compact type, high efficiency, long life design[Features]· Compact type suitable for auxiliary power supply of relays and sensors.· Compact type, high efficiency, long life.· Aluminum electrolytic capacitor long life 105°C item.· Single output type.· DIN rail mounting bracket and direct mounting bracket available

    Capacity(W) Output voltage (Single only) Shape Input Voltage Rated output current (single only)(A) Single/multi Dimension height(mm) Input/output terminal shape Representative Standard Dimension depth(mm) Number of Channels Dimension width(mm) Included Function
    15 ~ 300 DC5V / DC12V With Cover AC/DC 1.3 ~ 60 Single 28 ~ 159 Screw TUV 38 ~ 216 - 38 ~ 97 Fan for cooling
    From: 541,968 VND
    Days to Ship: Số ngày giao hàng: 4 Day(s) or more
    day to ship 4 Day(s) or more
  • You can add up to 6 items per a category to the compare list.

    Switched-mode Power Supply, Circuit Board Type, Open Frame (NFM/MPS/RPS Series)

    Switched-mode Power Supply, Circuit Board Type, Open Frame (NFM/MPS/RPS Series)

    MEAN WELL

    Taiwan Meanwell Corp. is the world's third largest sales scale standard power supply manufacturerConnector type small board type switching power supply I/O connection is best for embedded power supply[Features]· Small board type is best for embedded power supply.· Compact type, high efficiency, long life.· Single output type: 20 to 60W, multi output type: 60W.· I / O connection is connector type

    Capacity(W) Output voltage (Single only) Shape Input Voltage Rated output current (single only)(A) Single/multi Dimension height(mm) Input/output terminal shape Representative Standard Dimension depth(mm) Number of Channels Dimension width(mm) Included Function
    60 DC5V / DC12V / DC24V Open frame AC/DC 2.5 ~ 10 Single 32 Connector TUV 50.8 - 101.6 -
    From: 574,908 VND
    Days to Ship: Số ngày giao hàng: 4 Day(s) or more
    day to ship 4 Day(s) or more
  • You can add up to 6 items per a category to the compare list.

    LED Power Supply, PCB type

    LED Power Supply, PCB type

    MEAN WELL

    Single output switching power supply (open frame model)[Features]· Universal AC input / full range (up to AC305V)· Power factor correction circuit· Protection: short circuit / overload / over-voltage/ over-temperature· Cooling: natural air cooling· Output current adjustable· Class2 power unit

    Capacity(W) Output voltage (Single only) Shape Input Voltage Rated output current (single only)(A) Single/multi Dimension height(mm) Input/output terminal shape Representative Standard Dimension depth(mm) Number of Channels Dimension width(mm) Included Function
    40.3 Other Open frame AC/DC 0.96 Single 27 Connector TUV 147 - 53 -
    From: 1,015,087 VND
    Days to Ship: Số ngày giao hàng: 6 Day(s) or more
    day to ship 6 Day(s) or more
  • You can add up to 6 items per a category to the compare list.

    Switching Power Supply Open Frame 50~150W Single Output Industrial PCB Type, LPS Series

    Switching Power Supply Open Frame 50~150W Single Output Industrial PCB Type, LPS Series

    MEAN WELL

    Single output switching power supply (open frame model)[Features]· Universal AC input / full range· Protection: short circuit / overload / over-voltage/ over-temperature· Cooling: natural air cooling· Compact size· Remote control (ON/OFF) built in· POWER-ON LED display

    Capacity(W) Output voltage (Single only) Shape Input Voltage Rated output current (single only)(A) Single/multi Dimension height(mm) Input/output terminal shape Representative Standard Dimension depth(mm) Number of Channels Dimension width(mm) Included Function
    75 DC24V Open frame AC/DC 3.2 Single 30 Connector TUV 222 - 55 -
    From: 725,633 VND
    Days to Ship: Số ngày giao hàng: 4 Day(s) or more
    day to ship 4 Day(s) or more
BrandNhãn hiệu
Product SeriesDòng sản phẩm
From
Days to ShipSố ngày giao hàng
Capacity(W)
Output voltage (Single only)
Shape
Input Voltage
Rated output current (single only)(A)
Single/multi
Dimension height(mm)
Input/output terminal shape
Representative Standard
Dimension depth(mm)
Number of Channels
Dimension width(mm)
Included Function

    You can add up to 6 items per a category to the compare list.

    Switching Power Supply 35~600W Low profile Single Output Enclosed Type, LRS Series
      Switching Power Supply 35~600W Low profile Single Output Enclosed Type, LRS Series
      Switching Power Supply 35~600W Low profile Single Output Enclosed Type, LRS Series
      Switching Power Supply 35~600W Low profile Single Output Enclosed Type, LRS Series
      Switching Power Supply 35~600W Low profile Single Output Enclosed Type, LRS Series
      Switching Power Supply 35~600W Low profile Single Output Enclosed Type, LRS Series
      Switching Power Supply 35~600W Low profile Single Output Enclosed Type, LRS Series
      Switching Power Supply 35~600W Low profile Single Output Enclosed Type, LRS Series
      Switching Power Supply 35~600W Low profile Single Output Enclosed Type, LRS Series

        You can add up to 6 items per a category to the compare list.

        Switching Power Supply (DIN Series)

            You can add up to 6 items per a category to the compare list.

            Switching Power Supply 75~960W High Performance DIN Rail Power, SDR Series)

                You can add up to 6 items per a category to the compare list.

                Switching Power Supply, DC 24V Output with Case (RS / HRP Series) [HRP-100]

                    You can add up to 6 items per a category to the compare list.

                    Switching Power Supply 15~150W Mini Watt Multi-Output Enclosed Type, RS Series
                      Switching Power Supply 15~150W Mini Watt Multi-Output Enclosed Type, RS Series
                      Switching Power Supply 15~150W Mini Watt Multi-Output Enclosed Type, RS Series
                      Switching Power Supply 15~150W Mini Watt Multi-Output Enclosed Type, RS Series
                      Switching Power Supply 15~150W Mini Watt Multi-Output Enclosed Type, RS Series

                        You can add up to 6 items per a category to the compare list.

                        Switching Power Supply 15~150W Step Shape DIN Rail Power, HDR Series
                          Switching Power Supply 15~150W Step Shape DIN Rail Power, HDR Series
                          Switching Power Supply 15~150W Step Shape DIN Rail Power, HDR Series
                          Switching Power Supply 15~150W Step Shape DIN Rail Power, HDR Series
                          Switching Power Supply 15~150W Step Shape DIN Rail Power, HDR Series

                            You can add up to 6 items per a category to the compare list.

                            Power Supply 10~96W Ultra Slim DIN Rail Power, MDR Series

                                You can add up to 6 items per a category to the compare list.

                                Switching Power Supply (G3 Series)

                                    You can add up to 6 items per a category to the compare list.

                                    Switching Power Supply (PFC Series)

                                        You can add up to 6 items per a category to the compare list.

                                        75~1000W High Reliability Enclosed Type (with PFC function), HRP Series

                                            You can add up to 6 items per a category to the compare list.

                                            Switched-mode Power Supply, Circuit Board Type, Open Frame (NFM/MPS/RPS Series)

                                                You can add up to 6 items per a category to the compare list.

                                                LED Power Supply, PCB type

                                                    You can add up to 6 items per a category to the compare list.

                                                    Switching Power Supply Open Frame 50~150W Single Output Industrial PCB Type, LPS Series
                                                      BrandNhãn hiệu

                                                      MEAN WELL

                                                      MEAN WELL

                                                      MEAN WELL

                                                      MEAN WELL

                                                      MEAN WELL

                                                      MEAN WELL

                                                      MEAN WELL

                                                      MEAN WELL

                                                      MEAN WELL

                                                      MEAN WELL

                                                      MEAN WELL

                                                      MEAN WELL

                                                      MEAN WELL

                                                      Product SeriesDòng sản phẩm

                                                      Switching Power Supply 35~600W Low profile Single Output Enclosed Type, LRS Series

                                                      Switching Power Supply (DIN Series)

                                                      Switching Power Supply 75~960W High Performance DIN Rail Power, SDR Series)

                                                      Switching Power Supply, DC 24V Output with Case (RS / HRP Series) [HRP-100]

                                                      Switching Power Supply 15~150W Mini Watt Multi-Output Enclosed Type, RS Series

                                                      Switching Power Supply 15~150W Step Shape DIN Rail Power, HDR Series

                                                      Power Supply 10~96W Ultra Slim DIN Rail Power, MDR Series

                                                      Switching Power Supply (G3 Series)

                                                      Switching Power Supply (PFC Series)

                                                      75~1000W High Reliability Enclosed Type (with PFC function), HRP Series

                                                      Switched-mode Power Supply, Circuit Board Type, Open Frame (NFM/MPS/RPS Series)

                                                      LED Power Supply, PCB type

                                                      Switching Power Supply Open Frame 50~150W Single Output Industrial PCB Type, LPS Series

                                                      From

                                                      364,121 VND-

                                                      624,900 VND-

                                                      701,370 VND-

                                                      1,434,622 VND-

                                                      510,168 VND-

                                                      532,280 VND-

                                                      624,900 VND-

                                                      1,623,658 VND

                                                      1,434,622 VND-

                                                      541,968 VND-

                                                      574,908 VND-

                                                      1,015,087 VND

                                                      725,633 VND

                                                      Days to ShipSố ngày giao hàng 4 Day(s) or more Same day or more Same day or more 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 54 Day(s) 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 6 Day(s) or more 4 Day(s) or more
                                                      Capacity(W)35 ~ 15010 ~ 48010 ~ 480100 ~ 64815 ~ 15015 ~ 6010 ~ 10012575 ~ 1000015 ~ 3006040.375
                                                      Output voltage (Single only)DC3.3V / DC5V / DC12V / DC24V / DC48V / OtherDC5V / DC12V / DC24VDC24VDC24VDC5V / DC12V / DC24VDC24VDC5V / DC12V-DC12V / DC24V / DC48V / DC36VDC5V / DC12VDC5V / DC12V / DC24VOtherDC24V
                                                      ShapeWith CoverDIN rail direct attachmentDIN rail direct attachmentWith CoverWith CoverDIN rail direct attachmentDIN rail direct attachmentWith CoverWith CoverWith CoverOpen frameOpen frameOpen frame
                                                      Input VoltageAC/DCAC/DCAC/DCAC/DCAC/DCAC/DCAC/DCAC/DCAC/DCAC/DCAC/DCAC/DCAC/DC
                                                      Rated output current (single only)(A)0.8 ~ 140.42 ~ 200.42 ~ 204.5 ~ 271.3 ~ 160 to 0.63 ~ 0 to 2.50.84 ~ 10-3.125 ~ 4001.3 ~ 602.5 ~ 100.963.2
                                                      Single/multiSingleSingleSingleSingleSingleSingleSingleMultiSingleSingleSingleSingleSingle
                                                      Dimension height(mm)3022.5 ~ 125.222.5 ~ 125.297 ~ 21828 ~ 389022.5 ~ 9019997 ~ 29528 ~ 159322730
                                                      Input/output terminal shapeScrewEuropean formatEuropean formatScrewScrew-European formatScrewScrewScrewConnectorConnectorConnector
                                                      Representative StandardTUVTUVTUVTUVTUVTUVTUVTUVTUVTUVTUVTUVTUV
                                                      Dimension depth(mm)99 ~ 159100 ~ 128.5100 ~ 128.538 ~ 24862.5 ~ 19954 ~ 54.51003830 ~ 24838 ~ 21650.8147222
                                                      Number of Channels-------2-----
                                                      Dimension width(mm)82 ~ 9722.5 ~ 125.222.5 ~ 125.238 ~ 10551 ~ 9817.5 ~ 52.522.5 ~ 909838 ~ 177.838 ~ 97101.65355
                                                      Included Function---Fan for cooling----Fan for coolingFan for cooling---

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                                                      1. 1

                                                      Related Categories to Switching Power SuppliesDanh mục liên quan đến Switching Power Supplies

                                                      FAQ Switching Power Supplies

                                                      Question: What is switching power supply?
                                                      Answer: A switching power supply is a device for transforming electricity from High voltage alternating current to low-voltage direct current to supply electronic circuits. Switching power supply has the advantage point that smaller and lighter than the Linear power supply. On the other hand, the heat transfer area is smaller than the Linear power supply.
                                                      Question: What is the principle of Switching power supply?
                                                      Answer: A switching power supply is working by a rectifier that converts alternating current voltage to direct current voltage. Then converter will convert direct current to high-frequency direct current and convert alternating current voltage to alternating current. Another important part is the Control circuit which utilizes to control converter to supply correct outout voltage.
                                                      Question: What are the components and their usage of switching power supply?
                                                      Answer: 1. Filter and rectifier are used to convert alternating current voltage to direct current voltage.
                                                      2. Converter is used to convert direct current to high-frequency direct current and convert alternating current voltage to alternating current.
                                                      3. Control circuit which utilizes to control converter to supply correct outout voltage.
                                                      Question: What are the different points between switching the power supply and transformer?
                                                      Answer: A switching power supply is a device for transforming electricity from High voltage alternating current to low-voltage direct current. While transformers are using for transform the voltage level Up/Down of alternating current
                                                      Question: What do I need to know before purchasing the switching power supply?
                                                      Answer: 1. A Total load of electrical equipment.
                                                      2. Consideration of mounting position and installation.
                                                      3. Consideration of required features and specifications.
                                                      4. Installation area should have good air flow for heat transfers. Heat affected the efficiency of switching the power supply.
                                                      Question: How to select a switching power supply?
                                                      Answer: 1. Maximum capacities should be over the total load by at least 30%.
                                                      2. Should beware of the temperature of the operation area.
                                                      3. Should consider the operating environment.
                                                      4. Consideration of Power Supply Standards Compliance