Switching DC Power Supply

Guaranteed the best price, fast shipping, and friendly service. 

 

Switching DC power supplies were first introduced in the late 1970's, today they are the most popular form of DC power supplies in the market due to their exceptional power efficiency and great overall performance. A Switching DC power supply (also known as switch mode power supply or SMPS) regulates the output voltage through a process called pulse width modulation (PWM). The PWM process generates some high frequency noise, but enables the switching power supplies to be built with very high power efficiency and small form factor. With a good design, a switching power supply can have excellent load and line regulation. Typical applications for switching DC power supplies include:

 

  • general purpose use including R&D, manufacturing and testing
  • high power / high current applications
  • communications systems, mobile stations, network equipments, etc.
  • electroplating, anodizing, electroforming, electrophoresis, etc.
  • Battery charging and equalization for Lithium Ion batteries, marine and vehicle batteries
  • electrolysis, waste treatment, hydrogen generator, fuel cell applications, etc. 
  • DC motors, slot cars, aviation and marine applications, etc.

 

For three decades, Mastech has built the regulated variable switching DC power supplies with the least noise and ripple in the industry. Our switching power supplies are widely used in R&D and lab environment because of their exceptional noise performance. The design choice to minimize the noise does come with some drawback: slower response and more sensitive to reverse EMF from the load. As a result, the Mastech switching power supplies are not suitable for battery charging, anodizing, LED applications, electroplating (use as plating rectifiers) and anodizing, electrolysis, electroforming, hydrogen generation and any electrochemical applications.

 

Recognizing the shortcomings, we have launched in 2012 a new line of switching DC power supplies under Volteq brand to address the growing customer needs in battery charging, LED applications, DC motors, electroplating and anodizing, electrolysis & hydrogen generation, slot cars, automotive, aviation and marine applications. The Volteq switching power supplies, with built-in over-voltage and reverse-voltage protection, are tough as rock, and yet still provide excellent noise and ripple performance by employing the state of art technology.

 

Need help finding the right product? Email us at support@mastechpowersupply or call us at 408-622-9851, or check out the products below or our Selection Guide.

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Output leads for Variable Switching DC Power Supplies with output less than 900W

Output leads for Variable Switching DC Power Supplies with output less than 900W

$20.00 $9.95

For sale is a set of output leads / test leads that will work for the following switching DC power supply models: …

Output Leads for Variable Switching DC Power Supplies with output 900W or more

Output Leads for Variable Switching DC Power Supplies with output 900W or more

$30.00 $14.95

For sale is a set of output leads / test leads that will work for the following switching DC power supply models: …

Output leads for Variable Switching DC Power Supplies with output 80A or more

Output leads for Variable Switching DC Power Supplies with output 80A or more

$40.00 $19.95

For sale is a set of output leads / test leads that will work for the following switching DC power supply models: &…

30V 10A Regulated Switching DC Power Supply HY3010EX Over Voltage Protection

30V 10A Regulated Switching DC Power Supply HY3010EX Over Voltage Protection

$300.00 $199.95

5.0 average, based on 1 reviews

VOLTEQ HY3010EX is the updated version of HY3010E with built-in over-voltage and reverse-voltage protection, ideal fo…

Regulated Switching DC Power Supply HY1520EX 15V 20A

Regulated Switching DC Power Supply HY1520EX 15V 20A

$280.00 $199.95

5.0 average, based on 1 reviews

VOLTEQ HY1520EX is a high current regulated switching DC power supply with built-in over-voltage and over-current p…

Regulated Variable Switching DC Power Supply HY3020EX 0-30V 0-20A

Regulated Variable Switching DC Power Supply HY3020EX 0-30V 0-20A

$400.00 $229.95

  VOLTEQ HY3020EX is a high current, high voltage regulated switching DC power supply, and is similar to …

Programmable DC Power Supply HY3020EP 0-30V 0-20A

Programmable DC Power Supply HY3020EP 0-30V 0-20A

$500.00 $269.95

Volteq HY3020EP is a programmable DC power supply with built-in Arduino Micro controller. If you are familia…

Mastech Regulated Variable Switching DC Power Supply 30V 10A HY3010E

Mastech Regulated Variable Switching DC Power Supply 30V 10A HY3010E

$300.00 $289.95

This model is replaced with updated model HY3010EX.   Got a question? Call us at 408-622-9851. M…

Regulated Variable Switching DC Power Supply HY1530EX 0-15V 0-30A

Regulated Variable Switching DC Power Supply HY1530EX 0-15V 0-30A

$419.95 $289.95

VOLTEQ HY1530EX is a high current regulated switching DC power supply with built-in over-voltage and over-current p…

30V/10A Regulated Switching DC power supply

30V/10A Regulated Switching DC power supply

$550.00 $299.95

This model is discontined, please check out our new model HY3010EX, which has over-voltage protection.   M…

VARIABLE SWITCHING DC POWER SUPPLY 50V 20A HY5020E 1000W

VARIABLE SWITCHING DC POWER SUPPLY 50V 20A HY5020E 1000W

$550.00 $299.95

Note: if you plan to use this for battery charging or electrochemical applications like plating and eletrolysis, pl…

Variable Regulated Switching DC Power Supply HY5020EX 50V 20A

Variable Regulated Switching DC Power Supply HY5020EX 50V 20A

$550.00 $299.95

VOLTEQ HY5020EX is a high current, high voltage regulated switching DC power supply, and is similar to HY5020E bu…

Switching DC Power Supply HY3030EX 0-30V 0-30A

Switching DC Power Supply HY3030EX 0-30V 0-30A

$650.00 $299.96

VOLTEQ HY3030EX is a high current, high voltage regulated switching DC power supply, and is similar to HY3030E bu…

MASTECH VARIABLE REGULATED SWITCHING DC POWER SUPPLY 30V 20A HY3020E 600W

MASTECH VARIABLE REGULATED SWITCHING DC POWER SUPPLY 30V 20A HY3020E 600W

$400.00 $329.95

Note: this product is temporarily out of stock, please check our new and improved model Volteq HY3020EX. Got a…

VARIABLE REGULATED SWITCHING DC POWER SUPPLY 50V 5A HY5005-2 DUAL OUTPUTS

VARIABLE REGULATED SWITCHING DC POWER SUPPLY 50V 5A HY5005-2 DUAL OUTPUTS

$349.00

  This model is discontinued, please check out our single output model HY5005D or HY5020EX (0-50V, 0-20A). …

VARIABLE SWITCHING DC POWER SUPPLY 30V 30A HY3030E 900W HIGH CURRENT

VARIABLE SWITCHING DC POWER SUPPLY 30V 30A HY3030E 900W HIGH CURRENT

$600.00 $349.95

  Got a question? Call us at 408-622-9851. Please check out our new model HY3030EX with over-voltage protect…

Programmable DC Power Supply HY5020EP 0-50V 0-20A With Arduino

Programmable DC Power Supply HY5020EP 0-50V 0-20A With Arduino

$600.00 $349.95

Volteq HY5020EP is a programmable DC power supply with built-in Arduino Micro controller. This is the update…

MASTECH POWER SUPPLY 30V 20A Programmable RS232 HY3020MR 600W

MASTECH POWER SUPPLY 30V 20A Programmable RS232 HY3020MR 600W

$500.00 $369.95

This model is being phased out, please check out our updated model HY3020EP, which is based on open source Arduino …

Programmable DC Power Supply HY3030EP 0-30V 0-30A With Automatic Reverse Polarity

Programmable DC Power Supply HY3030EP 0-30V 0-30A With Automatic Reverse Polarity

$800.00 $369.95

Volteq HY3030EP is basically the same as HY3030EX, except that it comes with built-in control and programmin…

Programmable DC Power Supply HY3030EP 0-30V 0-30A New Model

Programmable DC Power Supply HY3030EP 0-30V 0-30A New Model

$650.00 $369.95

Volteq HY3030EP is a programmable DC power supply with built-in Arduino Micro controller. This is the update…

VARIABLE REGULATED SWITCHING DC POWER SUPPLY 60V 5A HY6005-3 DUAL OUTPUTS

VARIABLE REGULATED SWITCHING DC POWER SUPPLY 60V 5A HY6005-3 DUAL OUTPUTS

$800.00 $395.00

  Volteq HY6005-3 is a lab grade DC regulated switching power supply, a high quality variable switching…

Switching DC Power Supply HY6020EX 60V 20A Over Voltage Over Current Protection

Switching DC Power Supply HY6020EX 60V 20A Over Voltage Over Current Protection

$750.00 $399.95

VOLTEQ HY6020EX is a high current, high voltage regulated switching DC power supply, and is similar to HY6020E but …

Regulated Variable Switching DC Power Supply HY1550EX 15V 50A

Regulated Variable Switching DC Power Supply HY1550EX 15V 50A

$550.00 $399.95

VOLTEQ HY1550EX is a high current regulated switching DC power supply with built-in over-voltage and over-current p…

60V 20A VARIABLE SWITCHING DC POWER SUPPLY HY6020E

60V 20A VARIABLE SWITCHING DC POWER SUPPLY  HY6020E

$750.00 $399.95

MASTECH HY6020E is a high current, high voltage variable switching DC power supply; this high quality voltage r…

Regulated Switching DC Power Supply HY5030EX 50V 30A 220V Input

Regulated Switching DC Power Supply HY5030EX 50V 30A 220V Input

$750.00 $449.95

This model takes 220V Input, for the same model with 110V input, please check this model instead VOLTEQ HY5030…

Switching DC Power Supply HY5030EX 0-50V 0-30A 110V Input

Switching DC Power Supply HY5030EX 0-50V 0-30A 110V Input

$750.00 $449.95

VOLTEQ HY5030EX is a high current, high voltage regulated switching DC power supply, with built-in over-voltage and…

Programmable DC Power Supply HY1550EP 0-15V 0-50A

Programmable DC Power Supply HY1550EP 0-15V 0-50A

$700.00 $449.95

  Volteq HY1550EP is a programmable DC power supply with built-in Arduino Micro controller. If you a…

0-100V 0-10A Regulated Switching DC Power Supply HY10010EX Over Voltage Over Current Protection

0-100V 0-10A Regulated Switching DC Power Supply HY10010EX Over Voltage Over Current Protection

$600.00 $479.95

Guaranteed the best price, fast shipping, and friendly service. HY10010EX is a high current, high voltage…

Variable Switching DC Power Supply HY12010EX 120V 10A

Variable Switching DC Power Supply HY12010EX 120V 10A

$750.00 $489.95

VOLTEQ HY12010EX is a high current, high voltage variable regulated switching DC power supply, ideal for battery ch…

Programmable DC Power Supply HY3050EP 0-30V 0-50A

Programmable DC Power Supply HY3050EP 0-30V 0-50A

$900.00 $499.95

Volteq HY3050EP is a programmable DC power supply with built-in Arduino Micro controller. If you are familia…

MASTECH VARIABLE REGULATED DC POWER SUPPLY 30V 50A HY3050E 1500W HIGH CURRENT

MASTECH VARIABLE REGULATED DC POWER SUPPLY 30V 50A HY3050E 1500W HIGH CURRENT

$800.00 $549.95

Note: if you plan to use the power supply for battery charging and DC motors, please get our new and updated model&nb…

30V 50A Regulated DC Power Supply HY3050EX Over Voltage Over Current Protection 110V Input

30V 50A Regulated DC Power Supply HY3050EX Over Voltage Over Current Protection 110V Input

$800.00 $549.95

VOLTEQ HY3050EX is a high current, high voltage regulated switching DC power supply, and is similar to HY3050E but …

Variable Switching Power Supply HY7520EX 0-75V 0-20A 220V Input

Variable Switching Power Supply HY7520EX 0-75V 0-20A 220V Input

$800.00 $569.95

This model takes 220V Input, for the same model with 110V input, please check this model instead VOLTEQ HY7520…

Switching DC Power Supply HY7520EX 75V 20A Over Voltage Over Current Protection 110V Input

Switching DC Power Supply HY7520EX 75V 20A Over Voltage Over Current Protection 110V Input

$800.00 $569.95

VOLTEQ HY7520EX is a high current, high voltage regulated DC power supply, with built-in over-voltage and over-curr…

Mastech Regulated Variable DC Power Supply 100V 10A HY10010E

Mastech Regulated Variable DC Power Supply 100V 10A HY10010E

$600.00 $579.95

Note: we are out of stock on this model, please check into our HY10010EX, which is an updated version of this. …

Switch Mode DC Power Supply HY7530EX 75V 30A Over Voltage Over Current Protection 110V Input

Switch Mode DC Power Supply HY7530EX 75V 30A Over Voltage Over Current Protection 110V Input

$950.00 $619.95

VOLTEQ HY7530EX is a high current, high voltage regulated switch mode DC power supply (SMPS),  with built-…

Switching DC Power Supply HY7530EX 0-75V 0-30A 220V Input

Switching DC Power Supply HY7530EX 0-75V 0-30A 220V Input

$950.00 $619.95

VOLTEQ HY7530EX is a high current, high voltage regulated switch mode DC power supply,  with built-in over-vol…

Switch Mode DC Power Supply HY10020EX 100V 20A 110V AC

Switch Mode DC Power Supply HY10020EX 100V 20A 110V AC

$1,400.00 $699.95

VOLTEQ HY10020EX is a high current, high voltage regulated switch mode DC power supply (SMPS),  with built-in …

200V 10A Regulated Switching DC Power Supply HY20010EX Over Voltage Over Current Protection 110V AC

200V 10A Regulated Switching DC Power Supply HY20010EX Over Voltage Over Current Protection 110V AC

$1,200.00 $699.95

VOLTEQ HY20010EX is a high current, high voltage regulated switching DC power supply,  with built-in over-volt…

Switching DC Power Supply HY10020EX 100V 20A 220V AC

Switching DC Power Supply HY10020EX 100V 20A  220V AC

$1,400.00 $699.95

This model takes 220V Input, for the same model with 110V input, please check this model instead VOLTEQ HY1002…

Regulated Switching DC Power Supply HY20010EX 0-200V 0-10A 220V AC

Regulated Switching DC Power Supply HY20010EX 0-200V 0-10A 220V AC

$1,200.00 $729.95

VOLTEQ HY20010EX is a high current, high voltage regulated swiching DC power supply,  with built-in over-volta…

Programmable DC Power Supply HY30005EP 0-300V 0-5A Electrophoresis

Programmable DC Power Supply HY30005EP 0-300V 0-5A Electrophoresis

$1,600.00 $799.95

Volteq HY30005EP is a programmable DC power supply with built-in Arduino Micro controller. If you are famili…

VOLTEQ DC Power Supply HY30005EX 300V 5A for Plating and Anodizing,110V AC

VOLTEQ DC Power Supply HY30005EX 300V 5A for Plating and Anodizing,110V AC

$1,300.00 $799.95

VOLTEQ HY30005EX is a high voltage regulated switching DC power supply,  with built-in over-voltage and over-c…

Regulated Variable Switching DC Power Supply HY5050EX 50V 50A 220V Input

Regulated Variable Switching DC Power Supply HY5050EX 50V 50A 220V Input

$1,400.00 $799.95

This model takes 220V Input, for the same model with 110V input, please check this model instead VOLTEQ HY5050…

Variable Switching DC Power Supply HY5050EX 0-50V 0-50A

Variable Switching DC Power Supply HY5050EX 0-50V 0-50A

$1,400.00 $799.95

VOLTEQ HY5050EX is a high current, high voltage regulated switching DC power supply, with built-in over-voltage and…

High Voltage Variable DC Power Supply HY30005EX 300V 5A

High Voltage Variable DC Power Supply HY30005EX 300V 5A

$1,400.00 $799.95

VOLTEQ HY30005EX is a high voltage regulated switching DC power supply,  with built-in over-voltage and over-c…

Regulated Switching DC Power Supply HY3080EX 30V 80A 220V Input

Regulated Switching DC Power Supply HY3080EX 30V 80A 220V Input

$1,300.00 $874.95

This model takes 220V Input, for the same model with 110V input, please check this model instead VOLTEQ HY3080…

Variable DC Power Supply HY30100EX 30V 100A Over Voltage Over Current Protection 220V Input

Variable DC Power Supply HY30100EX 30V 100A Over Voltage Over Current Protection 220V Input

$1,600.00 $1,049.95

This model takes 220V Input, for the same model with 110V input, please check this model instead VOLTEQ HY3010…

15V 150A Regulated Switching DC Power Supply HY15150EX Over Voltage Over Current Protection 110V Input

15V 150A Regulated Switching DC Power Supply HY15150EX Over Voltage Over Current Protection 110V Input

$1,800.00 $1,150.00

VOLTEQ HY15150EX is a high current, high voltage regulated switching DC power supply with built-in over-voltage and…

200A DC Power Supply for Electroplating Anodizing HY30200EX 0-30V

200A DC Power Supply for Electroplating Anodizing HY30200EX 0-30V

$4,500.00 $2,395.00

VOLTEQ HY30200EX is a high current 200A electroplating power supply with built-in over-voltage and over-current pro…

High Current 200A Power Supply for Electroplating Anodizing HY30200EX 0-30V

High Current 200A Power Supply for Electroplating Anodizing HY30200EX 0-30V

$4,500.00 $2,395.00

VOLTEQ HY30200EX is a 200A electroplating power supply with built-in over-voltage and over-current protection, idea…

High Current Power Supply for Electroplating Waste Water Treatment HY30200RX 30V 200A wth Reverse Polarity

High Current Power Supply for Electroplating Waste Water Treatment HY30200RX 30V 200A wth Reverse Polarity

$4,000.00 $2,795.00

VOLTEQ HY30200RX is a high current 200A electroplating power supply with built-in reverse polarity, ideal for elect…

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