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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: &…

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

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

$300.00 $139.95

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

Regulated Switching DC Power Supply HY1520EX 15V 20A

Regulated Switching DC Power Supply HY1520EX 15V 20A

$260.00 $139.95

VOLTEQ HY1520EX 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 HY3010EX Over Voltage Protection

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

$300.00 $149.95

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

Programmable DC Power Supply HY3010EP 0-30V 0-10A With Arduino Nano

Programmable DC Power Supply HY3010EP 0-30V 0-10A With Arduino Nano

$360.00 $179.95

Volteq HY3030EP is basically the same as HY3010EX, except that it comes with built-in control and programmin…

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

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

$419.95 $189.95

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

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

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

$400.00 $209.95

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 $209.95

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

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

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

$400.00 $219.95

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

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

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

$600.00 $259.95

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

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

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

$550.00 $259.95

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

VARIABLE SWITCHING DC POWER SUPPLY 30V 10A HY3010E-3 TRIPLE OUTPUTS

VARIABLE SWITCHING DC POWER SUPPLY 30V 10A HY3010E-3 TRIPLE OUTPUTS

$550.00 $269.95

This model is discontined, please check out our new model HY3010EX, which has over-voltage protection, or our open so…

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

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

$500.00 $269.95

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

Variable Regulated Switching DC Power Supply HY5020EX 50V 20A

Variable Regulated Switching DC Power Supply HY5020EX 50V 20A

$550.00 $269.95

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

$550.00 $269.95

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

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…

Regulated Variable Switching DC Power Supply HY1550EX 15V 50A

Regulated Variable Switching DC Power Supply HY1550EX 15V 50A

$550.00 $289.95

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

Mastech Regulated Variable DC Power Supply 100V 10A HY10010E

Mastech Regulated Variable DC Power Supply 100V 10A HY10010E

$600.00 $299.95

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

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 $299.95

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

Programmable DC Power Supply HY3030EP 0-30V 0-30A With Arduino

Programmable DC Power Supply HY3030EP 0-30V 0-30A With Arduino

$600.00 $299.95

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

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

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

$600.00 $299.95

Volteq HY5020EP is basically the same as HY5020EX, 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 $329.95

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

Programmable DC Power Supply HY12010EP 0-120V 0-10A With Arduino Micro

Programmable DC Power Supply HY12010EP 0-120V 0-10A With Arduino Micro

$600.00 $349.95

Volteq HY10010EP is basically the same as HY12010EX, except that it comes with built-in control and programm…

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