Switching DC Power Supply

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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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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…

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