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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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…

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