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Variable DC Power Supply

Huge savings for variable voltage bench power supplies, fast shipping, and friendly service. 

 

Mastech has three decades of design and manufacturing know-how in variable voltage regulated DC power supplies. We offer a large selection of variable voltage and current regulated DC Power Supplies, which are also called bench power supplies, Lab Power Supplies, DC variable power supply, regulated DC power supplies, adjustable DC power supplies, AC to DC power supplies, CC CV power supplies, etc.. Mastech DC power supplies are known for their best-in-class noise and ripple performance. 

 

We are located in the heart of Silicon Valley, and offer same day delivery to select south bay cities.

 

Need help finding the right product? Email us at support@mastechpowersupply or call us at 408-622-9851.

 

There are two main designs for variable regulated DC power supplies: Linear DC Power Supply and Switching DC Power Supply. Linear DC power supplies have exceptionally low ripple but tend to be heavy and less efficient, while switching DC power supplies have very high power efficency, and good noise and ripple performance for most of applications. Currently we only make linear DC power supplies with output below 20A. Typical applications for linear DC power supplies include studio mixer/audio amplifiers, lower noise amplifiers, etc.; typical applications for switching DC power supplies include industrial and scientific research, product manufacturing and testing, electroplating, electroforming, DC motors, aviation and marine applications, etc., check here for comparison of switching and linear DC power supplies.

 

You can also choose a DC power supply based on maximum voltage output, which ranges from 15V, 18V30V, 50V, 75V, 100V, 200V, to 300V ; or by maximum current output, which ranges from 3A, 5A, 6A10A, 20A, 30A, 50A, 100A, 200A, 500A, to 1000A.

 

You can also choose the power supply by selecting one of the categories below:

 

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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…

Regulated DC Power Supply HY3030EX 0-30V 0-30A for Plating, Anodizing, Electrolysis

Regulated DC Power Supply HY3030EX 0-30V 0-30A for Plating, Anodizing, Electrolysis

$550.00 $269.95

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

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

Regulated Variable 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…

Variable Switching DC Power Supply HY5020EX 50V 20A Over Voltage Over Current Protection

Variable Switching DC Power Supply HY5020EX 50V 20A Over Voltage Over Current Protection

$550.00 $269.95

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

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…

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 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 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…

VARIABLE SWITCHING DC POWER SUPPLY 60V 20A HY6020E

VARIABLE SWITCHING DC POWER SUPPLY 60V 20A HY6020E

$700.00 $379.95

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

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 …

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 …

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 $419.95

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

VOLTEQ Power Supply HY3050EX 30V 50A Over Voltage Over Current Protection 220V Input

VOLTEQ Power Supply HY3050EX 30V 50A Over Voltage Over Current Protection 220V Input

$800.00 $419.95

This model takes 220V Input, for the same model with 110V input, please check this model instead VOLTEQ HY3…

Regulated Switching DC Power Supply HY3050EX 30V 50A Plating, Anodizing, 110V Input

Regulated Switching DC Power Supply HY3050EX 30V 50A Plating, Anodizing, 110V Input

$800.00 $419.95

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

Regulated Variable Switching Power Supply HY3050EX 0-30V 0-50A Fast Charging Lithium Battery

Regulated Variable Switching Power Supply HY3050EX 0-30V 0-50A Fast Charging Lithium Battery

$800.00 $419.95

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

Regulated Switching DC Power Supply HY3050EX 30V 50A for Slot Cars, DC Motors, Aviation, 110V Input

Regulated Switching DC Power Supply HY3050EX 30V 50A for Slot Cars, DC Motors, Aviation, 110V Input

$800.00 $419.95

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

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

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

$750.00 $419.95

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 $419.95

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

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 $419.95

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 $469.95

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 $469.95

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

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

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

$1,200.00 $499.95

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

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

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

$1,200.00 $499.95

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

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