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Switching Power Supply

Switching 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 overal performance. A Switching DC power supply (also known as switch mode power supply) 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 effiency 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 for Lithium Polymer (LiPo), Lithium Ion, Lithium Manganese, A123 (LiFePO4), NiCd, NiMH, Lead Acid batteries (Flooded, Gel, AGM, SLA), etc.
  • 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 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 swiching ower 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 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 408-622-9851or check out the products below or our Selection Guide.

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Output leads for Variable Linear Power Supplies with output 20A or less

Output leads for Variable Linear Power Supplies with output 20A or less

$20.00 $9.95

For sale is a set of output leads / test leads that will work for any linear power supplies we sell that has output e…

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…

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…

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 …

Regulated Variable DC Power Supply HY3020EX 0-30V 0-20A for Anodizing, Plating

Regulated Variable DC Power Supply HY3020EX 0-30V 0-20A for Anodizing, Plating

$400.00 $219.95

VOLTEQ HY3020EX is a high current, high voltage regulated switching DC power supply, and is similar to HY3020E bu…

Regulated Varaible Switching DC Power Supply HY3020EX 30V 20A Battery Charging and Equalizing

Regulated Varaible Switching DC Power Supply HY3020EX 30V 20A Battery Charging and Equalizing

$400.00 $219.95

  VOLTEQ HY3020EX is a high current, high voltage regulated switching DC power supply, and is similar to HY3…

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…

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…

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…

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 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…

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 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…

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

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

$1,100.00 $549.95

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

Variable DC Power Supply HY3080EX 0-30V 0-80A 110V Input

Variable DC Power Supply HY3080EX 0-30V 0-80A 110V Input

$1,100.00 $549.95

VOLTEQ HY3080EX is a high current, high voltage regulated switching DC power supply with built-in over-voltage and …

DC Power Supply HY12020EX 120V 20A 110V AC Anodizing

DC Power Supply HY12020EX 120V 20A 110V AC Anodizing

$1,300.00 $549.95

VOLTEQ HY12020EX is a high current, high voltage regulated switch mode DC power supply (SMPS),  with built-in …

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

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

$950.00 $559.95

VOLTEQ HY7530EX is a high current, high voltage regulated switching DC power supply,  with built-in over-volta…

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 $559.95

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 $559.95

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

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 $599.95

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

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

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

$1,200.00 $599.95

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

$1,200.00 $599.95

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

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 $599.95

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

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

$1,400.00 $669.95

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

30V 100A Regulated Switching DC Power Supply HY30100EX Over Voltage Over Current Protection 110V Input

 30V 100A Regulated Switching DC Power Supply HY30100EX Over Voltage Over Current Protection 110V Input

$1,400.00 $669.95

VOLTEQ HY30100EX is a high current, high voltage regulated switching DC power supply with built-in over-voltage and…

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 $699.95

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

High Voltage Variable DC Power Supply HY30005EX 300V 5A

High Voltage Variable DC Power Supply HY30005EX 300V 5A

$1,400.00 $699.95

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

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…

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 $799.95

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

High Current Rectifier for Electroplating Anodizing HY15200EX 15V 200A

High Current Rectifier for Electroplating Anodizing HY15200EX 15V 200A

$2,000.00 $999.95

VOLTEQ HY15200EX is a high current electroplating rectifier with built-in over-voltage and over-current protection,…

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

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

$3,300.00 $1,600.00

VOLTEQ HY30200EX is a high current electroplating rectifier with built-in over-voltage and over-current protection,…

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

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

$3,300.00 $1,600.00

VOLTEQ HY30200EX is a high current electroplating rectifier with built-in over-voltage and over-current protection,…

Volteq High Current Rectifier for Electroplating Anodizing HY10500EX 10V 500A

Volteq High Current Rectifier for Electroplating Anodizing HY10500EX 10V 500A

$3,400.00 $1,700.00

VOLTEQ HY10500EX is a high current electroplating rectifier with built-in over-voltage and over-current protection,…

Plating Rectifier with RS485 0-30V 0-200A Electroplating Anodizing Electrocoagulation

Plating Rectifier with RS485 0-30V 0-200A Electroplating Anodizing Electrocoagulation

$3,600.00 $1,800.00

VOLTEQ HY30200EP is a heavy duty commercial grade rectifier, ideal for anodizing and plating applications in commer…

Volteq High Current Rectifier for Electroplating Anodizing HY051000EX 5V 1000A

Volteq High Current Rectifier for Electroplating Anodizing HY051000EX 5V 1000A

$4,000.00 $1,999.95

VOLTEQ HY051000EX is a high current electroplating rectifier with built-in over-voltage and over-current protection…

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