DC Motors, Aviation, and Marine


 

What is a suitable Power Supply for dc motors?

A suitable dc power supply to run a dc motor needs to have sufficiently high current ratings, ideally higher than the stalled current of the dc motor, so that the motor will be able to start even under full load. The maximum voltage of the dc power supply needs to be higher than the operating voltage of the dc motor, as recommended by the dc motor manufacturer. Finally, the dc power supply should not have short circuit protection.


What is reverse emf and how to protect your power supply from it?

A DC motor acts like an inductor when its power is interruppted, and will try to maintain the current and by doing so creates an EMF (potential) in the reverse direction; this is called reverse EMF or back EMF, which can potentially cause damage to the power supply. To protect your power supply from back EMF, you can use a diode shown below.

 

Reverse EMF DC Motor Power Supply
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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: …

Regulated Variable Linear DC POWER SUPPLY HY1503D 0-15V 0-3A

Regulated Variable Linear DC POWER SUPPLY HY1503D 0-15V 0-3A

$95.00 $79.95

VOLTEQ HY1503D is a lab grade regulated linear DC power supply. This high quality variable DC power supply has an…

REGULATED VARIABLE DC POWER SUPPLY GPS-1850D 0-20V 0-5A

REGULATED VARIABLE DC POWER SUPPLY GPS-1850D 0-20V 0-5A

$160.00 $79.95

GPS-1850D is a lab grade regulated linear DC power supply. This highly stable, high quality variable DC power sup…

REGULATED VARIABLE LINEAR DC POWER SUPPLY HY3003D 30V 3A New Model

REGULATED VARIABLE LINEAR DC POWER SUPPLY HY3003D 30V 3A New Model

$180.00 $89.95

VOLTEQ HY3003D is a lab grade regulated linear DC power supply, an improved version of the Mastech HY3003D we carri…

REGULATED VARIABLE LINEAR DC POWER SUPPLY GPS-3030D 30V 3A

REGULATED VARIABLE LINEAR DC POWER SUPPLY GPS-3030D 30V 3A

$180.00 $89.95

VOLTEQ GPS-3030D and its identical model HY3003D is a lab grade regulated linear DC power supply. This high quality…

Regulated Linear DC POWER SUPPLY HY3005D 0-30V 0-5A Over-voltage Protection

Regulated Linear DC POWER SUPPLY HY3005D 0-30V 0-5A Over-voltage Protection

$220.00 $99.95

  VOLTEQ HY3005D is a lab grade regulated linear DC power supply, an improved version of the Mastech H…

REGULATED VARIABLE DC POWER SUPPLY GPS-3050D 30V 5A

REGULATED VARIABLE DC POWER SUPPLY GPS-3050D 30V 5A

$220.00 $99.95

VOLTEQ GPS-3050D is a lab grade regulated variable DC power supply. This highly stable linear DC power supply has an …

Regulated Linear DC POWER SUPPLY HY3005DX 30V 5A 1mA Resolution

Regulated Linear DC POWER SUPPLY HY3005DX 30V 5A 1mA Resolution

$240.00 $119.95

VOLTEQ HY3005DX is a lab grade DC regulated linear DC power supply; as an improved version of HY3005D, this power…

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