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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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

$1,600.00 $1,049.95

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

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 $1,150.00

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

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

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

$4,500.00 $2,395.00

VOLTEQ HY30200EX is a 200A electroplating power supply with built-in over-voltage and over-current protection, idea…

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