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24V DC Cooling Fan to reduce resistance

Time:2014-12-17 Click:510Times

"24V DC Cooling Fan" to minimize the wire resistance and contact resistance of the power of the most simple application shown in Figure 9 a 19. FIG power supply output voltage is 5V, the load current of 4A. Using this power, in addition to current and load effect the desired value to select the desired output should minimize wire resistance between the power supply and the load. For example, "24V DC Cooling Fan" using 50cm long 18 copper wire, two wires 21mΩ total resistance, and therefore, there is 84mV voltage drop on the lead, accounting for 1.68% of the output voltage. If the power supply itself loading effect of 0.1%, the actual load in this circuit effect is 1.78%, amounting to less than the value of the indicator. The method of solving this problem is possible to shorten the length of the wire or thick wire selection. Another important factor "24V DC Cooling Fan" impact loading effect of contact resistance and the load connected to the power supply at the end, especially at high currents

DONGGUAN XINGDONG ELECTRONICS CO., LTD.

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