Micro vacuum pumps, micro air pumps, and micro water pumps have two main requirements for power supply:
(1) The micro vacuum pump power supply must have a voltage regulation function.
Micro vacuum pumps, micro air pumps, micro pumps, etc., after connecting the power supply, the power supply voltage should be stable under any load and working conditions. It is a good solution to match the switching power supply. If the power supply is not regulated, the voltage may be high when the pump is not connected. Once the pump is connected, the power supply voltage drops sharply. Even if the voltage after connecting the pump is equal to the rated operating voltage. Because the pump's input power demand will change once the pump load changes, the power supply voltage will fluctuate abnormally, causing the pump to be completely turbulent.
It is also not advisable to divide and depressurize by resistors, because the operating current of the pump changes when the load of the gas (water) path changes, resulting in a change in the partial pressure of the resistor. Therefore, the power supply must have a voltage regulation function. In actual purchase, with the voltage regulator function and without, the price difference is very small, it is recommended to buy the voltage regulator function.
Common misunderstandings: The transformers used by the customer for the lamps, the result is not to move the micro air pump or the micro water pump. (Because the transformer used in the luminaire is an AC transformer, it only turns 220 AC into 12V or 24V AC. It does not have the filtering and voltage regulation function of the DC switching power supply.)
(2) The power supplied by the power supply should be sufficient.
The output current that the power supply can provide must be greater than the operating current of the pump to ensure the pump's energy requirements. Also, when purchasing a power supply, be sure not to choose a switching power supply that is too cheap. Because this kind of power supply is usually used to attract customers to purchase, the parameters are usually false and false. See the experiment below to understand.
If the above conditions are not met, these failure phenomena may occur: the pump cannot be started, or it may be stopped during operation due to the immobile load, or the work may be weak.
The common misunderstanding is:
1. Use electrical control components (such as manifolds) to power the pump directly; this type of problem is prone to occur.
2. Some customers use 12V6A switching power supply to supply the micro high-pressure water pump HSP11050-12V (the maximum working current of the pump is 10.5A, see the table below). As a result, the pump will move without moving; it is thought that the pump is faulty, according to our suggestion After replacing the power supply with 12V14A, the problem is solved.
3. Contrast experiment: Miniature high pressure water pump HSP11050-24V, respectively, with our MV24V6A and "x" dragon power supply 24V6A power supply (the same nominal current, voltage, power), no-load, direct connection pump. MV24V6A is easy to drive the pump to work normally; the power light of the "x" dragon power supply is dimmed, direct current protection, and the pump will stop when it is not moving; and the price of the "x" dragon power supply in the market is better than Our power supply is much cheaper.
Note: The “load current†parameter we give does not take into account the inrush current when the pump is started. Therefore, the supporting power supply should also consider the problem of withstanding the inrush current. Equipment principle: The current that can be supplied is preferably 1.5 times or more of the maximum load current.
For more details on the power supply, please visit: http://
Reference: Chengdu Xinweicheng Technology http://
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