What should I pay attention to when using a switching power supply?

Reasonable use of switching power supply can make it longer life, better use effect, more importantly is to ensure the safety of the user's life. The following will be used before and when the use of two aspects for you to introduce the use of switching power supply when to pay attention to matters.

Here is the content:

• Before use

• When using

Before use

Before using the switching power supply, you must read the product description and instructions for use, read the wiring markings, and confirm that the input voltage matches the value provided by the product. Select the suitable product type and size according to the usage method or the reserved space of the equipment. Such as direct welding type, desktop type, whole machine type, and baseboard type, etc. Find the corresponding specifications based on the input voltage and each output voltage and current. Determine whether the output voltage is common ground between each circuit. When multiple outputs, determine the main circuit voltage according to the load characteristics (negative, capacitive, inductive) and power variation range of each circuit. Generally, the main circuit with high output current and high voltage accuracy. To clarify the ripple noise, voltage stability, load stability, and other indicators. And according to the actual use of the temperature, humidity, vibration, and other requirements of the environment, choose a reasonable level of cost-effective products.

When using

For the switching power supply with a larger power, its output terminal has multiple junction terminals consisting of, and the terminals are connected internally (equivalent to a power supply all the way), should be evenly connected to the load. When wiring, please cut off the input power. To ensure the safety of use and reduce interference, make sure the ground terminal is reliably grounded. Most of the switching power supply cases for the heat sink installation as much as possible to increase the contact area between the case and the chassis to facilitate heat dissipation and extend the life of the power supply. Before powering on after installation, please check the wiring on the terminals again to confirm that the input and output, AC and DC, single-phase and multi-phase, positive and negative, voltage and current values are correct before use. The current value measured by the ammeter is the average current value. The user had better use an oscilloscope plus a precision resistor (choose a good wattage) to measure the peak current, the measured peak current is best not to overload. To ensure the load regulation rate and output dynamic indicators, generally require at least 10% of each road with a load. If only the auxiliary road without the main road, the main road needs to add a false load (more than 500mA) power supply output power depends mainly on the original power device, to meet customer requirements, the manufacturer to the power of each group left some margin.

If any problems cannot be solved, you can consult with the company's technical staff to achieve the best results. Improper use of the power supply will affect its life. To ensure the interests of our customers, our company's products will switch the power supply life to the maximum extent. Welcome to buy our switching power supply.