The importance of a suitable power supply for a LoRa module

The power supplyis a very important peripheral accessory for the LoRa module. Many userconcerns are mostly concentrated on the performance parameters of the wireless module, so it is easy to ignore the power supply. NiceRF can tell you very responsibly that an inappropriate power supply will really affect the normaluse of the wireless module, and even lead to the expected effect.

The power supply voltage is too small：

If the power supply voltage is too small, the power of the LoRa module may not reach the maximum, which affects the transmission distance of the LoRa module. For example,the nominal supply voltage of the LoRa6500Pro wireless module is 12V. If only 5V power is supplied to the wireless module, the module must not be used normally.There was once a customer who had encountered such a thing. After the customer purchased the sample and went back, no matter how the test was done, the expected transmission distance could not be achieved. The customer thought that the quality of our product was problematic. Finally, after some inquiry and inspection, it was finally discovered. The customer's power supply voltage isonly 3.5V. After our engineers recommend replacing the working voltage with 5V,the problem will be solved.

Power supply voltage is too high：

The power supply voltage is too high and it is easy to burn out the LoRa module. Because the circuit design of the PCB of different LoRa modules will have a maximum currentvalue setting. If the maximum current value is exceeded, the upper circuit of the PCB board can easily burn out, resulting in the wireless module not working properly. According to NiceRF's years of product development experience, most of the wireless module burnout is caused by excessive power supply voltage. Soin the process of using the LoRa module, the proper power supply is really very important.

Power ripple：

The power supply ripple is a phenomenon caused by the voltage fluctuation of the DC power supply. Excessive power supply ripple will affect the normal use of the wireless module, which may result in unsatisfactory transmission of the wireless module, large interference, and even surge voltage , causing the module to burn out. Power supply ripple is unavoidable. Even the best reference voltage source device has rippled output voltage. So what we have to do is to control the power supply ripple not to be too large, so it will not affect the wireless module. Normal use.

Seeing here,everyone understands how important a suitable power supply is for wireless modules. In short, in the process of using the wireless module, it is best to use the power supply according to the manufacturer's recommendations. The content of today's article is over here. I hope that today's content can help everyone. If you have any other questions or suggestions, please feel free to contact us.