The voltage is too low to refer to the INPUT voltage range below the switching power supply
In general, the input voltage is low, if the output can meet your requirements, there is no big problem.
because:
The input voltage is low, in the same output power, the input line current will increase, if the margin is not enough, it will obviously heat. If the investigation is reasonable and mature switching power supply program, the input voltage is low, or leave enough margin, or limit the output power, or even into the undervoltage protection state. In addition, the input voltage is low, the switching tube withstand voltage will be reduced, the failure rate will be reduced.
How little, but not large, because the switching power supply is 110 volts or 220 volts input, but the output voltage is regulated output power, so no harm, do not worry
The input voltage below the allowable range will reduce the output power of the switching power supply, the stability of the output voltage will be poor, adjust the stability of the tube will rise, if the input voltage is below the allowable range of switching power supply is not working or stop jobs.
Switching power supply connected to the power supply voltage is too low on the switching power supply harmless:
All the switching power supply power input voltage range is wide, generally in the 150-260V can be normal output. But less than 150V when the switching power supply will not start that does not work, nor output, but will not be damaged. Therefore, the switching power supply is superior to the transformer step-down rectifier power supply, with high energy efficiency, stable and reliable output, load failure when the advantages of automatic protection, widely used in various types of electrical appliances.
