Home > News > Content
Add: No.3, Tianyang 4th Road, Datianyang Industrial Area, Songgang Town, Baoan District, Shenzhen City, China
Tel: +86-755-33925289
Fax: +86-755-33925292
Mob: +8613128892605
Contacts: Hikin
Email: hikinsong@foxmail.com

What Is The Nominal Voltage And Current Of The Power Adapter?

Shenzhen GEO Technology Co.,Ltd | Updated: Jun 09, 2017

  What is the nominal voltage and current of the power adapter? First of all, the general power supply nominal voltage, refers to the open-circuit output voltage, that is, outside of any load, no current output voltage, so it can be understood that this voltage is the power output voltage limit.

  For the internal use of the active voltage regulator in the case of the components, even if the mains voltage fluctuations, the output is also constant value, such as the market on the general small transformers, such as Walkman, such as the power supply, if the mains fluctuations, the output of the power supply will not fluctuate.

  Generally speaking, ordinary power adapter's real no-load voltage is not necessarily consistent with the nominal voltage, because the characteristics of electronic components can not be completely consistent, so there is a certain error, the smaller the error, the higher the consistency of the electronic components, the higher the cost of production, so the price is more expensive.

  In addition, on the nominal current value, no matter any power supply has a certain internal resistance, so when the power output current, will produce pressure drop in the interior, resulting in two things, one is to generate heat, so the power will be hot, the other is to reduce the output voltage, equivalent to internal consumption.