The universal adapters are static devices that are used to convert the voltage of the power supply 220VAC, 50Hz.
Different Types of Universal Adapters
The adapters are divided into two main groups depending on the output voltage: AC / AC and AC / DC.
1. AC / AC type universal adapters are usually transformers, so they do not change the shape and frequency of the input voltage. They only change the value of the output voltage, which can be step adjustable. The consumed current is determined by the power of the universal adapter.
2. AC / DC adapters are rectifiers, which depending on the principle of operation are divided into two main groups:
Output Voltage Values for Universal Adapters
The value of the output voltage can be:
stabilized (does not depend on changes in input voltage and in the current consumption, as well as any other interfering factors within the universal power adapter);
un-stabilized. The value of the output voltage can be adjustable (smoothly or stepwise) or non-adjustable.
The universal and travel adapters are widely used to power household appliances, phones, cameras, laptops, players and much more.
According to the modern safety requirements for the various chargers, converters, adapters and low-power transformers, thermal fuses (thermal) need to be installed in the primary side. They are used to indicate the combustion temperature at which they operate. If this limit value is exceeded, the fuse interrupts the primary winding of the transformer and protects the device from ignition. For more information search for: BDS EN 60691:2003/A2:2010
In such case, the warranty of these devices will not be accepted!
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