Power Supply Wall Plug Adapter

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Optocoupler is one of the many components inside the power adapter, with a small size, long life, strong anti-interference ability and many other excellent features. Basically every regular power adapter manufacturers in the adapter to reduce electromagnetic interference on the program, every day electricity to use it, now to talk to you about the optocoupler this thing specifically in the end what is the role.

In the complicated circuit, the optocoupler mainly plays a signaling isolation role. It may sound very abstract, the following power adapter manufacturers will simply say the optocoupler workflow and role:

Power adapter manufacturers to the adapter plus optocoupler is very meaningful, the transformer will provide a dedicated optocoupler power supply, when the optocoupler current and voltage is lower than the standard current and voltage given by the voltage regulator tube, the optocoupler will be turned on, signaling, and increase the output of the current and voltage. When the current and voltage provided by the transformer is higher than the standard current and voltage given by the voltage regulator, the optocoupler will turn off, isolate the signal and reduce the output current and voltage. The real realization of the "electric - optical - electric" circuit control.

It is worth noting that the optocoupler component also plays a role in protecting the circuit, for example, once the transformer fails, it will stop the optocoupler power supply transmission, the optocoupler will shut down the transmission of current and voltage, isolation of the circuit, thus protecting the switching tube is not burned by the breakdown of high current. So many power adapter manufacturers apply optocouplers, capacitors resistors and other components when producing power supplies.

But like some small power adapter manufacturers do not have so much to pay attention to, transformers, capacitors, resistors and a small number of components to form a power supply circuit, do not pay attention to circuit protection, charging safety is difficult to ensure. Good quality, but also to see the big manufacturers!

Eahunt power adapter manufacturers have been designing and producing power supplies for many years. Selection of high-quality raw materials, strict production process, 100% aging test, manufactured switching power supply strong and durable, safe and reliable, long service life!