DC socket in the circuit is also very frequently used, today Dongguan Dongkun Electronic Technology Co., Ltd. to introduce the basic composition and structure, in these areas we need to understand and understand.

Power supply - generally refers to a DC source, which itself is controlled by another communication source, such as a 120 V, 60 Hz line. Therefore, this type of power supply can be considered as a communication-DC converter copy. The DC socket produced by Shenzhen good electronics can supply stable frequency and fluctuation. The communication source from DC source is called inverter. Some power sources are controlled by DC sources, and wells can generate energy at different DC levels. Such power sources are called DC-DC converters. The DC source controlled by a communication source consists of one or more of the following elements:

1. Rectifier: Change the communication voltage to the pulsating DC voltage, and only allow the current to act according to one target;

2. Low-pass filter: in the rectifier waveform, it can press the pulse and let its DC (average) weight pass through;

3. Voltage regulator: In the environment where the on-line voltage and the load current of the power supply change, it can connect the abundant and stable voltage output.

The two and three legs of DC socket are connected when the plug is not inserted. When the plug is inserted, the three legs are separated from the two legs. So three feet and one feet are roughly connected.

It should be noted that plugs are always positive and negative, but not cleaning a small number of self-made plugs is negative, so it is safe to use a multimeter before the best use, in order to avoid burning chips.

Above is the basic structure and structure of DC socket. I hope you will pay attention to these problems when using them to ensure the understanding of DC socket.