GND,VCC,VSS,VDD,OUT,IN and other circuit terms

GND,VCC,VSS,VDD,OUT,IN and other circuit terms

The circuit diagram uses VCC to indicate the positive pole of the power supply, and GND to indicate the grounding. This is the connection point of the power supply, and the negative pole of the power supply is connected with the GND. For the circuit using low voltage AC, the access point is AC voltage, after bridge rectifying, the positive power supply and ground can be obtained. The access point can not directly transport AC power supply between VCC and ground before rectifying diode. For circuits using DC power supply, when the circuit board is typesetting, it may consider adding a row socket as the introduction line of the power supply. If there is no connector, the wire will be welded directly to the corresponding position of the circuit board. Marking or padding can be made at these locations. Someone upstairs thinks GND refers to a common connection point, with positive earthing or negative earthing. Compared to the positive pole of VCC power supply, GND is connected to common point, that is, negative grounding. In a dual power supply circuit, GND denotes the midpoint potential in addition to the common point, VCC or VDD indicates the positive pole of the power supply, VSS indicates the negative pole of the power supply, and GND indicates the zero potential (zero voltage). In a circuit, OUT is an abbreviation for OUTPUT, meaning output or output, and INPUT, is sometimes abbreviated to IN, as input or output. The input end means.