1. Grounding is a system engineering. When it comes to grounding, it is necessary to clearly indicate which grounding is connected:
Grounding can be divided into protective grounding, working grounding, intrinsically safe system grounding, anti-static grounding and lightning protection grounding.
2, pc M should generally be connected to work ground:
1) Instrument and control system working grounding includes: instrument signal circuit grounding and shielding grounding.
2) The isolated signal can be ungrounded. Here, "isolation" means that the circuit of each input signal (or output signal) is insulated from the circuit of other input signals (or output signals) and is insulated from the ground, and the power sources are independent and isolated from each other.
3) Non-isolated signals are usually referenced to the negative pole of the DC power supply and grounded. Signal distribution is used as a reference point.
4) The principle of working grounding of the instrument is single point grounding. The grounding circuit should be avoided in the signal circuit. If the signal source and receiving instrument on one line are unavoidably grounded, the isolator should be used to isolate the two points from ground.
3, grounding form and grounding principle System grounding form is mainly divided into equipotential grounding and separate grounding. The grounding principle is a single point grounding.
Automotive Connector
Automobile connector is a kind of component that electronic engineers often contact. Its function is very simple: in the circuit is blocked or isolated between the circuit, set up a bridge of communication, so that the current flow, so that the circuit to achieve the intended function. The form and structure of automobile connector are ever-changing. It is mainly composed of four basic structural components: contact parts, shell (depending on the type), insulator.
Automotive Connector
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