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A chassis ground is a link between different metallic parts of a machine to ensure an electrical connection between them. [1] Examples include electronic instruments and motor vehicles. Usages
Electrical equipment may be designed with a floating ground for one of several reasons. One is safety. For example, a low-voltage DC power supply, such as a mobile phone charger, is connected to the mains through a transformer of one type or another, and there is no direct electrical connection between the current return path on the low-voltage side and physical ground (earth).
The use of the term ground (or earth) is so common in electrical and electronics applications that circuits in portable electronic devices, such as cell phones and media players, as well as circuits in vehicles, may be spoken of as having a "ground" or chassis ground connection without any actual connection to the Earth, despite "common" being ...
Common Chassis Ground – isolation between circuit common and chassis (chassis grounded). Isolated Circuit Common – isolation between circuit common and chassis (chassis floating). Isolation measurements are made with the assembly or subsystem unpowered and disconnected from any support equipment.
The G, or Ground, pin provides a connection between the earth and the vehicle chassis. The ground pin is also used as a reference point for the CP and PP signals and to measure the isolation of the electrical systems. [1] The CP, or Control Pilot, pin is used as a digital communication path between the charging system and the vehicle.
The ground loop still exists, but the two sides of the loop are close together, so stray magnetic fields induce equal currents in both sides, which cancel out. Break in the shield Create a break in the signal cable shield conductor. [5] The break should be at the load end. This is often called ground lifting. It is the simplest solution; it ...
To save weight and wire, often the metal frame of the vehicle is connected to one pole of the battery and used as the return conductor in a circuit. Often the negative pole is the chassis "ground" connection, but positive ground may be used in some wheeled or marine vehicles. In a battery electric vehicle, there are usually two separate DC systems.
Transformerless "hot chassis" televisions continued to be commonly manufactured long after transistorisation rendered live-chassis design obsolete in radios. By the 1990s, inclusion of audio-video input jacks required elimination of the floating ground as TVs needed to be interconnectable with VCRs, game consoles and video disc players.