ELECTRONIC CIRCUITS AND SYSTEMS Individual semiconductor devices are called discrete devices; a number of them may be used in a circuit. Such devices are common in charging, ignition, and headlamp circuits that handle large amounts of power. The more sophisticated electronic control systems now being used on the vehicle, however, make use of integrated circuits and microprocessors or onboard computers.
INTEGRATED CIRCUITS
An integrated circuit (IC) has hundreds, even thousands, of discrete devices on a single silicon chip. These include diodes, transistors, resistors, and capacitors. The IC is usually packaged in ceramic or plastic and each tiny device inside are connected to one or more leads that plug into a larger on-vehicle circuit. 1) One type can process analog signals - those that change continuously with time. 2) Another type can process digital signals - those that change intermittently "on" or "off" with time.
MICROPROCESSORS
Microprocessors, or on-board computers, are used on various electronic control systems. Such systems have three basic parts: 1) Sensors tell what is happening. 2) Microprocessor computes the data and decides what to do. 3) Actuators or controls respond to change or display the condition.
AutoHex (Auto Diagnostic scanner) is one of the best Professional scan tools to for Cars; Autohex Scanner can test the Systems of the Car effectively and easily, with many powerful features to help you in diagnosing and testing.
BMW Key Programming by HTag Pro, All keys lost
Description
Individual semiconductor devices are called discrete devices, a number of them may be used in a circuit. Such devices are common in charging, ignition, and headlamp circuits that handle large amounts of power.
Autohex II Reviews
Find out Autohex II user's impressions about using this tool for BMW advanced services
AutoHex II
AutoHex II is your best choice to have full access to dealer functions like coding, adjusting and modules flashing/programming, Contact us for prices