Publication

Modelling and simulation of a high accuracy magnetometer

Philippe Renaud
1998
Conference Papers

Abstract

An entire microsystem for high accuracy magnetic field measurement based on vertical Hall devices has been simulated. In accordance with existing knowledge about semiconductor physics and experimental results, a functional SPICE- model for a vertical Hall device has been developed. This model was then applied to simulate an existing high accuracy magnetometer, including temperature and non-linearity compensation. The comparison of simulated and measured results shows that the real physical effects as well as the behaviour of the signal treatment electronics have been correctly implemented.

Official source

https://infoscience.epfl.ch/entities/publication/5a3dc90f-0c3c-40ce-b1fe-f025a5b7a113

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Philippe Renaud
1998
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/5a3dc90f-0c3c-40ce-b1fe-f025a5b7a113

About this result

Related concepts (31)

Power semiconductor device

A power semiconductor device is a semiconductor device used as a switch or rectifier in power electronics (for example in a switch-mode power supply). Such a device is also called a power device or, when used in an integrated circuit, a power IC. A power semiconductor device is usually used in "commutation mode" (i.e., it is either on or off), and therefore has a design optimized for such usage; it should usually not be used in linear operation. Linear power circuits are widespread as voltage regulators, audio amplifiers, and radio frequency amplifiers.

Semiconductor

A semiconductor is a material which has an electrical conductivity value falling between that of a conductor, such as copper, and an insulator, such as glass. Its resistivity falls as its temperature rises; metals behave in the opposite way. Its conducting properties may be altered in useful ways by introducing impurities ("doping") into the crystal structure. When two differently doped regions exist in the same crystal, a semiconductor junction is created.

Semiconductor device

A semiconductor device is an electronic component that relies on the electronic properties of a semiconductor material (primarily silicon, germanium, and gallium arsenide, as well as organic semiconductors) for its function. Its conductivity lies between conductors and insulators. Semiconductor devices have replaced vacuum tubes in most applications. They conduct electric current in the solid state, rather than as free electrons across a vacuum (typically liberated by thermionic emission) or as free electrons and ions through an ionized gas.