Circuit assembly and method for programming a hall sensor having an upstream controller
AssigneeMicronas GmbH
InventorsAdriano De Rosa, Gualtiero Bagnuoli
Life of this patent
Estimating the term…
Abstract
A circuit assembly having a controller in which the Hall sensor or a programmable circuit component integrated therein is programmed by clocking or modulating a Hall sensor power supply voltage. A clocked or modulated controller power supply voltage is applied to the controller in clocked or modulated form; and where the clock or modulated Hall sensor power supply voltage is applied to the Hall sensor by the controller as a function of the clocked or modulated controller power supply voltage.
Claims8
A circuit assembly, comprising:
- a housing;
- a Hall sensor including a Hall sensor power supply voltage terminal for applying a Hall sensor power supply voltage, a Hall sensor output terminal for providing measured values or a measuring voltage, and an integrated programmable circuit component which is programmable by clocking or modulation of the Hall sensor power supply voltage;
- and
- a controller configured upstream of the Hall sensor, which controller includes a controller power supply voltage terminal for applying a controller power supply voltage and an internal output terminal for applying a control signal which is proportional to or equal to the controller power supply voltage,
- wherein the internal output terminal is connected to or connectable to the Hall sensor power supply voltage terminal for applying the control signal from the controller power supply voltage terminal,
- wherein the Hall sensor power supply voltage is clocked or modulated to provide the control signal for programming the circuit component, and
- wherein the Hall sensor and the upstream controller are configured in the housing.
A sensor assembly disposed in a housing and adapted to receive a first control voltage from a sensor control unit configured outside of the housing, comprising:
- a controller power supply terminal configured to receive the first control voltage;
- a sensor controller comprising a signal converter adapted to convert the first control voltage to a second control voltage which is less than the first control voltage;
- an internal output terminal configured to provide the second control voltage;
- a Hall sensor comprising a Hall sensor power supply voltage terminal coupled to the internal output terminal, which Hall sensor power supply voltage terminal is configured to receive the second control signal;
- and
- a Hall sensor output terminal configured to provide at least one of measured values and a measuring voltage to the sensor controller;
- and an integrated programmable circuit component adapted to be programmed by clocking or modulating the first control voltage.
Dependencies are inferred from the claim text.