Patent ID: 7363806
Filing Date: 2008-04-29
Classification: B60C

Abstract:
1. A tire parameter sensor assembly for monitoring a parameter of a vehicle tire, said assembly comprising: a substrate; a power system carried by said substrate for converting an unregulated input voltage to a regulated output voltage, said power system having an input terminal, an output terminal, a voltage multiplier circuit having said power system input terminal and an output, a voltage regulator having an input coupled to said output of said voltage multiplier circuit and an output, and a storage capacitor coupled to said output of said voltage regulator; a tire parameter sensor carried by said substrate for providing monitoring signals representative of the value of said parameter; a processor/transmitter unit carried by said substrate and coupled to said sensor for converting said monitoring signals to transmission signals, said processor/transmitter unit having a power input terminal coupled to said output terminal of said power system; and a power coil carried by said substrate and coupled to said input terminal of said power system, whereby said power coil develops said unregulated input voltage whenever a magnetic field is encountered by said coil and said power system produces said regulated output voltage to render said processor/transmitter operable.