Patent ID: 9671471
Date: 2017-06-06
CPC Classifications: G01R,H01L

Claim:
1. A magnetic-field sensor, comprising: a die; a current generator in the die and configured to generate a driving current; a first Lorentz force transducer in the die coupled to the current generator and having a first resonance frequency, the current generator being configured to generate the driving current with a non-zero frequency different from the first resonance frequency; and a second Lorentz force transducer in the die and having a second resonance frequency, the first and second Lorentz force transducers being sensitive to components of a magnetic field oriented in a first direction and a second direction, respectively, the second direction being different than the first direction and the first and second Lorentz force transducers being coupled in series and the current generator being coupled in series with the first and second Lorentz force transducers, the non-zero frequency of the driving current also being different from the second resonance frequency.