APPARATUS FOR DRIVING INERTIAL SENSOR AND CONTROLLING METHOD OF THE SAME
First Claim
1. An apparatus for driving an inertial sensor, the apparatus comprising:
- an inertial sensor including at least one driving mass;
an analog circuit unit detecting an amplitude value and a phase value of a driving mass resonance from a driving displacement signal of the inertial sensor;
a first signal converting unit converting the amplitude value and the phase value into a digital value;
a digital automatic gain control unit selectively executing an operation of a control gain for an amplitude or phase of the driving mass resonance so that any one of the amplitude value or the phase value received from the first signal converting unit first converges on a preset target value; and
a second signal converting unit converting the control gain into an analog value and transmitting the analog value to the analog circuit unit.
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Accused Products
Abstract
Disclosed herein is an apparatus for driving an inertial sensor, the apparatus including: at least one inertial sensor including a driving mass; an analog circuit unit detecting an amplitude value and a phase value of a driving mass resonance from a driving displacement signal of the inertial sensor; a first signal converting unit converting the amplitude value and the phase value into a digital value; a digital automatic gain control unit generating a control gain for controlling an amplitude or phase of the driving mass resonance so that the digitalized amplitude value or the phase value converges on a preset target value; and a second signal converting unit converting the control gain into an analog value and transmitting the analog value to the analog circuit unit, wherein the analog circuit unit applies a driving signal having the control gain reflected thereto to the inertial sensor.
20 Citations
24 Claims
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1. An apparatus for driving an inertial sensor, the apparatus comprising:
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an inertial sensor including at least one driving mass; an analog circuit unit detecting an amplitude value and a phase value of a driving mass resonance from a driving displacement signal of the inertial sensor; a first signal converting unit converting the amplitude value and the phase value into a digital value; a digital automatic gain control unit selectively executing an operation of a control gain for an amplitude or phase of the driving mass resonance so that any one of the amplitude value or the phase value received from the first signal converting unit first converges on a preset target value; and a second signal converting unit converting the control gain into an analog value and transmitting the analog value to the analog circuit unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A controlling method of an apparatus for driving an inertial sensor, the method comprising:
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detecting, by an analog circuit unit, an amplitude value and a phase value of a driving mass resonance from a driving displacement signal of an inertial sensor; converting, by a first signal converting unit, the amplitude value or the phase value into a digital value; selectively executing, by a digital automatic gain control unit, an operation of a control gain for an amplitude or phase of the driving mass resonance so that any one of the amplitude value or the phase value received from the first signal converting unit first converges on a preset target value; and converting, by a second signal converting unit, the control gain into an analog value to thereby transmit the analog value to the analog circuit unit. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification