Hall sensor signal generating device
First Claim
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1. A Hall sensor signal generating device comprising:
- a rotor which has a magnetic property and is configured to rotate on a rotary axis;
a Hall sensor unit which is disposed on a stator and outside the rotor and configured to output a Hall sensor signal;
a clock generating unit disposed within the Hall sensor signal generating device and configured to generate an internal driving clock signal;
a clock controlling unit configured to receive the internal driving clock signal, an external driving clock signal, and a control signal, the external driving clock signal and the control signal generated from an external device located outside the Hall sensor signal generating device, to select either the external driving clock signal or the internal driving clock signal as a selected driving clock signal according to the control signal, and to provide the selected driving clock signal to a clock synchronization unit;
and the clock synchronization unit configured to receive the selected driving clock signal and the Hall sensor signal, to perform synchronization between the selected driving clock signal and the Hall sensor signal, and to output a synchronized driving clock signal and a synchronized Hall sensor signal and,wherein a rising edge of the synchronized driving clock signal corresponds to a rising edge of the synchronized Hall sensor signal or a falling edge of the synchronized Hall sensor signal.
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Abstract
Disclosed is a hall sensor signal generating device which includes a rotor which has a magnetic property and rotates on the basis of a rotary axis; a hall sensor unit which is disposed to be spaced apart from a stator disposed outside the rotor; and a clock synchronization unit which receives a driving clock, performs synchronization between the driving clock and a hall sensor signal output from the hall sensor unit, and outputs the synchronized driving clock and the synchronized hall sensor signal.
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Citations
7 Claims
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1. A Hall sensor signal generating device comprising:
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a rotor which has a magnetic property and is configured to rotate on a rotary axis; a Hall sensor unit which is disposed on a stator and outside the rotor and configured to output a Hall sensor signal; a clock generating unit disposed within the Hall sensor signal generating device and configured to generate an internal driving clock signal;
a clock controlling unit configured to receive the internal driving clock signal, an external driving clock signal, and a control signal, the external driving clock signal and the control signal generated from an external device located outside the Hall sensor signal generating device, to select either the external driving clock signal or the internal driving clock signal as a selected driving clock signal according to the control signal, and to provide the selected driving clock signal to a clock synchronization unit;and the clock synchronization unit configured to receive the selected driving clock signal and the Hall sensor signal, to perform synchronization between the selected driving clock signal and the Hall sensor signal, and to output a synchronized driving clock signal and a synchronized Hall sensor signal and, wherein a rising edge of the synchronized driving clock signal corresponds to a rising edge of the synchronized Hall sensor signal or a falling edge of the synchronized Hall sensor signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification