# US 2013/0154527 A1 · Hall sensor signal generating device

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- Number: US 2013/0154527 A1
- Document ID: US20130154527A1
- Status: Published application
- Kind: A1
- Application number: 13/586,699
- Filed: 2012-08-15
- Published: 2013-06-20
- Earliest claimed: 2011-12-15
- Assignees: Electronics and Telecommunications Research Institute
- Inventors: Jung Hee SUK; Yil Suk Yang; Tae Moon Roh
- Web page: https://patentgrep.com/patent/US20130154527A1

## CPC

- G01D 5/145: {influenced by the relative movement between the Hall device and magnetic fields (see G01R33/06)}
- H02P 6/17: and for generating speed information
- G01D: MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- H02P: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS

## 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.

## Claims

### Claim 1

A hall sensor signal generating device comprising:
a rotor which has a magnetic property and rotates on the basis of a rotary axis;
a hall sensor unit which is disposed on 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.

### Claim 2 (depends on 1)

The hall sensor signal generating device of claim 1, wherein the hall sensor signal generating device is included in a Brushless Direct Current (BLDC) motor.

### Claim 3 (depends on 1)

The hall sensor signal generating device of claim 1, wherein the hall sensor signal generating device is included in a Synchronous Reluctance Motor (SynRM).

### Claim 4 (depends on 1)

The hall sensor signal generating device of claim 1, wherein the hall sensor unit includes a plurality of hall sensors that are disposed with the same interval.

### Claim 5 (depends on 4)

The hall sensor signal generating device of claim 4, wherein the plurality of hall sensors includes three hall sensors that are disposed with an interval of 120 degrees.

### Claim 6 (depends on 1)

The hall sensor signal generating device of claim 1, further comprising:
a clock generating unit which generates an internal driving clock; and
a clock controlling unit which receives an external driving clock and a control signal from an external device, selects one of the external driving clock and the internal driving clock according to the control signal, and provides the selected driving clock to the clock synchronization unit.

### Claim 7 (depends on 6)

The hall sensor signal generating device of claim 6, wherein a frequency of the internal driving clock is variable.

### Claim 8 (depends on 6)

The hall sensor signal generating device of claim 6, wherein the clock controlling unit further includes a multiplier for multiplying a frequency of the selected driving clock.