Patent ID: 11914170
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G  H

Claim 10:
11. An apparatus for providing a bias current to a hall sensor, comprising:
a bias provider configured to provide the bias current to the hall sensor; and
a processor configured to produce a bias current control value based on a node voltage between the hall sensor and the bias provider,
wherein the bias provider is configured to vary the bias current to the hall sensor based on the bias current control value,
wherein the bias provider comprises:
a first transistor configured to produce a first bias current; and
a second transistor configured to produce a second bias current,
wherein the first and second bias currents are provided together to the hall sensor, and
wherein the second transistor is configured to be input, from a voltage source, with a voltage varying based on the bias current control value and produce the second bias current based on the varying voltage.