Patent ID: 11892862
Assignee: MICRON TECHNOLOGY, INC.
Field: Control (Instruments)
Classification: CPC G  H | IPC G  H

Claim 9:
10. An apparatus comprising:
a first reference voltage generator configured to generate a first voltage;
a second reference voltage generator configured to generate a second voltage;
a detection circuit configured to compare the first voltage with the second voltage to generate a selection signal; and
a selection circuit configured to select the first voltage when the selection signal is in a first state and select the second voltage when the selection signal is in a second state,
wherein at least one of the first and second voltages has a temperature dependency,
wherein the detection circuit is configured to change the selection signal from the first state to the second state at a first temperature when increasing temperature and change the selection signal from the second state to the first state at a second temperature lower than the first temperature when decreasing temperature,
wherein the detection circuit includes a current mirror circuit having an input current path flowing an input current controlled by one of the first and second voltages and an output current path flowing an output current controlled by other of the first and second voltages,
wherein the current mirror circuit further includes a first additional current path coupled in parallel with one of the input current path and the output current path, and
wherein the first additional current path is configured to be enabled responsive to the selection signal.