Back to results
US 11,720,127 B2Granted
Amplifier and voltage generation circuit including the same
AssigneeSK hynix Inc.
InventorSuk Hwan Choi
Life of this patent
Estimating the term…
Abstract
A voltage generation circuit includes an amplifier configured to detect a difference between a reference voltage and a feedback voltage according to a control signal and a bias current, and configured to generate a driving signal. The voltage generation circuit also includes a driver configured to generate an internal voltage by driving an external voltage according to the driving signal. The amount of the bias current may be forcibly adjusted by the control signal.
Claims26
An amplifier comprising:
- a first stage configured to receive a bias voltage and a control signal independent of the bias voltage, configured to detect and output a difference between a reference voltage and a feedback voltage according to the control signal and a bias current,
- wherein the control signal is increased from a first level until an external voltage becomes equal to or more than a set level and the control signal transits to a second level when the external voltage becomes equal to or more than the set level, and
- wherein an amount of the bias current is maintained according to the bias voltage until the control signal has the second level, and the amount of the bias current is forcibly increased when the control signal has the second level.
A voltage generation circuit comprising:
- an amplifier configured to be input a bias voltage and a control signal independent of the bias voltage, configured to detect a difference between a reference voltage and a feedback voltage according to the control signal and a bias current, and configured to generate a driving signal;
- and
- a driver configured to generate an internal voltage by driving an external voltage according to the driving signal,
- wherein the control signal is increased from a first level until the external voltage becomes equal to or more than a set level and the control signal transits to a second level when the external voltage becomes equal to or more than the set level, and
- wherein an amount of the bias current is maintained according to the bias voltage until the control signal has the second level, and the amount of the bias current is forcibly increased when the control signal has the second level.
2 more elements
A voltage generation circuit comprising:
- a first transistor array to which an external voltage is applied in common and having a gate terminal to which a bias voltage is applied in common;
- a second transistor array electrically connected to the first transistor array and having a gate terminal to which a control signal is inputted in common;
- a third transistor electrically connected to the first transistor array and the second transistor array and configured to receive a reference voltage;
- a fourth transistor electrically connected between the third transistor and a ground voltage terminal;
- a fifth transistor electrically connected to the first transistor array and the second transistor array and configured to receive a feedback voltage;
- a sixth transistor electrically connected between the fifth transistor and a ground voltage terminal and configured to generate a driving signal;
- a driver configured to generate an internal voltage by driving the external voltage according to the driving signal;
- and
- a distribution resistor configured to generate the feedback voltage by distributing the internal voltage,
- wherein an amount of a bias current flowing through the first transistor array and the second transistor array according to a bias voltage is forcibly adjusted according to the control signal.
7 more elements
Dependencies are inferred from the claim text.