Patent ID: 11955090
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 16:
17. A method of controlling a buffer circuit, the method comprising:
comparing a difference between an input voltage level and an output voltage level of an operational amplifier with a reference voltage level in a slew-rate compensating circuit including a boosting transistor;
generating a compensation current based on the difference between the input voltage level and the output voltage level in the slew-rate compensating circuit and providing the compensation current to the operational amplifier through the boosting transistor, in response to the difference between the input voltage level and the output voltage level being greater than the reference voltage level; and
turning off a boosting transistor of the slew-rate compensating circuit by providing a blocking current, which is provided from an offset blocking circuit to the slew-rate compensating circuit, to a gate of the boosting transistor, in response to the difference between the input voltage level and the output voltage level being less than the reference voltage level.