Patents by Inventor Changsik Im

Changsik Im has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Base current-control circuit of an output transistor
    Patent number: 5486781
    Abstract: A base current-control circuit comprises a detector for detecting a load current of the output transistor and for enabling the circuit to generate a detected current proportional to the load current. A base current-control voltage generator generates a voltage as a function of the detected current, and a switch generates ON/OFF signals. A base current generator utilizes the voltage to generate a base current in response to the ON/OFF signals generated by the switch to drive the output transistor.
    Type: Grant
    Filed: January 27, 1994
    Date of Patent: January 23, 1996
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Changsik Im