Samsung Electronics Co., Ltd.

Hyunmyoung Kim

Kwangho Kim

Cheolhwan Lim

Haejung Choi

Junhee Shin

Sangho Kim

Joowon Park

Tae-Hwang Kong

Sungmin Yoo

Jaeseung Lee

An electronic device includes circuitry configured to output a first output signal shifting to a logic high level at a first time in response to a supply voltage reaching a first voltage level, output a second output signal shifting to a logic high level at a second time occurring after the first time in response to the supply voltage reaches a second level higher than the first level; and the circuitry includes an AND gate circuit configured to output a reset signal based on the first output signal and the second output signal.

Supply voltage detecting circuit, method of operating the same, electronic device comprising the same and electronic system comprising the same

A power manager circuit is provided. The power manager circuit includes a bandgap reference circuit, first and second monitoring circuits, and a reference buffer. The bandgap reference circuit generates a first voltage, based on an external voltage that is external to the power manager circuit. The first monitoring circuit determines a logical value of a first alarm signal, based on whether a first voltage level of the first voltage is within a first range. The reference buffer generates a second voltage, based on the first voltage. The second monitoring circuit determines a logical value of a second alarm signal, based on whether a second voltage level of the second voltage is within a second range.

Power manager circuit and electronic device for detecting internal errors

Growing community of inventors

Hwaseong-si, South Korea

Hyunmyoung Kim