Title:
過熱検出回路、過熱保護回路、及び半導体装置
Document Type and Number:
Japanese Patent JP6542103
Kind Code:
B2
Abstract:
Provided is an overheat detection circuit capable of easily adjusting a detection temperature of the overheat detection circuit. The overheat detection circuit includes: a first resistor; a second resistor, which has the same temperature characteristics with the first resistor, and has an adjustable resistance value; and a heat sensitive element connected to one end of the second resistor, in which a first current, which is based on a first voltage, is supplied to the first resistor, a current, which is proportional to the first current, is supplied to the second resistor so that a second voltage is generated at another end of the second resistor, and when the first voltage and the second voltage are compared, a result of the comparison is output as an overheat detection signal.
Inventors:
Takao Nakashita
Application Number:
JP2015219614A
Publication Date:
July 10, 2019
Filing Date:
November 09, 2015
Export Citation:
Assignee:
Abric Co., Ltd.
International Classes:
H02H5/04; H01L21/822; H01L27/04
Domestic Patent References:
| JP2007318028A | ||||
| JP201124405A | ||||
| JP2008216234A | ||||
| JP2007312529A | ||||
| JP2005347377A | ||||
| JP59016024A | ||||
| JP59022110A |
Foreign References:
| US20080080119 | ||||
| US20100321845 | ||||
| US20050264971 | ||||
| US4549074 | ||||
| US20130088832 |