TECHNIQUES FOR BETA COMPENSATION IN BIPOLAR JUNCTION TRANSISTOR TEMPERATURE SENSOR
卷宗概要
发明人
Yujie Lu; Michael Keith Mayes; Todd Stuart Kaplan
IPC 分类
CPC 分类
Various techniques to eliminate the error caused by variable β coupled with a series resistance in BJTs are described. Multiple known currents are applied to a terminal of the BJT and a corresponding Vis generated. A resistor R is coupled in series with a base or emitter of the BJT and an analog-to-digital converter (ADC) is used to measure the voltage across the resistor R for each of the known currents. These voltages are used to determine ratios of β change, which are then used to determine a temperature of the BJT.
原文（中文）
Various techniques to eliminate the error caused by variable β coupled with a series resistance in BJTs are described. Multiple known currents are applied to a terminal of the BJT and a corresponding Vis generated. A resistor R is coupled in series with a base or emitter of the BJT and an analog-to-digital converter (ADC) is used to measure the voltage across the resistor R for each of the known currents. These voltages are used to determine ratios of β change, which are then used to determine a temperature of the BJT.