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1.
公开(公告)号:US08432214B2
公开(公告)日:2013-04-30
申请号:US13052891
申请日:2011-03-21
IPC分类号: H01L35/00
CPC分类号: G01K7/01
摘要: A programmable temperature sensing circuit includes a comparator, first and second CTAT sensing elements, first and second PTAT reference circuits, and a selection circuit. When a selection signal is a first logic state, an output terminal of the first PTAT reference circuit is coupled to the second CTAT temperature sensing element for providing a first threshold voltage to the second input of the comparator. When the selection signal is a second logic state different from the first logic state, a series-connection of the first PTAT reference circuit and the second PTAT reference circuit are coupled to the second CTAT temperature sensing element for providing a second threshold voltage to the second input of the comparator. The comparator provides an output voltage indication when a voltage provided by the first CTAT sensing element compares favorably with the selected one of the first or second threshold voltages.
摘要翻译: 可编程温度感测电路包括比较器,第一和第二CTAT感测元件,第一和第二PTAT参考电路以及选择电路。 当选择信号是第一逻辑状态时,第一PTAT参考电路的输出端耦合到第二CTAT温度感测元件,用于向比较器的第二输入提供第一阈值电压。 当选择信号是与第一逻辑状态不同的第二逻辑状态时,第一PTAT参考电路和第二PTAT参考电路的串联连接耦合到第二CTAT温度感测元件,以向第二逻辑状态提供第二阈值电压 输入比较器。 当由第一CTAT感测元件提供的电压与所选择的第一或第二阈值电压中的一个相比较时,比较器提供输出电压指示。
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2.
公开(公告)号:US20120242398A1
公开(公告)日:2012-09-27
申请号:US13052891
申请日:2011-03-21
IPC分类号: H03K3/011
CPC分类号: G01K7/01
摘要: A programmable temperature sensing circuit includes a comparator, first and second CTAT sensing elements, first and second PTAT reference circuits, and a selection circuit. When a selection signal is a first logic state, an output terminal of the first PTAT reference circuit is coupled to the second CTAT temperature sensing element for providing a first threshold voltage to the second input of the comparator. When the selection signal is a second logic state different from the first logic state, a series-connection of the first PTAT reference circuit and the second PTAT reference circuit are coupled to the second CTAT temperature sensing element for providing a second threshold voltage to the second input of the comparator. The comparator provides an output voltage indication when a voltage provided by the first CTAT sensing element compares favorably with the selected one of the first or second threshold voltages.
摘要翻译: 可编程温度感测电路包括比较器,第一和第二CTAT感测元件,第一和第二PTAT参考电路以及选择电路。 当选择信号是第一逻辑状态时,第一PTAT参考电路的输出端耦合到第二CTAT温度感测元件,用于向比较器的第二输入提供第一阈值电压。 当选择信号是与第一逻辑状态不同的第二逻辑状态时,第一PTAT参考电路和第二PTAT参考电路的串联连接耦合到第二CTAT温度感测元件,以向第二逻辑状态提供第二阈值电压 输入比较器。 当由第一CTAT感测元件提供的电压与所选择的第一或第二阈值电压中的一个相比较时,比较器提供输出电压指示。
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