초록 ▼

The temperature sensor measures temperatures within a defined temperature measuring range. The sensor includes a reference voltage source with an output terminal to which a reference voltage is applied and which is connected to a first input terminal of a comparator. A series circuit of a semiconduc

The temperature sensor measures temperatures within a defined temperature measuring range. The sensor includes a reference voltage source with an output terminal to which a reference voltage is applied and which is connected to a first input terminal of a comparator. A series circuit of a semiconductor component with temperature-independent current characteristic and a reference component is connected between a first and a second supply voltage terminal. A temperature-dependent voltage is applied to a node common to the semiconductor component and the reference component. The temperature-dependent voltage is fed to a second input terminal of the comparator. The supply voltage is adjustable within a defined supply voltage range and, within a voltage range resulting from the supply voltage range of a voltage across the reference component, the reference component has a voltage-dependent current characteristic.

대표청구항 ▼

[ We claim:] [1.]1. A temperature sensor for measuring temperatures within a defined temperature measuring range, comprising:a reference voltage source with an output terminal receiving a reference voltage;a comparing element with a first input terminal connected to said reference voltage source, an

[ We claim:] [1.]1. A temperature sensor for measuring temperatures within a defined temperature measuring range, comprising:a reference voltage source with an output terminal receiving a reference voltage;a comparing element with a first input terminal connected to said reference voltage source, and a second input terminal;first and second supply terminals carrying a supply voltage adjustable within a defined supply voltage range;a series circuit of a measuring element and a reference component connected between said first and second supply terminals, whereby a node common to said measuring element and said reference component receives a temperature-dependent voltage and is connected with said second input terminal of said comparing element; andsaid reference component having a voltage-dependent current characteristic within a voltage range of a voltage across the reference component determined by the defined supply voltage range.