초록 ▼

A multipurpose current source for generating a current with linear positive temperature dependence at a predetermined slope. This multipurpose current source includes a proportional to absolute temperature (PTAT) current source, a constant current generation circuit coupled to the PTAT current sourc

A multipurpose current source for generating a current with linear positive temperature dependence at a predetermined slope. This multipurpose current source includes a proportional to absolute temperature (PTAT) current source, a constant current generation circuit coupled to the PTAT current source circuit and a circuit coupled to the PTAT current source circuit and the constant current generation circuit by which a temperature dependent current developed by the PTAT current source and a constant current independent of temperature developed by the constant current generation circuit are combined The linear positive temperature dependent current is generated by subtracting to develop a temperature dependent current by reducing the temperature dependent current developed by the PTAT current source by the constant current independent of temperature developed by the constant current generation circuit.

대표청구항 ▼

1. An apparatus for generating a current linearly dependent on temperature comprising:a proportional to absolute temperature current source for generating a proportional to absolute temperature current; a constant current generation circuit responsive to said proportional to absolute temperature cur

1. An apparatus for generating a current linearly dependent on temperature comprising:a proportional to absolute temperature current source for generating a proportional to absolute temperature current; a constant current generation circuit responsive to said proportional to absolute temperature current for generating a constant current independent of temperature; and current combining means coupled to said proportional to absolute temperature current source and said constant current generation circuit for combining said proportional to absolute temperature current and said constant current independent of temperature to generate a linearly temperature dependant current with a predetermined slope by one of: (a) reducing said proportional to absolute temperature current by said constant current independent of temperature, and (b) increasing said proportional to absolute temperature current by said constant current independent of temperature.