Pressure switch with temperature enable function

摘要

The present invention describes systems and methods of providing a pressure switch with temperature enable function. An exemplary embodiment of the present invention includes a pressure sensor for providing a pressure signal having a first voltage level that is proportional to a pressure applied to the pressure sensor; a temperature sensor for providing a temperature signal having a second voltage level where the second voltage level is proportional to a temperature measured by the pressure sensor; and a control circuit for receiving the pressure signal from the pressure sensor and the temperature signal from the temperature sensor and activating a load when the first voltage level exceeds a threshold voltage level.

主权项

1. A control circuit comprising:
a pressure comparator configured to receive a pressure signal from a pressure sensor and a pressure reference voltage, the pressure comparator further configured to output a pressure output signal responsive to a comparison of the pressure signal and the pressure reference voltage; a temperature comparator configured to receive a temperature signal from a temperature sensor and a temperature reference voltage, the temperature comparator configured to output a temperature output signal responsive to a comparison of the temperature signal and the temperature reference voltage; and a logic circuit in communication with the pressure comparator and the temperature comparator, the logic circuit configured to output an activating signal to a load in communication with the logic circuit responsive to the pressure output signal and the temperature output signal.