RESISTOR MULTIPLEXED SWITCH WAKE-UP CIRCUIT

摘要

A sensing circuit configured to activate a controller is disclosed. The circuit comprises a first transistor configured to output an activation signal to the controller and a plurality of switches in connection with a base of the transistor. Each of the switches is connected to an identifying resistor. A first output node and a second output node are in communication with the base of the transistor and each of the switches. The first output node and the second output node are separated across an additional identifying resistor. The first output node and the second output node are configured to output a characteristic voltage corresponding a ratio of each of the identifying resistors in response to an input received by one or more of the plurality of switches.

主权项

1. A sensing circuit configured to activate a controller comprising:
a first transistor configured to output an activation signal to the controller; a plurality of switches in connection with a base of the transistor, each of the switches being connected to an identifying resistor; and a first output node and a second output node in communication with the base of the transistor and each of the switches, the first output node and the second output node are separated across an additional identifying resistor; wherein the first output node and the second output node are configured to output a characteristic voltage corresponding a ratio of each of the identifying resistors in response to an input received by one or more of the plurality of switches.