Patent ID: 8791603
Filing Date: 2014-07-29
Classification: G01L,G05D,H01H,H03K

Abstract:
1. A method, comprising: in an electronic switch having a sensor, an electronic circuit, a first terminal and a second terminal, receiving, by the electronic circuit, an output of the sensor proportional to a sensed amount; determining, by a comparator of the electronic circuit, that the output of the sensor is less than a threshold voltage; in response to determining, deactivating, by the comparator, a voltage limiting circuit of the electronic circuit to operate the electronic circuit in a first state; operating the electronic circuit in a second state when the output of the sensor is at least the threshold voltage; receiving, across the first terminal and the second terminal, a switch voltage used to provide power for the electronic switch; wherein the electronic switch sets the switch voltage to a first voltage level operative to power the electronic circuit and the sensor when the electronic circuit is operating in the first state; and wherein the electronic switch sets the switch voltage to a second voltage level operative to power the electronic circuit and the sensor when the electronic circuit is operating in the second state.