Patent ID: 9061278
Filing Date: 2015-06-23
Classification: B01L,C12Q,H05B,Y10T

Abstract:
1. A method for individually controlling a plurality of resistive thermal detectors (RTDs) of a microfluidic device of a microfluidic system, wherein the RTDs are each adjacent to a portion of an associated one of the plurality of microchannels, the method comprising: generating heater control signals having alternating polarities to drive the plurality of RTDs; supplying the heater control signals to the plurality of RTDs so that adjacent RTDs of the plurality of RTDs are driven with heater control signals having opposite polarities relative to each other; minimizing current in first and second common electrodes by connecting the first and second common electrodes to a virtual ground circuit, wherein the first and second common electrodes are each connected to each RTD of the plurality of RTDs; sensing a temperature of each of the plurality of RTDs by using the first and second common electrodes; and updating the heater control signals using the sensed temperatures of the plurality of RTDs.