Patent ID: 8085031

Claim:
A device for powering and synchronously clocking measuring sensors, the device comprising: at least one isolation transformer comprising at least one primary side and a plurality of secondary sides; a switched mode power supply configured to output a plurality of signals and to transmit the output signals to a corresponding one of the measuring sensors, via the at least one primary side of the at least one isolation transformer and a respective one of the secondary sides to power the measuring sensors in accordance with the corresponding one of the output signals; and an oscillation circuit arrangement configured to transmit clock signals to the switched mode power supply, wherein the switched mode power supply, in accordance with the clock signals output from the oscillation circuit arrangement, is configured to transmit each of the output signals at the same clock frequency to the at least one primary side of the at least one isolation transformer, the frequency being within the working range of the at least one transformer, to control a respective sampling frequency of the measuring sensors based on the frequency of a corresponding one of the output signals and synchronize the sampling frequencies of the measuring sensors.