MICROCONTROLLER METERING CONVERTER WITH CONTROLLED POWER SUPPLY OF RESISTIVE MEASUREMENT CIRCUITS BY METHOD OF WIDTH-PULSE MODULATION Russian patent published in 2015 - IPC G01R27/02 

FIELD: measurement equipment.

SUBSTANCE: invention relates to measurement equipment, in particular, to devices for measurement of active resistance, and may be used in facilities for measurement of non-electric values by resistive sensors. A microcontroller metering converter with controlled power supply of resistive measurement circuits by the method of width-pulse modulation comprises a microcontroller, the first RC-filter, the first, second, third and fourth resistors, besides, the first outlet of the first resistor is connected to the outlet of the first width-pulse modulator of the microcontroller, the second outlets of the first and second resistors are connected to the inlet of the first RC-filter, the outlet of which is connected to the first inlet of the analog comparator of the microcontroller, besides, into the converter the second RC-filter is introduced, the first outlets of the second, third and fourth resistors are connected to the outlets of accordingly the second, third and fourth width-pulse modulators of the microcontroller, the second outlets of the third and fourth resistors are connected to the inlet of the second RC-filter, the outlet of which is connected to the second inlet of the analog comparator of the microcontroller.

EFFECT: increased accuracy of conversion.

2 cl, 1 dwg