METHOD FOR SUPPRESSION OF INTERFERENCE IN ELECTRIC CIRCUITS AND DEVICE WHICH IMPLEMENTS SAID METHOD Russian patent published in 1997 - IPC

FIELD: electric engineering. SUBSTANCE: method for suppression of interference in direct current circuits involves compensation of mix of direct current and noise with opposite-phase signal which is generated by detection of alternating constituent from mix of direct current and noise using serial circuit of capacitor and buffer circuit. Said mix of direct current and noise is inverted using inverter. Noise compensation is achieved by adder. Corresponding device has noise detection unit, which has serial circuit of capacitor 2 and buffer circuit 3, which output is connected to one input of inverting adder 4 which second input is connected to output of inverter 5. Inputs of inverter 5 and capacitor serve as device inputs. EFFECT: increased precision of compensation. 2 cl, 1 dwg