| 摘要 |
FIELD: security systems. ^ SUBSTANCE: faults which can occur in the proposed electrical circuit are shorting between neighbouring input pins of the multiplexer (MP), as well as faults in the functioning of the analogue-to-digital converter (ADC), in which one bit of digital signal gets stuck on either a high level or low level. Circuit (200) comprises a multiplexer (MP) (204), analogue-to-digital converter (ADC) (208) and a processor (216), which compares the sequence (DM) of digital output signals from the analogue-to-digital converter (ADC) (208) with the sequence (217) of normal ranges, which correspond to digital output signals, for transmission of the output error signal (219), when one of the digital output signals goes beyond the limits of its normal range. ^ EFFECT: increased efficiency. ^ 25 cl, 12 dwg |
