| 摘要 |
FIELD: instrument making. ^ SUBSTANCE: unit of signals reproduction is arranged in the form of the following interconnected components - buffer amplifier of input cascade, width-pulse modulator with parallel rough and fine channels and summator, low frequency filter, buffer amplifier of output cascade and width-pulse modulator of microprocessor connected to channels. Unit of supply is arranged in the form of elements of direct or sign-alternating current, and in front of buffer amplifier of input cascade there is a phase detector installed, at the same time the latter comprises input and output switches. ^ EFFECT: improved accuracy due to low discrecity and high linearity, elimination of mechanical elements. ^ 2 dwg |
