Digital=to=analogue conversion method using microprocessor - inserting additional fine pulses of shorter duration between original coarse pulses in each pulse sequence period

摘要

The digital/analogue conversion method involves representing the received digital values using the pulse ratio of a periodic pulse sequence within a given duration, within which the individual pulses are evenly distributed. Additional pulses are inserted between the latter pulses and have a shorter pulse duration defined by dividing the duration of the longer pulses by the max. number of additional pulses which can be inserted within each duration. Pref. the duration of the line pulses is a whole multiple of the cycle time of the microprocessor used in the digital/analogue conversion. ADVANTAGE - Simple provision of higher resolution accuracy.