Converting digital into analog value

摘要

The analog value is in form of an electric voltage converted by pulse width modulation of the digital value, with following smoothing. After dividing the digital value (DW) into a higher value (DW1) and lower value fraction (DW2), the higher value fraction is converted into a first pulse width modulated, rectangular voltage (u1). The lower value fraction of the digital value is converted into a second pulse width modulated, rectangular voltage (u2). The two rectangular voltages are smoothed and summated under consideration of the value aspects of their basic fractions of the digital value.