Analogue output moduleof a 0-5V to 0-10V signal converter

摘要

This series of columns is dedicated to a project covering thirteen analogue input modules and seven analogue output modules for 5V microcontrollers' ADC and DAC channels. Figure 1 shows the analogue output module for a 0-5V to 0-10V signal converter, with Figure 2 showing its connections to the microcontroller. We've assumed V_(IN) is taken from the MCU's DAC output. When 0.00V ≤ V_(IN) ≤ 5.00V, V_(OUT) = 2V_(IN). Input voltage range V_(IN) is 0-5V and, therefore, the output voltage range V_(OUT) is 0-10V; see their relationship in Figure 3.Jumper S1 (shown as a switch) is used to select the operation mode; open for the 0-5V analogue output mode, and closed for the 0-5V to 0-10V mode. When S1 is open, the circuit works as explained in the previous issue's section, "0-5V analogue output module". Therefore, we'll only consider the 0-5V to 0-10V signal converter analogue output operation mode, i.e. with S1 closed.