Column: Optical isolation


Figure 2: The module’s connections output, and 0.00V ≤ VIN 2VIN ≤ 5.00V.


When 0.00V ≤ VIN ≤ 5.00V, VOUT . VIN


= 0-5.00V, so VOUT = = 0-10V;


see Figure 3. Table 1 shows some voltage examples


for the module, with its PCB shown in Figure 4. To calibrate the circuit, with S1 open, to +5.00V, and then by adjusting P1 = +5.00V.


set VIN make VOUT 1. Setting VIN 2. Setting VIN


Calibration steps with S1 consist of: to +5.00V and by adjusting = +5.00V.


P1 ensure that VTP1 P2 ensure that VOUT


to +5.00V and by adjusting = +10.00V.


Figure 3: VOUT


vs. VIN


for the module


Table 1: Voltage examples for the module, assuming 0.00V ≤ VIN


≤ 5.00V


Figure 4: The module’s prototype PCB www.electronicsworld.co.uk November 2022 13


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44