E-book-15-ElektorBlockbusters-uk

15 лучших проектов из журнала Elertor Elektuur.Описание и принципиальные схемы на английском языке.

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The other functions (F4, F5 and F6) assist the instrumentation amplifier in order to ensure its proper operation. In fact, the operational amplifiers have a supply voltage of between 0 V and 5 V. 5 V. Setting this level is not a problem in most cases: a divider bridge with two resistors is appropriate (R23 and R24).

5 V or more. The optoisolators are used to provide an isolation layer from input voltages. This means that relatively high voltages can be used to safely control the ECIO module. The signals you want to process in the ECIO PLC are applied to the circuit through PCB mounted 2-way screw terminal blocks. LEDs D1-D4 show the logic status of the opto-isolator inputs. ECIO PLC • 37 65 PROGRAMMABLE LOGIC CONTROL B1 K5 IC2 14 13 D5 R7 D1 K1 Re3 D12 D10 Re2 D9 D7 Re4 D13 D11 R4 T7 R3 D6 T6 R1 R9 K11 Re1 D8 R10 T5 K10 C1 C6 K7 C3 C5 2 1 K6 T1 K8 PROJECTS D2 K2 T2 IC1 D3 K3 D4 T8 R2 T3 P1 T4 K4 R11 R6 C2 JP1 X1 C4 IC3 K9 IC4 R5 Figure 2.

By analysing the electrical activity. ) GBECG • 48 33 HANDS-ON ELECTROCARDIOGRAPH memory and reread to show the ECG in real time on the screen, in ‘scrolling’ mode. R ECG The analogue part T P Q Presenting an adequate signal to the input of the digital analogue converter presents a challenge to the electronics engineer because there are a number of technical problems to analyse and resolve. S auricular contraction Differential amplifier The peak-to-peak amplitude of the signals sampled between the electrodes is very low at just 2 mV max.

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