Saturday, September 26, 2015

DC Motor Speed Sensor Circuit Diagram using OS25B10 and LM393

Robotronicdiagram. - Here is circuit diagram of DC Motor Speed Sensor using OS25B10 and LM393 like in Figure 1 below. The main component in this circuit diagram is sensor OS25B10 and also LM393 IC and several components. In here we will show you also the component part ans simple description of this circuit diagram. 

Circuit Diagram 

Component Part
  1. R1 = 180
  2. R2,R3,R4,R6 = 10K
  3. R5,R7 = 1K
  4. D1, D2 = LED
  5. C1,C2 = 100nF
  6. OC1 = OS25B10
  7. IC1 = LM393

Circuit diagram like in figure 1 above is DC Motor Speed Sensor Circuit Diagram using OS25B10 and LM393. According Electroschematics site describe that as stated, the circuity can be used to send calibrated pulses to a microcontroller-based tacho meter or similar circuit/device. The wiring of the hardware turned out to be deceptively simple. At the heart of the circuit is the OS25B10 transmissive optical sensor with phototransistor output (OC1).

Next is the venerable LM393 dual comparator chip (IC1) configured as a simple Schmitt trigger (schmitt triggers are fundamental circuits with several uses; one is signal processing, they can pull digital data out of some extremely noisy environments). The green indicator (LED1) indicates the presence of voltage applied, and the red indicator (LED2) monitors output of the motor speed sensor module. Recommended working voltage of the module is 4.5 to 5.5 volt dc.

Note that a 180R resistor (R1) is used here to limit operating current of the light emitting diode inside OS25B10 optical sensor (OC1). It might become necessary to alter this value in your prototype. Similarly, try to tweak the value of the 10K resistor (R2) to get a decent voltage swing based on your real life application. The last 10K resistor (R7) is an optional pull-up resistor.

Please read more this article from original circuit about DC Motor Speed Sensor Circuit Diagram using OS25B10 and LM393 using link Here.

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