Application Circuit for Photoelectric Encoder！

EPC-755A photoelectric encoder with good performance, in the angle measurement encoder, displacement measurement encoder, anti-interference ability is very strong, and has a stable and reliable output pulse signal, and the pulse signal can be measured after the digital signal can be measured. Therefore, we in the development of car driving simulator, the steering wheel rotation angle measurement using EPC-755A photoelectric encoder as a sensor, the output circuit selection open collector type, the output resolution of 360 pulses / circle, taking into account the car steering wheel Rotation is bi-directional, both clockwise rotation, but also counterclockwise rotation, the need for the encoder output signal phase to count. Figure 2 shows the actual use of photoelectric encoder phase and two-way counting circuit, phase detection circuit with a D flip-flop and two NAND gate, counting circuit with three 74LS193 composition

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