Circuit for transmitting width-adjustable pulse signal by using optical fiber
A pulse signal, optical fiber transmission technology, applied in the field of signal transmission, can solve the problems of poor cable transmission control signal effect, etc., to achieve real-time control and monitoring, simple operation, reduce budget effects
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Embodiment 1
[0025] see figure 1 , a circuit for transmitting pulse signals with adjustable width using optical fibers, including a transmitting module and a receiving module, the transmitting module is internally provided with a first-level comparator Q1 and a fourth-level comparator Q4, and the first-level comparator Q1 is connected to and controlled by a transistor-V1 The opening and closing of the switch of the triode-V1, the triode-V1 is connected with the first laser E1 and controls the first laser E1 to emit the laser pulse signal, the four-stage comparator Q4 is connected with the photodetector-e4 and the sampling resistor-r4, and the photodetector- e4 receives the optical pulse signal and generates the corresponding photocurrent, and then converts it into an electrical pulse signal of the same width through the sampling resistor r4. The four-stage comparator Q4 is connected to the transistor 2 V4 and controls the switch of the transistor 2 V4. The internal settings of the receiving...
Embodiment 2
[0027] see figure 1 , a circuit for transmitting pulse signals with adjustable width using optical fibers, including a transmitting module and a receiving module, the transmitting module is internally provided with a first-level comparator Q1 and a fourth-level comparator Q4, and the first-level comparator Q1 is connected to and controlled by a transistor-V1 The opening and closing of the switch of the triode-V1, the triode-V1 is connected with the first laser E1 and controls the first laser E1 to emit laser pulse signals, and the receiving module is equipped with a second-level comparator Q2 and a third-level comparator Q3, and the second-level comparator Q2 Connected with photodetector 2 e2 and sampling resistor 2 r2, photodetector 2 e2 receives the light pulse signal and generates corresponding photocurrent, and then converts it into an electric pulse signal with the same width through sampling resistor 2 r2, the output of the secondary comparator Q2 The terminal is connect...
Embodiment 3
[0029] see Figure 1-2 , the secondary comparator Q2 is connected with the photodetector 2 e2 and the sampling resistor 2 r2, the photodetector 2 e2 receives the light pulse signal and generates a corresponding photocurrent, and then converts it into an electric pulse signal with the same width through the sampling resistor 2 r2, and the 2 The output terminal of the stage comparator Q2 is connected with the triode V2 and controls the switch opening and closing of the triode V2, the triode V2 is connected with the monostable trigger S1, and the monostable trigger S1 is connected with an adjustable resistance R and a capacitor C, The monostable trigger resets the recovery pulse width through the RC charge and discharge delay circuit composed of the peripheral adjustable resistor R and capacitor C, the first-level comparator Q1, the fourth-level comparator Q4, the second-level comparator Q2, and the third-level comparator The comparison pulse signals of the comparator Q3 are resp...
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