High-speed LED optical communication bridge-type modulator
A technology of optical communication bridges and modulators, applied in electromagnetic wave transmission systems, electrical components, transmission systems, etc., can solve the problems of low carrier recombination rate, long carrier annihilation time, poor optical communication effect, etc., and achieve Simple structure, good effect, reduce the effect of band bending
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Embodiment 1
[0034] see figure 1 , the high-speed LED optical communication bridge modulator includes a power supply unit, LED, switch K101, switch K102, switch K103, switch K104 and a control unit; the power supply unit includes a voltage limiting constant current control unit; the control unit is used for Generate and output the control signal of the switch and realize the timing control; the timing control controls the reverse power supply time by monitoring the reverse current of the LED; the voltage limiting constant current control unit, the switch K101, the LED and the switch K102 are sequentially connected in series to form a loop The end of the switch K102 away from the cathode of the LED is grounded; one end of the switch K104 is connected to the anode of the LED, and the other end is grounded; one end of the switch K103 is connected to the cathode of the LED, and the other end is connected to the positive pole of the voltage limiting constant current control unit;
[0035] When...
Embodiment 2
[0038] see figure 2 , the high-speed LED optical communication bridge modulator of the present invention includes a power supply unit, LED, switch K101, switch K102, switch K103, switch K104, switch K105 and a control unit; the power supply unit includes a voltage limiting and constant current control unit; The control unit is used to generate and output the control signal of the switch and realize the timing control; the timing control controls the reverse power supply time by monitoring the reverse current of the LED; the voltage limiting constant current control unit, the switch K101, the LED and the switch K102 A loop is formed in series in sequence; the end of the switch K102 away from the LED cathode is grounded; one end of the switch K104 is connected to the LED anode, and the other end is grounded; one end of the switch K103 is connected to the LED cathode, and the other end is connected to the positive pole of the voltage limiting constant current control unit; the sw...
Embodiment 3
[0042] see image 3 , the high-speed LED optical communication bridge modulator includes a power supply unit, LED, switch K101, switch K102, switch K103, switch K104 and a control unit; the power supply unit includes a voltage limiting constant current control unit and a constant voltage control unit; The control unit is used to generate and output the control signal of the switch and realize the sequence control; the control of the sequence controls the reverse power supply time by monitoring the reverse current of the LED; the voltage limiting constant current control unit, the switch K101, the LED and the switch K102 is connected in series in turn to form a loop; the end of the switch K102 away from the LED cathode is grounded; one end of the switch K104 is connected to the LED anode, and the other end is grounded; one end of the switch K103 is connected to the LED cathode, and the other end is connected to the positive pole of the constant voltage control unit. The negativ...
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