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The simplest multi-oscillator circuit of photoelectric coupl

2016-08-10 18:31  
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The simplest multi-oscillator circuit of photoelectric couplers
The simplest multi-oscillator circuit of photoelectric couplers
In the figure is simplest multi-oscillator circuit of photoelectric couplers. When the power is on, as the voltages on the two terminals of capacitor C can mutate and the resistance of resistor R is higher than RL, so the power supply voltage is mainly imposed on R, and the LEV on F is low, the LED is blocked, as the charging voltage of the capacitor increases, the LEV of F is rising. when the LEV rises to a certain value, the LED is conducting and glowing, the light dependent pipe is conducting, the output voltage is jumping and close to the voltage of the power supply.