High voltage stabilizing circuit diagram composed of optocouplers

  
Circuit is shown. Normal driving transistor would need a higher breakdown voltage transistor (FIG driving tube 9013). When the output voltage increases, VT55 bias increases, B5
High voltage stabilizing circuit diagram composed of optocouplers - schematic

light emitting diode forward current increases, the voltage between the photodiode decreases, the regulator be biased to reduce junction resistance increases and the output voltage decreases ; on the contrary, the output voltage increases, thereby maintaining a stable output voltage.




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