Administration device control circuit for otolaryngology department
A control circuit, ENT technology, applied in the medical field, can solve the problems of uneven application, time-consuming and labor-intensive, etc.
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Embodiment 1
[0023] A control circuit for an ENT medicine applicator, such as figure 1 As shown, it includes a second reflective photoelectric switch circuit 3, a first reflective photoelectric switch circuit 4, a first potentiometer 5, a second potentiometer 6, a switch control circuit 9, a power supply circuit 10, an OR gate circuit 11, Low-frequency oscillator circuit 13, high-frequency oscillator circuit 14, AND gate circuit 16, audio output circuit 17, loudspeaker 18 and power supply working indicator light 19, described second reflective photoelectric switch circuit 3 output terminals and switch control circuit 9 The input end is connected, the output end of the first reflective photoelectric switch circuit 4 is connected to the input end of the switch control circuit 9, the output end of the first potentiometer 5 is connected to the input end of the switch control circuit 9, and the second potential The output end of the device 6 is connected to the input end of the switch control c...
Embodiment 2
[0026] On the basis of Example 1, such as figure 1 As shown, it also includes a fourth reflective photoelectric switch circuit 1, a third reflective photoelectric switch circuit 2, a third potentiometer 7, a fourth potentiometer 8, a low frequency frequency adjustment potentiometer 12 and a high frequency frequency adjustment potentiometer 15 , the output end of the fourth reflective photoelectric switch circuit 1 is connected to the input end of the switch control circuit 9, the output end of the third reflective photoelectric switch circuit 2 is connected to the input end of the switch control circuit 9, and the third potential The output terminal of the device 7 is connected to the input terminal of the switch control circuit 9, the output terminal of the fourth potentiometer 8 is connected to the input terminal of the switch control circuit 9, and the output terminal of the low frequency frequency adjustment potentiometer 12 is connected to the low frequency oscillator circ...
Embodiment 3
[0029] On the basis of Example 2, such as Figure 1-2 As shown, the switch control circuit 9 includes four op-amp integrated circuits LM324-U4, photocouplers PC817-U2~PC817-U3, photocouplers PC817-U5~PC817-U6, resistors R3~R7, resistors R11~ R15, variable resistor VR3, variable resistors VR6~VR8 and light-emitting diode VD1, the pin 2 of the four operational amplifier integrated circuit LM324-U4 is connected to the variable resistor VR3, and one end of the variable resistor VR3 is grounded , the fixed end of the variable resistor VR3 is connected to one end of the resistor R3, the fixed end of the variable resistor VR and the resistor R3 are connected to +5V, and the other end of the resistor R3 is connected to the anode of the light-emitting diode VD1, so The cathode of the light-emitting diode VD1 is grounded, the pin 3 of the four operational amplifier integrated circuit LM324-U4 is connected to the collector of the photocoupler PC817-U2, and the collector of the photocoupl...
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