Needle-free pain-relieving instrument and its setting method
A timer and micro-controller technology, applied in artificial respiration, physical therapy, etc., can solve the problems of needle-free analgesic equipment setting and equipment not disclosed, and achieve good stimulating effect and strong analgesic effect
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[0035] See Electrical Schematics (Figure 2, Figure 3)
[0036]The upper circuit board in Figure 2 is mainly responsible for waveform generation, waveform frequency amplitude and pulse width control, LCD display and button processing, etc. Figure 3 shows that the lower circuit board is mainly responsible for voltage and current conversion, current amplification, positive and negative waveform generation, and power on and off control etc.
[0037] In Figure 2, the microcontroller D1 adopts EM78P468N from Taiwan Elan. The 8-bit mixed-signal microcontroller is used to control the output waveform, frequency amplitude and pulse width, respond to keys, and drive LCD display.
[0038] Among them, Q3, Q4, Q5 (transistor), D4 (78L05 linear adjustment tube), and S6 (switch) form a power circuit responsible for controlling the switch and voltage conversion circuit. When S6 is pressed, Q3 is turned on, and D4 converts a 5V voltage. The controller is powered on and starts to work, and keep...
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