Pulse therapy circuit

The circuit of the pulse therapy device is shown in the figure. It has the characteristics of simple circuit, easy production and low price, and is suitable for personal production and
use at home.
    The circuit of this pulse therapy device is composed of a transistor VT, a pulse transformer T2 and related peripheral components to form an oscillator circuit . Its oscillation frequency ranges from
2Hz to tens of Hz.
    After turning on the power switch S (linked with RP2), VT connects its positive feedback winding Wl, capacitor Ci, and resistor R. , under the action of the potentiometer RP1
, it quickly entered the low-frequency switching state of conduction and conduction-off-conduction; after the oscillator oscillated, a low-frequency oscillation pulse signal
was output from the sliding head of the potentiometer RPZ . The pulse signal acts on the user's skin or acupuncture points through electrodes to assist in the treatment of diseases .     Adjusting RPI can change the working frequency of the therapeutic device; adjusting RP2 can change the amplitude of the output pulse signal , that is, adjusting the intensity of the electrical pulse .