Arbitrary waveform generation method of electric acupuncture apparatus

The invention relates to an arbitrary waveform generation method of an electric acupuncture apparatus, and belongs to the technical field of electronic medical equipment. A master controller of the electric acupuncture apparatus can obtain waveform envelope data and pulse type parameters through a touch screen and a keyboard, the data is stored into a memory, then the data is sequentially read out from the memory, processed and then conveyed into a digital-analog converter, the digital-analog converter is used for transforming digital waveform quantity to analog voltage quantity, high-frequency noise is removed through a low-pass filter, and then the analog voltage quantity enters an analog amplifying circuit for achieving the required amplitude. The controller can send out the data in a circulating manner, and the required circulating waveform can be produced.