Heat and low frequency therapy device enabling an electric current to flow, in accordance with control waveform and voltage, to treatment sites via the two pads, while facilitating conduction of heat generated by a thermoelectric layer to the treatment sites
A heat and low frequency therapy device is disclosed, which comprises a host, a control circuit and two pad bodies. The control circuit comprises an input interface, a processor, an amplifier circuit and a negative half-wave diminishing circuit. The dc power supply is amplified into a voltage of 30 to 80 volts and a frequency of 50 to 60 Hz, and the current can be adjusted by a user to less than or equal to 80 milliamps. The negative half-wave diminishing circuit is utilized to receive control signals to produce a positive half-wave waveform with a peak time of about 0.2 milliseconds. A diode is utilized to diminish a negative half-waveform generated by the dc power, thus to produce a control waveform. When the two pad bodies controlled by the processor is utilized to supply power, the current flows, in accordance with the control waveform and the voltage, to the treatment sites via the two pad bodies, while conducting the heat generated by the thermoelectric layer deep into the treatment sites. Accordingly, the disclosed heat and low frequency therapy device is established.一種熱及低週波治療裝置,包括主機、控制電路和二墊體,控制電路包含輸入介面、處理器、放大電路和負半波消弭電路,直流電源經放大電路的電壓為30至80伏特且頻率為50至60赫茲,電流可由使用者自行調整為小於或等於80毫安培;負半波消弭電路接收控制訊號以產生波峰時間約0.2毫秒的正半週波形,且一二極體消弭直流電源產生之負半週波形,以產生一控制波形;二墊體經處理器控制而供電時,電流依前述控制波形和電壓而由二墊體流經所放置之治療部位,同時將電熱層所生之熱能傳導至治療部位的深層,藉此構成本發明。1‧‧‧主機11‧‧‧電源供應器12‧‧‧變壓器13‧‧‧螢幕14‧‧‧蜂鳴器2‧‧‧控制電路21‧‧‧輸入介面212‧‧‧編碼器213‧‧‧遙控器22‧‧‧處理器23‧‧‧放大電路24‧‧‧負半波消弭電路25‧‧‧輸出電極26‧‧‧輸出電極3‧‧‧墊體
