Monday, September 21, 2015

The working principle of ultrashort wave therapy apparatus

FM treatment works:high-frequency oscillator as G1,G2 and the push-pull oscillator circuit belongs element thereof.L1 is the oscillation coil,it distributed capacitors oscillator tank circuit line,decided the aircraft's operating frequency.L4 is the gate of the feedback coil,Rg is the gate bias resistor.Output circuit L2,C1,L3 composed of magnetic coupling series resonant circuit,C1 is the tuning capacitor.

Power circuit from the B1,B2,G3,G4 and other components.B2 for the filament transformer,providing G1 ~ G4 filament supply.B1 for the high-voltage transformer,followed by level by "large and small super",select AC or 600V 1650V high voltage switch provides full-wave rectifier to G3 and G4 when.Indeed K2 native coarse output intensity switch,when K2 is set to "Super" position,the output power of about 250 ~ 300W,when a small ultra-speed,output power of about 50 ~ 70W.Output intensity can be fine-tuning operation selector switch K1 changes B1 primary turns,the secondary pressure output change,the purpose of adjustment.When K1 successively set 1-6 stalls were closed,preheat treatment I & mdash; IV.L5 high frequency choke.



The chassis is divided into two parts box.High voltage transformer B1 means lower cabinets,consists of two rows of straight lines and plug seat will turn on the box.Measuring meter CB series with the high voltage transformer secondary center tap ground,measuring oscillating tube screen flow,as the aircraft reference frequency current output size.

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