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poornima d sri ramakrishna institute of technology variable frequency control biomedical instrumentation effect of source inductance dual converters scr triggering scr snubber circuit scr firing circuits scr commutation characteristics of scr characteristics of mosfet characteristics of igbt triac scr mosfet introduction to power electron igct gto bjt rectifiers diode rectifiers uncontrolled converters type c chopper type b chopper type a chopper control strategies of chopper buck converter boost converter power electronics choppers dc-dc converters controlled rectifiers free wheeling diode three phase half wave rl load three phase half wave r load three phase full wave rl load single phase half wave rle loa single phase half wave rl load single phase half wave r load single phase full wave rle loa single phase full wave rl loa single phase full wave r load eog emg phonocardiograph electroretinography electrooculography electromyography ecg machine enthovens triangle 12 lead placement electrodes for ecg electrocardiogram ecg biosignals eeg machine 10-20 electrode placement elelctroencephelogram eeg bio potentials bio amplifiers biomedical instrumentation system uncontrolled rectifiers power electronic converters power electronic applications power electronics introduction defibrillator pacemaker cardiac arrhythmia plethysmography blood flow rate measurement cardiac output measurement system biotelemetry patient monitoring systems oximetry heart rate measurement apnoea body temperature measurements blood pressure measurement heart sounds pcg erg v/f control of induction motor stator voltage control pole changing speed control of induction mot field current control four quadrant chopper fed dc d chopper fed dc drives phase controlled converter fed ward leonard drives types of armature voltage cont speed control of dc motors regenerative braking types of electric braking braking of dc motors starting of dc motors equations governing motor load choice of electric drives multimotor drive individual drive group drive working of pmsm construction of pmsm permanent magnet synchronous m power factor control margin angle control closed loop control of synchro self synchronous mode of synch self controlled mode of syncro open loop control of synchrono true synchronous mode speed control of synchronous m vector control of induction mo close loop speed control closed loop torque control current limit control closed loop control of drives static kramer drive static scherbius drive slip power recovery rotor resistance control block diagram of electric driv pwm techniques harmonic control of inverters voltage control of inverters voltage source inverters three phase invertes 180 degree conduction 120 degree conduction full bridge converters half bridge converters single phase converters inverters dc-ac converters resonant converters switched mode regulators fly back converter four quadrant chopper two quadrant chopper second quadrant chopper first quadrant chopper type e chopper parts of an electric drive disadvantages of electric driv advantages of electric drives types of electric drives electric drives matrix converters three phase to three phase cyc three phase to single phase cy single phase to single phase c step down cycloconverter step up cycloconverter cycloconverters sequence control in ac regulat power factor control in ac reg ac phase control integral cycle control three phase ac voltage control single phase ac voltage contro current source inverters space vector modulation type d chopper