Electronic Technician Certification Program e ReviewBJTAmplifiers October 13
Electronic Technician Certification Program e. Review_BJTAmplifiers October 13, 2020 CE Amplifier 1. Input apply to the Base of transistor and out from the collector 2. Input and output 180 degrees out of phase ( opposite )
Electronic Technician Certification Program e. Review COMMON EMITTER Amplifier October 13, 2020 zin zout
Electronic Technician Certification Program e. Review COMMON EMITTER Amplifier October 13, 2020 zin
Electronic Technician Certification Program e. Review COMMON EMITTER Amplifier October 13, 2020
Electronic Technician Certification Program e. Review COMMON EMITTER Amplifier October 13, 2020 zout Suppose Ie = Ic If not then Ie = (1+beta*Ib) and Ic=beta*Ib. In this case zout = RC
Electronic Technician Certification Program e. Review COMMON COLLECTOR Amplifier October 13, 2020 CC Amplifier 1. Input apply to the Base of transistor and out from the emitter (another name: emitter follower) 2. Input and output in-phase 3. The gain close to 1 zin zout
Electronic Technician Certification Program e. Review COMMON COLLECTOR Amplifier October 13, 2020 Vout = Ie x Re Vin = Ie x (r’e + Re) Voltage gain Av = Vout/Vin = Ie. Re / Ie(r’e +Re) Av = Re / ( r’e +Re ) zin zout Zin =Rin(total) = R 1 // R 2 // Rin(base) Zout = Re = RE // RL
Electronic Technician Certification Program e. Review COMMON BASE Amplifier October 13, 2020 CB Amplifier 1. Input apply to the emitter of transistor and out from the collector (another name: emitter follower) 2. Input and output in-phase
Electronic Technician Certification Program e. Review COMMON BASE Amplifier October 13, 2020
Electronic Technician Certification Program THE E N D
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