What is an angle of phase shift for each designed RC network in the Phase Shift Oscillator circuit?(a) 60^o(b) 90^o(c) 180^o(d) 45^oThe question was posed to me during a job interview.My doubt is from Frequency Compensation topic in chapter Frequency Response of Electronic Devices & Circuits

What is an angle of phase shift for each designed RC network in the Ph

1.	What is an angle of phase shift for each designed RC network in the Phase Shift Oscillator circuit?(a) 60^o(b) 90^o(c) 180^o(d) 45^oThe question was posed to me during a job interview.My doubt is from Frequency Compensation topic in chapter Frequency Response of Electronic Devices & Circuits
Answer» Right option is (a) 60^o Explanation: R-C phase shift oscillator CONSISTS of three identical basic R-C phase shifting kind of networks approved in the cascade configuration. Thus, the total phase shift introduced by three stage R-C network is equal to 180^o, which implies that the output of network LEADS its input by 180^o. As a result, it infers that each phase-shift stage acquires the phase shift of about 60^o. RC network is also renowned as ‘Ladder network’. The phase-shift of about 180^o is generated PARTICULARLY at one particular frequency, which is MEASURED to be the frequency of operation of the oscillator.

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What is an angle of phase shift for each designed RC network in the Phase Shift Oscillator circuit?(a) 60^o(b) 90^o(c) 180^o(d) 45^oThe question was posed to me during a job interview.My doubt is from Frequency Compensation topic in chapter Frequency Response of Electronic Devices & Circuits

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