Chapter 1 Flashcards
I_C,V_DS
– DC quantities
– an uppercase symbol
with uppercase subscript(s)
i_C(t), v_DS(t)
– Total instantaneous quantities
– A lowercase symbol with uppercase subscript(s)
What is a Power Amplifier?
Is used to boost current levels for increased “intensity”.
What is a Voltage Amplifier?
Is used to boost voltage levels for increased resolution.
What is a Fourier transform?
Obtain the frequency spectrum of a signal whose waveform is a function of time.
What does the Fourier series express?
A given periodic function of time as the sum
of an infinite number of sinusoids whose frequencies are harmonically related
What is a Frequency Spectrum?
The range of all possible frequencies of electromagnetic radiation.
What is the Fourier series utilized for?
To accomplish this task for the special case of a signal that is a periodic function of time.
Norton Ideal Resistor Source
Rs = infinity and Rs is reduced relative to RLoad.
Thevenin Ideal Resistor Source
Rs = 0 and Rs is increased relative to RLoad.
i_c(t), v_gs(t)
– Incremental signal quantities
– A lowercase symbol with lowercase subscript(s)
I_c, V_gs
– Amplitude of sine wave signal
– An uppercase symbol with lowercase subscript(s)
VCC, VDD, ICC, IDD
– DC power supplies
– An uppercase letter with a double-letter uppercase subscript
What are some applications of amplifiers?
- Pre-amplifier for cell phone
- Sensor circuit front-end
- Amplifier for audio
