All amplifier typically exhibit a band-pass frequency response. The cut off frequency in the low end is usually determined by the coupling band bypass capacitor .and the high frequency limit is typically determined by internal capacitances in the transistor itself.
It can take a lot of capacitance to present a low impedance to a low frequency. Electrolytics offer lots of capacitance for a low price.
pinagdugtong na madaming amplifier
all reactive elements in the amplifier, including stray capacitances and inductances.
The signal gain of a CE BJT amplifier is hFe or collector resistance divided by emitter resistance, whichever is less.
Gain in a CE configuration of a BJT is collector resistance divided by emitter resistance, subject to the limit of hFe. The emitter bypass capacitor will have lower impedance at high frequency, so the gain will be higher at higher frequency, making this a high-pass amplifier.
It can take a lot of capacitance to present a low impedance to a low frequency. Electrolytics offer lots of capacitance for a low price.
frequency response curve helps us to find the bandwidth of particular amplifier circuit. Bandwidth is the range of frequency at which the amplifier works better....
pinagdugtong na madaming amplifier
The range of the amplifier's frequency response refers to the range of frequencies that the amplifier can accurately reproduce. It typically spans from 20 Hz to 20,000 Hz, covering the audible spectrum of human hearing.
all reactive elements in the amplifier, including stray capacitances and inductances.
If the square wave gets distorted a lot, then the frequency response is not good.To get more precise data, you really should not use square waves; since you want the frequency response, you need to test how the amplifier reacts to pure waves (sine waves) of different frequencies.
The signal gain of a CE BJT amplifier is hFe or collector resistance divided by emitter resistance, whichever is less.
Gain in a CE configuration of a BJT is collector resistance divided by emitter resistance, subject to the limit of hFe. The emitter bypass capacitor will have lower impedance at high frequency, so the gain will be higher at higher frequency, making this a high-pass amplifier.
High frequency amplifier is a device which is tuned by high frequency. Tuned means the overlapping of generated frequency with that amplifier.
Selective amplifier is an RF amplifier which selects particular frequency and amplifier so it can operate at fixed frequency.
the common collector can use as voltage buffer
A; An amplifier will have no effect on the input frequency however its output may not follow the input frequency at the hi end due to the amplifier limitations