voltage gain उदाहरण वाक्य
उदाहरण वाक्य
- Typically, tube amps use one or more dual triodes in the preamplifier section to provide sufficient voltage gain to offset tone control losses and drive the power amplifier section.
- These amplifiers amplify the voltage between the active electrode and the reference ( typically 1, 000 100, 000 times, or 60 100 dB of voltage gain ).
- A graph of a filter's gain magnitude, illustrating the concept of " 3 dB at a voltage gain of 0.707 or half-power bandwidth.
- If the IF amplifier needed a voltage gain of 10, 000, then it would need only two stages with an IF at 1 MHz but four stages at 10 MHz.
- That is, large voltage gain requires large " R C ", and that in turn implies a large DC voltage drop across " R C ".
- In the field of audio and general purpose amplifiers, especially operational amplifiers, the term usually refers to voltage gain, but in radio frequency amplifiers it usually refers to power gain.
- This loss of voltage gain is recovered by the upper FET . Thus, the upper transistor permits the lower FET to operate with minimum negative ( Miller ) feedback, improving its bandwidth.
- In the circuit shown, the NPN emitter-follower and the PNP emitter-follower will generally have very slightly different voltage gains, leading to slightly different gains above and below ground.
- For voltage amplification, the range of allowed output voltage swing in this amplifier is tied to voltage gain when a resistor load " R C " is employed, as in Figure 1.
- Because of negative feedback ( the cathode-ground voltage cancels the grid-ground voltage ) the voltage gain is close to unity and the output voltage " follows " the grid voltage.