Users Also Read
MCQ's Search Engine
Electrical Engineering
Mechanical Engineering
Civil Engineering
Automobile Engineering
Chemical Engineering
Computer Engineering
Electronics Engineering
Medical Science Engg
All Engineering Dictionary Terms
Definition of "Doubler" |
An electronic device that doubles the voltage or the frequency of an input signal. / A doubler is an electronic device that doubles the frequency of an input signal . Doublers are occasionally used in wireless communications to obtain transmission frequencies higher than those normally possible for a given circuit design.A doubler works by introducing nonlinearity into the input signal, that is, the waveform is deliberately distorted. This results in the generation of signals at harmonic frequencies, which are whole-number multiples of the input, or fundamental, frequency. In a doubler, a tuned circuit in the output is adjusted for resonance at the second harmonic of the input frequency (twice the fundamental). / The simplest form of envelope detector is the diode detector which is shown above. A diode detector is simply a diode between the input and output of a circuit, connected to a resistor and capacitor in parallel from the output of the circuit to the ground. If the resistor and capacitor are correctly chosen, the output of this circuit should approximate a voltage-shifted version of the original baseband signal. A simple filter can then be applied to filter out the DC component. |
Please type any word or choose alphabet below... |
A
B
C
D
E
F
G
H
I
J
K
L
M N O P Q R S T U V W X Y Z 1 2 3 4 5 6 7 8 9 0 |