These devices provide 6 dB of gain control range with integrated
peak detector on each channel for closed loop control.
The driver integrates the
peak detector and the temperature monitor.
The walk error correction technique had been proposed using the measured peak amplitude information by a
peak detector and a Gilbert cell [5].
CNFET-FCOA-Based
Peak Detector. As the name suggests, a
peak detector is a circuit which detects the peak value of applied input signal [41, 43] as shown in Figure 5(m).
This
peak detector sets a variable threshold that is dependent on the mean intensity of each individual image.
Therefore a
peak detector is used to capture these short pulses.
This information is utilized by the
peak detector to arrive at the peaks of QRS complex.
In order to generate the push-pull control voltage, the two peak voltages are generated using a
peak detector circuit.
It is designed, simulated and fabricated using a 0.18om 1P6M CMOS technology.The fabricated current-mode AGC chip consists of a current
peak detector, a current subtractor, a circuit which consists of a square current generator and a current divider.
In the second step Blais and Rioux linear
peak detector (Blais & Rioux 1986) is used since it provides the best results for subpixel position estimation (Fisher & Nadiu 1996).
At the top of the list was battery life followed closely by
peak detector performance and overall size of the ASIC.
A
peak detector follows the response of IF signals such that the voltage at the detector output follows the peak value of the IF signal at all times.
