RT journal article
T1 Peak Detector Effect in Low-Dropout Regulators
A1 Palomar, C.
A1 Franco, F.J.
A1 López Calle, Isabel
A1 Izquierdo, J.G.
A2 Ingeniería en AutomáticaElectrónica, Arquitectura y Redes de Computadores
K1 Transient analysis
K1 Capacitors
K1 Regulators
K1 Detectors
K1 Voltage control
K1 Transistors
K1 Resistors
K1 Long duration pulses
K1 lossy peak detector effect
K1 operational amplifiers
K1 single event transients
K1 voltage regulators
AB The peak detector effect is a phenomenon that makes single event transients much longer once an error amplifier switches from linear to saturation zone due to the presence of external capacitors. This is so-called since it was discovered in a simple voltage reference in which a parasitic lossy peak detector was unwillingly built in the output stage. In this paper, peak detector effect is generalized to explain the appearance of long duration pulses in typical low dropout voltage regulator built with discrete devices. This effect has been related to the way in which the negative feedback loop is closed and to the kind of pass device in the output stage. Thus, if the linear voltage regulator consists in an error amplifier the output of which controls a current source, the peak detector effect will occur if the current source is unidirectional, the output load does not drain enough current and is in parallel with an external capacitor.
PB IEEE- INST ELECTRICAL ELECTRONICS ENGINEERS
SN 0018-9499
YR 2013
FD 2013-08
LK http://hdl.handle.net/10498/30772
UL http://hdl.handle.net/10498/30772
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 10-may-2026