Moteur de recherche de fiches techniques de composants électroniques
  French  ▼

Delete All
ON OFF
ALLDATASHEET.FR

X  

Preview PDF Download HTML

LA4905 Fiches technique(PDF) 3 Page - Sanyo Semicon Device

No de pièce LA4905
Description  17-W, 2-Channel BTL AF High-Efficiency Power Amplifier for Car Stereo Systems
Download  10 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  SANYO [Sanyo Semicon Device]
Site Internet  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LA4905 Fiches technique(HTML) 3 Page - Sanyo Semicon Device

  LA4905 Datasheet HTML 1Page - Sanyo Semicon Device LA4905 Datasheet HTML 2Page - Sanyo Semicon Device LA4905 Datasheet HTML 3Page - Sanyo Semicon Device LA4905 Datasheet HTML 4Page - Sanyo Semicon Device LA4905 Datasheet HTML 5Page - Sanyo Semicon Device LA4905 Datasheet HTML 6Page - Sanyo Semicon Device LA4905 Datasheet HTML 7Page - Sanyo Semicon Device LA4905 Datasheet HTML 8Page - Sanyo Semicon Device LA4905 Datasheet HTML 9Page - Sanyo Semicon Device Next Button
Zoom Inzoom in Zoom Outzoom out
 3 / 10 page
background image
LA4905 High-Efficiency Technology
(1) Signal-following switching scheme
The LA4905 adopts a switching regulator scheme in
the power supply applied to the amplifier output stage.
The LA4905 power dissipation is reduced significantly
by having the output voltage of the switching regulator
follow the input signal. Furthermore, in combination
with the nonlinear amplifier scheme described below,
the LA4905 design reduces the number of switching
regulators to merely one circuit even though it is a
BTL 2-channel amplifier. (See Figure 1.)
(2) Nonlinear amplifier
The LA4905 adopts a nonlinear amplifier that has the
nonlinear characteristics shown in Figure 2 in the
amplifier signal system. This scheme does not use the
center point voltage of 1/2 VCC used in normal
amplifiers, but instead uses a voltage about 2 V lower.
This allows the design to dispense with the lower side
switching regulator.
This nonlinear amplifier has a structure based on a
differential amplifier that has symmetric negative
feedback circuits. Although the BTL output stage
positive and negative phase output waveform is a half-
wave waveform that is expanded and compressed as
shown in Figure 3, the combined output waveform at
the negative load terminal is identical to that output by
earlier products.
No. 5504-3/10
LA4905


Html Pages

1  2  3  4  5  6  7  8  9  10 


Fiches technique Télécharger

Go To PDF Page


Lien URL




Politique de confidentialité
ALLDATASHEET.FR
ALLDATASHEET vous a-t-il été utile ?  [ DONATE ] 

À propos de Alldatasheet   |   Publicité   |   Contactez-nous   |   Politique de confidentialité   |   Echange de liens   |   Fabricants
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn