Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

UAA145 Datasheet(PDF) 2 Page - TEMIC Semiconductors

Part # UAA145
Description  Phase Control Circuit for Industrial Applications
Download  11 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  TEMIC [TEMIC Semiconductors]
Direct Link  http://www.temic.de
Logo TEMIC - TEMIC Semiconductors

UAA145 Datasheet(HTML) 2 Page - TEMIC Semiconductors

  UAA145 Datasheet HTML 1Page - TEMIC Semiconductors UAA145 Datasheet HTML 2Page - TEMIC Semiconductors UAA145 Datasheet HTML 3Page - TEMIC Semiconductors UAA145 Datasheet HTML 4Page - TEMIC Semiconductors UAA145 Datasheet HTML 5Page - TEMIC Semiconductors UAA145 Datasheet HTML 6Page - TEMIC Semiconductors UAA145 Datasheet HTML 7Page - TEMIC Semiconductors UAA145 Datasheet HTML 8Page - TEMIC Semiconductors UAA145 Datasheet HTML 9Page - TEMIC Semiconductors Next Button
Zoom Inzoom in Zoom Outzoom out
 2 / 11 page
background image
UAA145
TELEFUNKEN Semiconductors
Rev. A1, 29-May-96
2 (11)
General Description
The operation of the circuit is best explained with the help
of the block diagram shown in figure 1. It comprises a
synchronizing
stage,
ramp
generator,
voltage
com-parator, pulse generator, channel selecting stage and
two output amplifiers. The circuit diagram in figure 2 also
shows the external components and terminal connections
necessary for operation of the circuit.
As can be seen from figure 2, the circuit requires two
supply rails i.e. a +15 V and a –15 V. The positive voltage
is applied directly to Pin 1, while an external series
resistor in each line is used to connect the negative
voltage Pin 13 and Pin 15. In the following circuit
description each section of the block diagrams is
discussed separately.
Synchronization Stage
Pin 9 is connected, via a voltage divider (22 k
W and Rp),
to the ac line (sync. signal source). A pulse is generated
during each zero crossover of the sync. input. The pulse
duration depends on the resistance Rp and has a value of
50 to 100
ms. (figure 2).
In addition to providing zero voltage switching pulses this
section of the circuit generates blocking signals for use in
the channel selecting stage.
Ramp Generator
Transistor T7 amplifies the zero-crossover switching
pulses. During the sync process capacitor CS at Pin 7 is
charged to the operating voltage of reference diode Z4,
i.e., to approximately 8.5 V, the charging time being
always less than the duration of the sync pulse. The
capacitor
discharges
via
resistor
RS during each
half-cycle. The discharge voltage is of the same
magnitude as the charge voltage, and is determined by Z3.
To ensure an approximately linear ramp waveform, the
voltage is allowed to decay up to ca. 0.7 CsRs. Because
Z-diodes Z3 and Z4 have the same temperature
characteristics, the timing of the ramp zero crossover
point in relation to that of the sync. pulse is constant, and
consequently the pulse phasing rear limit is also very
stable.
Figure 2. Block diagram and basic circuit


Similar Part No. - UAA145

ManufacturerPart #DatasheetDescription
logo
List of Unclassifed Man...
UAA145 ETC1-UAA145 Datasheet
188Kb / 1P
   TELEFUNK ELECTRONIC CREATIVE TECHNOLOGIEN U2200B-FP
More results

Similar Description - UAA145

ManufacturerPart #DatasheetDescription
logo
TEMIC Semiconductors
U209B3 TEMIC-U209B3 Datasheet
206Kb / 14P
   Phase Control Circuit - Tacho Applications
U210B TEMIC-U210B Datasheet
378Kb / 15P
   Phase Control Circuit - Load Current Feedback Applications
U210B1 TEMIC-U210B1 Datasheet
166Kb / 12P
   Phase Control Circuit Load Current Feedback Applications
logo
ATMEL Corporation
U209B ATMEL-U209B_07 Datasheet
449Kb / 19P
   Phase Control IC for Tacho Applications
logo
Integral Corp.
IL2010B INTEGRAL-IL2010B Datasheet
274Kb / 7P
   PHASE CONTROL CIRCUIT FOR CURRENT FEEDBACK
logo
TEMIC Semiconductors
U2010B TEMIC-U2010B Datasheet
202Kb / 12P
   Phase Control Circuit for Current Feedback
logo
ARTSCHIP ELECTRONICS CO...
U2010B ARTSCHIP-U2010B Datasheet
3Mb / 11P
   Phase Control Circuit for Current Feedback
logo
TEMIC Semiconductors
U111B TEMIC-U111B Datasheet
431Kb / 6P
   Phase Control Circuit
logo
Littelfuse
SXX06RS2 LITTELFUSE-SXX06RS2 Datasheet
417Kb / 11P
   Excellent unidirectional switches for phase control applications
SXX12R LITTELFUSE-SXX12R Datasheet
351Kb / 8P
   Excellent unidirectional switches for phase control applications
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
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
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com