one transistor led flasher
http://free-schematic.blogspot.com/2010/02/led-flasher-with-one-transistor.html
tl431 datasheet
tl431 datasheet
TL431/TL431A Programmable Shunt Regulator
Features
. Programmable Output Voltage to 36 Volts
. Low Dynamic Output Impedance 0.20 Typical
. Sink Current Capability of 1.0 to 100mA
. Equivalent Full-Range Temperature Coefficient of
50ppm/°C Typical
. Temperature Compensated For Operation Over Full Rated
Operating Temperature Range
. Low Output Noise Voltage
. Fast Turn-on Response
Description
The TL431/TL431Aare three-terminal adjustable regulator
series with a guaranteed thermal stability over applicable
temperature ranges. The output voltage may be set to any
value between VREF (approximately 2.5 volts) and 36 volts
with two external resistors These devices have a typical
dynamic output impedance of 0.2W Active output circuitry
provides a very sharp turn-on characteristic, making these
devices excel lent replacement for zener diodes in many
applications.
Internal Block Diagram
Test Circuits
20W bridge amplifier for car radio used TDA7240A
20W bridge amplifier for car radio used TDA7240A
DESCRIPTION
radio applications.
Thanks to the low external part count and compactHeptawatt 7-pin power
package the TDA7240A
occupies little space on the printed circuit board.
download schematic diagram
str54041 datasheet
str54041 datasheet
Hybrid IC Voltage Regulator Module NPN Triple Diffused, for TV Switch Mode Power Supply
1 - features :
a . hyprid voltage regulator module incorporated triple diffused planar transistir chips
b . transfer molded
c . for tv switch mode power supply
d . fixed output voltage
2 - equivalent circuit
1 - vout sense
2 - base drive
3 - in put
4 - earth
5 - vo cont
download str54041 datasheet pdf
str50103 datasheet
str50103 datasheet
str50103 is a Voltage regulator
1- common
2- base drive
3- in put
4 - out put
5- vo control
download str50103 datasheet pdf
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