поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

Preview PDF HTML

AN3372 датащи(PDF) 24 Page - STMicroelectronics

номер детали AN3372
подробное описание детали  This note describes digital ballast for 70 W HID lamps
PDF  37 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN3372 датащи(HTML) 24 Page - STMicroelectronics

Back Button AN3372 Datasheet HTML 20Page - STMicroelectronics AN3372 Datasheet HTML 21Page - STMicroelectronics AN3372 Datasheet HTML 22Page - STMicroelectronics AN3372 Datasheet HTML 23Page - STMicroelectronics AN3372 Datasheet HTML 24Page - STMicroelectronics AN3372 Datasheet HTML 25Page - STMicroelectronics AN3372 Datasheet HTML 26Page - STMicroelectronics AN3372 Datasheet HTML 27Page - STMicroelectronics AN3372 Datasheet HTML 28Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 24 / 37 page
background image
ST7 microcontroller application pin use
AN3372
24/37
Doc ID 018625 Rev 1
Figure 16.
Half bridge ZCD circuitry
The buck circuit realized in the half bridge works in transition mode. To obtain this feature an
auxiliary winding is wound in the main inductor of the half bridge and when the current
reaches the zero value the variation of voltage is used by the PC0 pin of the microcontroller
to start the conduction of the power switches.
●
Pin 23: not used
●
Pin 24: HEI: MCU output used for igniter gate driver.
Figure 17.
Enable/disable igniter circuitry
Figure 16
shows that Q4 enables or disables the charge of capacitor C11. When the voltage
exceeds the voltage across D5, the discharge happens and in the primary winding the
generated high voltage ignites the lamp. The microcontroller generates a signal for the
L6382D5 that drives Q4. This pin is used also for microcontroller flash programming.
●
Pin 25: PC3 this pin is used also for microcontroller flash programming
●
Pin 26: LTIC PFC zero current detect.



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37


датащи скачать

Go To PDF Page


ссылки URL



Вашему бизинису помогли Аллдатащит?  [ DONATE ] 

Что такое Аллдатащит   |   реклама   |   контакт   |   Конфиденциальность   |   Ссылка на техническое описание    |   обмен ссыками   |   поиск по производителю
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