Datenblatt-Suchmaschine für elektronische Bauteile |
|
NCS2001 Datenblatt(PDF) 12 Page - ON Semiconductor |
|
NCS2001 Datenblatt(HTML) 12 Page - ON Semiconductor |
12 / 16 page NCS2001, NCV2001 www.onsemi.com 12 The non−inverting input threshold levels are set so that the capacitor voltage oscillates between 1/3 and 2/3 of VCC. This requires the resistors R1a, R1b and R2 to be of equal value. The following formula can be used to ap- proximate the output frequency. RT 470 k R2 470 k R1b 470 k R1a 470 k CT 1.0 nF 0.9 V fO = 1.5 kHz 0.67 VCC R1b 470 k VCC D2 1N4148 fO - + - + 0.9 V f O+ 1 1.39 R TCT VCC 0.33 VCC 0 Output Voltage Timing Capacitor Voltage VCC R2 470 k D1 1N4148 10 k 10 k 1.0 M cw R1a 470 k CT 1.0 nF 0.67 VCC VCC 0.33 VCC 0 Output Voltage Timing Capacitor Voltage 0.67 VCC VCC 0.33 VCC 0 Output Voltage Timing Capacitor Voltage The timing capacitor CT will charge through diode D2 and discharge through diode D1, allowing a variable duty cycle. The pulse width of the signal can be programmed by adjusting the value of the trimpot. The ca- pacitor voltage will oscillate between 1/3 and 2/3 of VCC, since all the resistors at the non−inverting input are of equal value. Clock−wise, Low Duty Cycle Counter−Clock−wise, High Duty Cycle Figure 34. 0.9 V Square Wave Oscillator Figure 35. Variable Duty Cycle Pulse Generator cww |
Ähnliche Teilenummer - NCS2001_17 |
|
Ähnliche Beschreibung - NCS2001_17 |
|
|
Link URL |
Privatsphäre und Datenschutz |
ALLDATASHEETDE.COM |
War ALLDATASHEET hilfreich? [ DONATE ] |
Über Alldatasheet | Werbung | Kontakt | Privatsphäre und Datenschutz | Linktausch | Hersteller All Rights Reserved©Alldatasheet.com |
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 |