![]() |
Electronic Components Datasheet Search |
|
NE555 Datasheet(PDF) 10 Page - Diodes Incorporated |
|
|
NE555 Datasheet(HTML) 10 Page - Diodes Incorporated |
10 / 14 page ![]() NE555/SA555/NA555 PRECISION TIMERS NE555/SA555/NA555 Document number: DS35112 Rev. 4 - 2 10 of 14 www.diodes.com February 2012 © Diodes Incorporated Typical Applications Characteristics (cont.) Pulse Width Modulation The operation of the timer can be modified by modulating the internal threshold and trigger voltages, which is accomplished by applying an external voltage (or current) to CONT. Figure 10 shows a circuit for pulse-width modulation. A continuous input pulse train triggers the monostable circuit, and a control signal modulates the threshold voltage. Figure 11 shows the resulting output pulse-width modulation. While a sine-wave modulation signal is shown, any wave shape could be used. Fig 10. Circuit for Pulse width modulation Fig 11. Pulse width modulation timing diagrams Pulse Position Modulation As shown in Figure 12, any of these timers can be used as a pulse-position modulator. This application modulates the threshold voltage and, thereby, the time delay, of a free-running oscillator. Figure 13 shows a triangular-wave modulation signal for such a circuit; however, any wave shape could be used. Fig 12. Circuit for pulse position modulation Fig 13. Pulse position modulation timing diagrams |
Similar Part No. - NE555 |
|
Similar Description - NE555 |
|
|
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 |
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 |