What is pulse width distortion (|tPHL - tPLH |)?
Latest Updated:02/01/200
Question:
What is pulse width distortion (|tPHL - tPLH |)?
Answer:
This parameter indicates how much the signal input and propagated from the light-emitting side changes at the light-receiving side.
This change is expressed as | tPHL - tPLH| by using the propagation delay times.
It can be said that the lower the value of |tPHL - tPLH| is, the less distorted the photocoupler is, i.e., the less its pulse width changes.
[Propagation delay time and test circuit in the PS9117A data sheet]
Related FAQ:What are propagation delay time (H → L) tPHL and propagation delay time (L → H) tPLH?
This change is expressed as | tPHL - tPLH| by using the propagation delay times.
It can be said that the lower the value of |tPHL - tPLH| is, the less distorted the photocoupler is, i.e., the less its pulse width changes.
[Propagation delay time and test circuit in the PS9117A data sheet]
Related FAQ:What are propagation delay time (H → L) tPHL and propagation delay time (L → H) tPLH?
Suitable Products
| Zener Diodes for Surge Absorption |
| Photocouplers / Optocouplers |