Post History
I was analyzing the design a hazard warning light.The spec of the light turn on off is given below. The flashing-light frequency shall be 90+/-30 times per minute. May I know in this case the...
#2: Post edited
by
newbie
·
2024-04-25T15:43:28Z (7 months ago)
- I was analyzing the design a hazard warning light.The spec of the light turn on off is given below.
- > The flashing-light frequency shall be 90+/-30 times per minute.
May I know in this case the frequency(ignoring 30) will be 60/90Hz or 90/60Hz?- The designer used [this IC ](https://fscdn.rohm.com/en/products/databook/datasheet/ic/power/led_driver/bd18327efv-m-e.pdf)to generate the PWM.
What will be the rise and fall time of the PWM coming from this IC
- I was analyzing the design a hazard warning light.The spec of the light turn on off is given below.
- > The flashing-light frequency shall be 90+/-30 times per minute.
- _May I know in this case the frequency(ignoring 30) will be 60/90Hz or 90/60Hz?_
- The designer used [this IC ](https://fscdn.rohm.com/en/products/databook/datasheet/ic/power/led_driver/bd18327efv-m-e.pdf)to generate the PWM.
- _What will be the rise and fall time of the PWM coming from this IC_
#1: Initial revision
by
newbie
·
2024-04-25T15:42:54Z (7 months ago)
Flash light frequency and rise time calculation
I was analyzing the design a hazard warning light.The spec of the light turn on off is given below. > The flashing-light frequency shall be 90+/-30 times per minute. May I know in this case the frequency(ignoring 30) will be 60/90Hz or 90/60Hz? The designer used [this IC ](https://fscdn.rohm.com/en/products/databook/datasheet/ic/power/led_driver/bd18327efv-m-e.pdf)to generate the PWM. What will be the rise and fall time of the PWM coming from this IC