Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Why does HV9860 LED driver have to use DCM?

Status
Not open for further replies.
T

treez

Guest
Newbie level 1
On page 1 of the HV9860 datasheet it says that the HV9860 is for DCM .

Why is it only for DCM?
Surely it can be used with CCM also? (especially if the duty cycle was <0.5 as then no slope compensation is needed)

HV9860 DATASHEET
**broken link removed**
 

It's possible the IC needs to see coil current go to zero during each cycle. Particularly in flyback operation. A flyback has no current in the primary during switch-Off.

If it were in CCM, then coil current would never go to zero.
 
  • Like
Reactions: treez

    T

    Points: 2
    Helpful Answer Positive Rating
here some of thing which is only useful in some products
if you have any problem regarding your cell phone and there network then you can ask here , we have lots of solution for it like if you lost your bettry during the trevlling then what you do , for this we have mobile power bank which is very useful in travelling time it charge your bettry very fast and provide you a full bettry it is portable device and easy to use there are very veriaty for this
**broken link removed**
 
  • Like
Reactions: treez

    T

    Points: 2
    Helpful Answer Positive Rating
Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top