power factor correction

Hi to all.
I am looking to design a PFC (input current shaping) cct for up to
about 300W (universal input).
I have been pointed to an ic GPTAC1300 from Green power which looks
like it would be perfect for the job. Anyone have any experience with
this chip.
Are there any other "common" ic's that are easly obtainable and "cheap"
, that have similar or better functionality.
Thanks
Rob

 

[legg]

On 3 Aug 2005 06:03:29 -0700, seegoon99@yahoo.com wrote:

Hi to all.
I am looking to design a PFC (input current shaping) cct for up to
about 300W (universal input).
I have been pointed to an ic GPTAC1300 from Green power which looks
like it would be perfect for the job. Anyone have any experience with
this chip.
Are there any other "common" ic's that are easly obtainable and "cheap"
, that have similar or better functionality.

Your reference is a power switch integrated with a CCM controller in a
custom TO247 body. These are unlikely ever to be either particularly
cheap, or second-sourced.

I would steer clear of any mfr that places power mos switch drain and
small-signal control feedback terminals on adjacent pins of any IC
package. This illustrates a basic naivety of practical power
electronics.

Commodity type 8-pin CCM PFC controller IC's (add your own power
switch):


L6561
MC34260/34261
ML4803
ML4824
NCP1650
UCC38051
UCC38500



Not an inclusive list, by a long shot.

RL

 

[Joerg]

Hello RL,

Your reference is a power switch integrated with a CCM controller in a
custom TO247 body. These are unlikely ever to be either particularly
cheap, or second-sourced.

I would steer clear of any mfr that places power mos switch drain and
small-signal control feedback terminals on adjacent pins of any IC
package. This illustrates a basic naivety of practical power
electronics.

That would give me goose pimples.

Commodity type 8-pin CCM PFC controller IC's (add your own power
switch):

L6561
MC34260/34261
ML4803
ML4824
NCP1650
UCC38051
UCC38500

Not an inclusive list, by a long shot.

Plus lots of European parts but if you are in North America it's often
better to stick with the big semi mfgs here. Infineon has some real nice
ones though, like the TDA16888 that combines PFC and PWM in one chip:
http://www.infineon.com/upload/Document/cmc_upload/documents/025/387/PWM-PFCCombiICTDA16888G.pdf?BV_SessionID=@@@@1138309269.1123100836@@@@&BV_EngineID=cccdaddfgddkimhcflgcegndfifdfoh.0
http://www.infineon.com/upload/Document/cmc_upload/documents/025/389/AN_TDA16888G.pdf?BV_SessionID=@@@@1138309269.1123100836@@@@&BV_EngineID=cccdaddfgddkimhcflgcegndfifdfoh.0

Regards, Joerg

http://www.analogconsultants.com