Re: LM12 lamp module

["Dan" <dtoma@xxxxxxx>]

Hi Jon,

Gate current for BT139 is even lower.... around 25mA comparing with 30mA
for BTA10.

You know the IC from LM12 module? There are some pins (7,8,9) I think which
can be used to locally dim/bri the module.

Do you know something about this?

Dan
  ----- Original Message ----- 
  From: Jon Payne 
  To: ukha_d@xxxxxxx 
  Sent: Tuesday, October 22, 2002 3:30 PM
  Subject: Re: [ukha_d] LM12 lamp module


  Hi Dan,
  It will probably be ok as long as the minimum gate current is the
same as the
  original.
  jon
  ----- Original Message -----
  From: "Dan" <dtoma@xxxxxxx>
  To: <ukha_d@xxxxxxx>
  Sent: Tuesday, October 22, 2002 1:18 PM
  Subject: Re: [ukha_d] LM12 lamp module


  > Hi Pete,
  >
  > What application do you use to dim/bri-it?
  >
  > Another question... someone have tried to change the included
triac
  BTA10-400C (10A/400V) with a BT139/800 (12A/800) one in order to
increase the
  maximum power? I need to operate a set of 15x50W halogen spots
(750W).
  >
  > This modification is enough or more changes in the schematic
are necessary?
  >
  > Thank you,
  > Dan



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