On 16/08/06, Peter Loveday <[EMAIL PROTECTED]> wrote: > > Can anyone provide me with a spec sheet or at least pin outs for a > > motor speed control IC from the early 90s labeled ULA2G131E2 ? > > I can't find reference to it in any databook or online resource. Is there > any other marking, or manufacturer?
It's got a little open triangle symbol (delta) in the corner other than that, nothing. > Is it possible its a programmable gate array chip of some sort? ULA is a > common abbreviation for various types of these (Uncommited Logic Array) - > does it just drive a 5V stepper, or are we talking analogue motor control? It's driving the gate of an SCR which hangs off a FWB on the 50Hz mains and feeds a large DC motor. Cheers, -- Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://home.swiftdsl.com.au/~distudio//publications/ Pentax user since 1986, PDMLer since 1998 -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
