I have several triacs at home (220V, 50 Hz) working with transformers for halogen lights with the following parallel network: - 100 Ohm / 600V - 1 uF / 600V I performed strage calculations (look for 'snubber network' in Altavista) to obtain these figures but my experience is that they are valid for most of the home appliances. ps: do not forget to use quick fuses; better safe... -------------------- Jeszs Gonzalo Lesn (SPAIN) -------------------- ----- Original Message ----- From: "Robert A. LaBudde" To: Sent: Tuesday, February 27, 2001 9:54 AM Subject: [EE]: Snubber network for Triac > I would like recommendations from the list for a snubber network to use > with a 400 V Triac on a 120 VAC power line. > > Requirements: > > 1) Load inductance ~ 200 uH (lines to resistive heater). > 2) 400 V 8 A triac, expected full 8 A load possible. > 3) 120 VAC, 60 Hz power line. > 4) Ignore load resistance for the estimation (i.e., assume pure 200 uH > inductive load). > > Questions: > > 1) What R and what C are ideal for this application? > 2) What voltage requirement for C? > 3) What voltage and wattage requirement for R? > > Thanks. > ================================================================ > Robert A. LaBudde, PhD, PAS, Dpl. ACAFS e-mail: ral@lcfltd.com > Least Cost Formulations, Ltd. URL: http://lcfltd.com/ > 824 Timberlake Drive Tel: 757-467-0954 > Virginia Beach, VA 23464-3239 Fax: 757-467-2947 > > "Vere scire est per causas scire" > ================================================================ > > -- > http://www.piclist.com hint: The list server can filter out subtopics > (like ads or off topics) for you. See http://www.piclist.com/#topics > > -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics