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Found 2 results

  1. Hello We designed this Snubber Circuit with this varistor in parallel but we have a problem in a small load. Even when the relay is disconnected, a small current is flowing. For example, when connecting a phone charger, the phone screen keeps turning on and off. The varistor is Hongzhi Elec 7D471K The resistor is 2.2 ±5% 1W ±350ppm/°C Axial,3.3x9.2mm Carbon The capacitor is 100nF ±10% 275VAC 10 Through Hole,P=10mm Suppression Capacitors I think the problem is with the capacitor and maybe I need a smaller one to increase the impedance and limit the current flow or schematic problem.
  2. Hi guys, I would like to ask your help. I would like to make an electronic circuit where it can detect the fan failure and indicates it with the light. The specs are as follow: -240VAC cooling fan (4 unit) -1 tower light (green & red) I want to make the light indicate green when all the fan are working but the red when 1 or more of the fan fault. Thank you guys for your cooperation. I really appreciate it.
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