Modify a LED chaser circuit into the easy timer
The a LED chaser is popular, so we will modify it into the easy and cheap timer. First,a appliance will works, while respective LEDs will flash, and until all LEDs go out. Then the appliance stop. How it works. In Figure 1 is the circuit. To begin with, to apply …
Timer control 1-15 minutes by Triac 2N6075 and LM555-LM358
Most timer circuits. Often used with electrical transformers containing low as 9V and 12V, and use of electrical control relays.but the 1-15 minute timer circuit.It uses a triac instead of electrical control.This can be used with a 220V power house it is not connected to the transformer. Make smaller and …
Timer set for 30 minutes by transistor
This circuit is based on learning of the discharge and charge of the C, which can be used as a timer circuit and can be applied in the off electrical appliances. The application has also put relay instead of LED can be enabled. This circuit is working as video below: …
Simple Timer by CA3140 + NE555
This be the circuit sets the time to model is simple,at can fix the time had long ago and have tall good accuracy. By use pillar equipment be IC CA3140 for fix time mouth and NE555 perform sound electric bell origin. By we can fine time value done to a …