Circuits & Schematics - Automation - 3
Subsection: "Automation"
Systems for industrial and home automation, data-loggers.
Search results: 74 Output: 21-30
- Paul MoffatI was using a thermoelectric cooler for a camping trip and discovered the next morning that my car battery was dead from the load. I never expected a 3.5-A load to drain the battery in eight hours. So I went about making a circuit that could be ...Dec 1, 2021
- Carlos Castro-Miguens José Benito Castro-MiguensCities and towns worldwide are considering and installing LED streetlights to help save electric energy, reduce costs, protect the environment, and improve lighting for their citizens. Despite this trend, the lamps’ turn-on/ turn-off time ...Oct 28, 2021
- Praveen Kr. Agrawal S. V. NakheContactless washbasin taps that can dispense water without the risk of communicating diseases can play an important role in the battle against the COVID-19 virus. At present, most of the world’s washbasin taps are hand operated, but this ...Aug 9, 2021
- Deadband circuits find applications in servo-control systems. A precision current source and a half-wave inverting rectifier form a positive deadband circuit (Figure 1). The REF01 , IC 1 , is a precision 10 V voltage reference. It forms a precision ...Jun 1, 2021
- Stephen WoodwardA popular category of aiming/pointing aids is the reflex, or “red-dot,” sight. This system finds use in such diverse applications as astronomy, archery, and shooting. In the reflex sight, light from an internal source typically a ...Mar 3, 2021
- A “swamp cooler” is an easy way to obtain effective air conditioning, especially in hot and dry climates, if a water source is readily available. Although most units are very reliable, the storage-reservoir control usually uses a single ...Dec 22, 2020
- Fan noise is becoming a significant issue as electronic equipment increasingly enters the office and the home. Noise is proportional to fan speed, and the airflow hence, fan speed necessary for cooling is less at low ambient temperatures. Because ...Nov 12, 2020
- T.K. HareendranMany robotic applications require a sensor to detect close or very close obstacles. Typically, reflective-type infrared sensors are used for this task. But the circuit in the figure 1 shows an infrared close-object alert system built around two ...Dec 10, 2018
- Maxwell Strange EDN Forget to turn off the ceiling fan in your bathroom? Install the simple timer in Figure 1. It's located out-of-sight in the fan unit, and you turn it on via the wall switch. The circuit costs virtually nothing, using junk ...Jul 4, 2018
- Sundaresan Sundararaj Electronic Design This idea describes a white-LED (WLED) driver circuit controlled by a simple ambient light sensor (ALS). A typical application would be a brightness control for cell-phone backlighting. On a very sunny day, ...Mar 11, 2018
