Circuits & Schematics - Automation
Subsection: "Automation"
Systems for industrial and home automation, data-loggers.
Search results: 73 Output: 1-10
- Stephen WoodwardI was surprised recently when a (nearly) two-decade-old design idea of mine for take-back-half temperature control ( Ref. 1 ) got a question from reader John Louis Waugaman. John says he needs a way to control the temperature of batches of rising ...Dec 10, 2024
- Валерий БабанинThere are many circuits of soldering station controllers, but absolutely all close the temperature feedback loop using the soldering iron heater thermistor. The performances of the soldering station can be improved and the circuit can be made ...Nov 15, 2024
- Stephen WoodwardPiezoelectric actuators (benders, stacks, chips, etc.) are excellent fast and precise means for generation and control of micro, nano, and even atomic scale movement on millisecond and faster timescales. Unfortunately, they are also excellent ...Nov 12, 2024
- Stephen WoodwardIn recent EDN design ideas, we’ve seen thermostat designs that meld the functions of sensor and heater into a single device: FET, BJT, or even a simple length of fine gauge copper wire. A virtue inherent in thermostat designs that use a ...Sep 18, 2024
- Stephen WoodwardConventional thermostats are based on separate temperature sensor and heater devices with means for feedback between them. But in some recent EDN design ideas (DIs) we’ve seen thermostat designs that meld the functions of sensor and heater ...Mar 4, 2024
- P. MarianThe solar panels are operating at optimal parameters when they are at the perfect right angle to the sun. Unfortunately this is accomplished only if solar panels are rotated by the sun. This is the purpose of this diy solar tracker system or if you ...Nov 14, 2023
- Stephen Woodward“The unfortunate relationship between servo systems and oscillators is very apparent in thermal-control systems,” said Linear Technology's Jim Williams ( Reference 1 ). Although high-performance temperature control looks simple in ...Oct 26, 2023
- Chau TranStreetlights, emergency lights, and security lights must automatically turn on when it gets dark. You base the control circuit on the resistance of a photoresistor or another LDR (light-dependent resistor) that varies with light intensity. An ...Oct 24, 2023
- Fred HicksIf someone in your family has the habit of not completely closing a drawer or perhaps the food freezer’s door you’ll appreciate this design. It senses an ajar door and, if the situation isn’t corrected within 20 sec, sounds a ...Sep 6, 2023
- Peter DemchenkoThe MOSFET in Figure 1 is used as both a heater and a temperature sensor in a thermostatic circuit. Figure 1. Circuit diagram for using a MOSFET as a thermostatic heater. The circuit can be used as a tiny thermostat for some biological structures ...Mar 30, 2023
