Inside a cheap eBay rotary actuator скачать в хорошем качестве

Inside a cheap eBay rotary actuator

I do like mystery eBay control modules, so I got one of these actuators for us to explore. This unit is intended for Chinese 220V, but does operate on 110V too, but at much lower power (1W). It still has decent torque for some applications at the lower voltage. Its purpose is to rotate a plate (damper) inside a duct to select between full airflow or nearly none. There's no intermediate position with this unit - just on and off, and there's also no feedback to show it has operated successfully other than the actual airflow happening. I guess this could also control water valves and many other devices that use a rotation of 90 degrees. As with all cheap eBay industrial stuff, I regard this as suitable for hobby or prototyping use. I don't recommend using grey import items in commercial products. The operation is incredibly simple. Just a very standard 4W geared synchronous motor and two end of travel switches. No fancy direction control. Just relying on the motor stalling and reversing at the end of its travel. You can find these on eBay if you search for the keywords air damper actuator. Typical cost should be 10-15 pounds/dollars/euros. Be aware that the open and close connections can backfeed to each other, so should always be treated as being live while experimenting. I specifically avoid using intrusive mid-run video adverts, which means I don't earn as much from my content as other YouTubers. If you enjoy these videos you can help support the channel with a dollar or two for coffee, cookies and random gadgets for disassembly at:-   / bigclive   Patreon supporters get early access to videos as they are made, and also regular live streams. This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty. Other contribution options are available at:- http://www.bigclive.com/coffee.htm #ElectronicsCreators