A relay transistor driver circuit can be considered a great example of a boost converter circuit. The flyback diode connected across the relay is introduced to short circuit the reverse back EMFs from the relay coil and to protect the transistor whenever it switches OFF. If this diode is remov...
Red Wire for Air Conditioner Control Power (Hot) | How to Wire an Air Conditioner for Control 1The R terminal is the 24-volt hot feed from thecontrol step-down transformer. That will power the relay, contactor, or complete thecircuit in the circuit board. Finally, it will feed it with ...
adaptable, and reliable–and the programming is quite easy to learn. An example of a home-built trainer using a Productivity 1000 PLC is shown in the image below, along wit ha varieyt of sensors, wire connection
Although the use of emitter current limiter resistors looks good and technically correct, a simpler and a smarter approach could be to mount the BJTs over a common heatsink with a lot of heatsink paste applied to their contact surfaces. This idea will allow you to get rid of the messy wi...
How to Wire a Form 2S Meter Base for a Single-Phase Service By LearnMetering December 19, 2024 December 19, 2024 Electric meter A Form 2S meter is probably the most common type of electric meter used for single-phase, three-wire services. You’ll often find it in homes and small busi...
Signs of a Bad Transformer As a passive electrical device, it's rare for a transformer tomalfunction, and a certain amount of humming is normal. A transformer can malfunction, however, if there is a power surge large enough to damage the coils or wire contacts. When the transformer is dama...
“What is the black wire for on a thermostat?” “What if there is no C wire for the thermostat?”(Older thermostat; you can leave it without or add it) Let’s take a systematic and practical approach here. We will follow this general order to learn how to wire a thermostat: ...
I used heavy gage wire to try to reduce losses due to wire resistance. Every watt counts when you are living off-grid. This is the schematic for the new charge controller. It is pretty much the same as the old one above, except for the addition of the Volt meter and extra fuse ...
3-Wire Thermostat Wiring | How to Wire a Thermostat This is common for adigital thermostat that controlsa boiler. Finally, it has 24-volt hot and 24-volt common along with the wire for the heat which is likely white. 2-Wire Thermostat Wiring ...
A relay is an electrical component that works like a light switch, where it's turned on or off with an electrical signal. By connecting a relay to a Wi-Fi connected microcontroller like an ESP8266, you can build a connected switch that can be controlled