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No hay artículos en el carroChaz
Comentado en los Estados Unidos el 25 de noviembre de 2024
I use this to switch on my 12V bike lights and 12V motorcycle dashcams automatically from my bike's normal hub generator. The built-in comparator is a much smaller load than a relay coil, so it can be switched by tiny signals, while the output is a standard 10A automotive relay, so it can switch big loads. The comparator also allows some adjustment, and by putting a capacitor across the input you can make the device latch on for a given amount of time.I bought a 5V one but it actually has a 12V relay on it. It works fine at both 12V and 5V, so I don't know if the 12V and 5V parts are actually any different.
Tinker_740
Comentado en los Estados Unidos el 21 de octubre de 2024
This review is for the Taidacent LM393 Voltage Comparator Relay Module, 1 Channel, 12V.The unit is assembled perfectly and with good components. Nothing broke or dislodged while fitting to the application.I used it in an automotive application on a Chevy 3500 truck that has turn signal LEDs in the side tow mirrors. I used the module relay to turn off the turn signal LEDs in the side mirrors at night because I don't like the strobe/glare at night.I powered it with 12vdc and triggered (compared) via a pulse-width modulated (PWM) signal wire. The instrument dimmer on the dash supplies a PWM signal which illuminates the backlit LEDs in the door switches at night or when the parking or headlights are on. That signal is used to trigger the module relay to activate and open the turn signal wire to the LEDs in the mirror. I used one in each door. It works perfectly for my application. Since I used a PWM signal, the potentiometer adjustment has no affect but does not matter because the comparator is still triggered - even if the instrument panel dimmer is turned all the way down. I have no doubt the adjustment affect would be maintained if you were using it on a standard dc voltage signal instead of a PWM circuit.I could have built a module like this but the quality and craftsmanship would not have been as good and the cost for parts likely would be the same. Bonus - the included box, cover, and screws is a perfectly snug fit. You can mount the board in the box or on the inside of the lid using the included screws into the pre-molded stand-off holes. I mounted mine to the inside of the lid which permitted the board to be removed with the lid for easier wiring connections. The only hole I had to drill was for my wiring in and out of the box.I would definitely buy from this company again. The quality is perfect but the included box is the deal-sealer.
R. Shine
Comentado en los Estados Unidos el 2 de octubre de 2024
I got the 12V version of this module. It came with a nice enclosure. I had to do so research on the web to figure out how to use this product for example, the jumper settings to access the 3 functions. It worked well once I got it set up.There is about 30 mV of hysteresis which prevents problems if the input voltage = comparator voltage.I also saw about 300 to 400 uS of jitter until the output of the relay was stable.I would be nice to see some use examples of the 3 functions.This module is built well and will serve my purpose for driving heavy loads.Enjoy!
Luis Fonseca
Comentado en los Estados Unidos el 16 de octubre de 2024
Excelente articulo
Geo Brecke
Comentado en los Estados Unidos el 14 de septiembre de 2023
I bought this device to operate as a dump or diversion load for my off-grid 24V battery plant, when the battery is above 26.8 volts, I want to close the relay and allow nonessential loads to run, if it drops below that, I want the relay to open.I think the pot is bad, so I'll attempt to get this one replaced and try another one. It would be nice if the documentation was better.
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